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This publication is available free of charge from the National Energy 

Information Center at the following address:

National Energy Information Center, El-20

Forrestal Building

U.S. Department of Energy

Washington, D. C. 20585

(202) 252-8800

Released for printing April 8, 1982
Residential Energy 

Consumption Survey:

Consumption 

Patterns of 

Household 

Vehicles, 

June 1979 to 

December 1980

Energy Information Administration 

Office of Energy Markets and End Use 

Energy End Use Division 

U.S. Department of Energy 

Washington, D.C. 20585

DOE/EIA-0319
CONTACTS

This report was prepared in the Office of Energy Markets and End Use under 

the directorship of Wray Smith. Overall report supervision was provided 

by Kenneth A. Vagts, Director of the Energy End Use Division, and by Lynda T. 

Carlson, Acting Chief of the Residential and Commercial Branch. The report's 

principal author was Bruce Egan. For futher information regarding this 

report's preparation or content, please contact him at (202) 252-1120. Major 

contributions were made by Robert Latta, Wendel Thompson, Eugene Reiser, 

and Dwight French.

ii
PREFACE

This is the second in a series of reports presenting data from the Household 

Transportation Panel, and the first to present 19-months of data. The 

first report, (DOE/EIA-0207/4), contained data for June, July, and August 1979. 

The next planned report, the last in the series, will contain additional data 

for January 1981 through September 1981. Concurrently, this office is examining 

the issues concerning the collection and interpretation of this type of data.

This report contains data for June 1979 through December 1980 on the use 

of household vehicles. (The household characteristics in this report 

reflect the structure of the household at the time of the original household 

surveys, and are not updated on a monthly basis.) The tables include both 

average and aggregate transportation statistics cross-classified by vehicle 

characteristics (size and age) and household characteristics (urban/rural, 

income, race, owner/renter, one-versus multi-vehicle, number of drivers, 

household size); and matching relative standard error tables. Also included 

are: a summary of findings; a description of how the survey was conducted; 

a copy of the fuel purchase log, and the background questionnaire; an 

explanation of the relative standard errors for total sample estimates; and 

a glossary.

iii
CONTENTS

Page

1. Consumption Patterns of Household Vehicles............................ 1

Fuel Consumption.................................................... 2

Miles Driven........................................................ 4

Price............................................................... 6

Expenditures........................................................ 8

Miles Per Gallon (MPG).............................................. 9

Primary Vehicles.................................................... 9

2. Limitations of The Data .............................................. 71

Overview ........................................................... 71

Computation of Estimates............................................ 71

Computation of Sampling Errors ..................................... 72

Using Error Estimates to Form Confidence Intervals.................. 73

Using Error Estimates to Test Statistical Hypotheses ............... 73

References ......................................................... 77

3. How the Survey Was Conducted ......................................... 79

Introduction ....................................................... 79

Sample Selection ................................................... 79

Survey Operations .................................................. 80

Data Processing .................................................... 81

Estimation ......................................................... 81

Response Rate ...................................................... 83

Appendixes

A. Fuel Purchase Survey Log ....................................... 87

B. Fuel Purchase Survey Instructions .............................. 91

C. Background Questionnaire ....................................... 93

D. Map of Census Regions .......................................... 97

Glossary ............................................................. 99
TABLES

Table A. Total Vehicle Miles, Household Vehicle Miles, and Household 

Vehicle Miles as a Percentage of Vehicle Miles by Year and 

Month............................................................. 5

Table B. Comparisons of Price Series Data for Motor Gasoline............... 6

Table C. Total and Estimated Numbers of Sample Households with Vehicles

by Year and Month................................................. 72

Table D. Test Data for Example 1........................................... 75

Summary Tables: U.S. Household Transportation Data

1. Monthly Totals for June 1979 to December 1979........................ 10

2. Monthly Totals for 1980.............................................. 11

3. Monthly Averages for June 1979 to December 1979...................... 12

4. Monthly Averages for 1980............................................ 13

5. Average Month for June 1979 to December 1979 by

Vehicles Ranked by MPG............................................... 14

6. Average Month for 1980 by Vehicles Ranked by MPG..................... 15

7. Average Month for June 1979 to December 1979 by

Vehicles Ranked by Miles Traveled.................................... 16

8. Average Month for 1980 by Vehicles Ranked by Miles Traveled.......... 17

9. Total for June 1979 to December 1979 by Vehicle Characteristics...... 18

10. Totals for 1980 by Vehicle Characteristics........................... 19

11. Average Month for June 1979 to December 1979

by Vehicle Characteristics. .......................................... 20

12. Average Month for 1980 by Vehicle Characteristics.................... 21

13. Totals for June 1979 to December 1979 by Geographic Location......... 22

14. Totals for 1980 by Geographic Location............................... 23

15. Average Month for June 1979 to December 1979

by Geographic Location............................................... 24

16. Average Month for 1980 by Geographic Location........................ 25

17. Totals for June 1979 to December 1979 by Family Income............... 26

VI
18. Totals for 1980 by Family Income..................................... 27

19. Average Month for June 1979 to December 1979 by Family Income........ 28

20. Average Month for 1980 by Family Income.............................. 29

21. Totals for June 1979 to December 1979 by Household Characteristics... 30

22. Totals for 1980 by Household Characteristics......................... 31

23. Average Month for June 1979 to December 1979 by

Household Characteristics............................................ 32

24. Average Month for 1980 by Household Characteristics.................. 33

25. Monthly Counts of Vehicles by Miles Driven for

June 1979 to December 1979........................................... 34

26. Monthly Counts of Vehicles by Miles Driven for 1980.................. 35

27. Monthly Counts of Vehicles by Gallons of Fuel Purchased

for June 1979 to December 1979....................................... 36

28. Monthly Counts of Vehicles by Gallons of Fuel Purchased for 1980..... 37

29. Monthly Counts of Vehicles by Dollar Expenditures

for June 1979 to December 1979....................................... 38

30. Monthly Counts of Vehicles by Dollar Expenditures for 1980........... 39

Relative Standard Error Tables: U.S. Household Transportation Data

31. Monthly Totals for June 1979 to December 1979:

Relative Standard Errors (Percents).................................. 41

32. Monthly Totals for 1980: Relative Standard Errors (Percents)......... 42

33. Monthly Averages for June 1979 to December 1979:

Relative Standard Errors (Percents).................................. 43

34. Monthly Averages for 1980: Relative Standard Errors (Percents)...... 44

35. Average Month for June 1979 to December 1979 by Vehicles Ranked

by MPG: Relative Standard Errors (Percents)......................... 45

36. Average Month for 1980 by Vehicles Ranked by MPG: Relative

Standard Errors (Percents)........................................... 46

37. Average Month for June 1979 to December 1979 by Vehicles Ranked

by Miles Traveled: Relative Standard Errors (Percents).............. 47

38. Average Month for 1980 by Vehicles Ranked by Miles Traveled:

Relative Standard Errors (Percents).................................. 48

vii
39. Totals for June 1979 to December 1979 by Vehicle Characteristics:

Relative Standard Errors (Percents).................................. 49

40. Totals for 1980 by Vehicle Characteristics: Relative Standard

Errors (Percents).................................................... 50

41. Average Month for June 1979 to December 1979 by Vehicle

Characteristics: Relative Standard Errors (Percents)................ 51

42. Average Month for 1980 by Vehicle Characteristics: Relative

Standard Errors (Percents)........................................... 52

43. Totals for June 1979 to December 1979 by Geographic Location:

Relative Standard Errors (Percents).................................. 53

44. Totals for 1980 by Geographic Location: Relative Standard Errors

(Percents)........................................................... 54

45. Average Month for June 1979 to December 1979 by Geographic

Location: Relative Standard Errors (Percents)........................ 55

46 Average Month for 1980 by Geographic Location: Relative Standard

Errors (Percents).................................................... 56

47. Totals for June 1979 to December 1979 by Family Income: Relative

Standard Errors (Percents)........................................... 57

48. Totals for 1980 by Family Income: Relative Standard Errors

(Percents)........................................................... 58

49. Average Month for June 1979 to December 1979 by Family Income:

Relative Standard Errors (Percents).................................. 59

50. Average Month for 1980 by Family Income: Relative Standard

Errors (Percents).................................................... 60

51. Totals for June 1979 to December 1979 by Household

Characteristics: Relative Standard Errors (Percents)................ 61

52. Totals for 1980 by Household Characteristics: Relative Standard

Errors (Percents).................................................... 62

53. Average Month for June 1979 to December 1979 by Household

Characteristics: Relative Standard Errors (Percents)................ 63

54. Average Month for 1980 by Household Characteristics:

Relative Standard Errors (Percents).................................. 64

55. Monthly Counts of Vehicles by Miles Driven - June 1979 to

December 1979: Relative Standard Errors (Percents).................. 65

56. Monthly Counts of Vehicles by Miles Driven - 1980: Relative

Standard Errors (Percents)........................................... 66

viii
57. Monthly Counts of Vehicles by Gallons of Fuel Purchased - June

1979 to December 1979: Relative Standard Errors (Percents).......... 67

58. Monthly Counts of Vehicles by Gallons of Fuel Purchased -

1980: Relative Standard Errors (Percents)........................... 68

59. Monthly Counts of Vehicles by Dollar Expenditures - June 1979

to December 1979: Relative Standard Errors (Percents)............... 69

60. Monthly Counts of Vehicles by Dollar Expenditures - 1980:

Relative Standard Errors (Percents).................................. 70

FIGURES

1. 1980 Petroleum Consumption in the United States (Percent)............ 3

2. Average Price of Gasoline for Residential Vehicles................... 7

ix
1. CONSUMPTION PATTERNS OF HOUSEHOLD VEHICLES

This is the second report in a statistical series that will provide monthly 

data on residential transportation characteristics and consumption patterns. 

Included are data on fuel consumption, expenditures, miles per gallon, and 

miles driven; all of which are cross-classified by household and vehicle 

characteristics. This report provides survey data for the June 1979 - 

December 1980 Household Transportation Panels (see "How the Survey was 

Conducted") which cover the 48 contiguous States and the District of Columbia.

Tables 1 through 4 summarize the total and average consumption data on a monthly

basis for the United States as a whole. Tables 5 through 24 show yearly

totals and average consumption data for the United States cross-classified

by vehicle and household characteristics. In all of the above tables,

total expenditures, total gallons purchased, and average price per gallon

are broken down into leaded and unleaded categories of gasoline. Tables 26

through 30 show monthly frequency counts (of vehicles) classified by

miles driven, gallons of fuel purchased, and dollar expenditures. Frequency

counts are not shown on a yearly basis since individual vehicles are not

kept in the survey for a full 12 months. (Again, see "How the Survey was

Conducted" for a more complete explanation). Tables 31 through 60 show

the relative standard errors for the data shown in Tables 1 through 30.

The consumption data presented throughout this report provides an insight 

into household-vehicle use patterns within the United States. Following 

the data tables are a description of how the survey was conducted, a copy 

of the fuel purchase log used each month, a copy of the background question 

naire filled out by participating households, an explanation and analysis 

of the relative standard errors determined for the total and average sample 

estimates, and a glossary; all of which should provide the reader with 

enough information to make effective use of the data presented in this 

report. The following text will concentrate on the 1980 data since it 

represents a full year. Comparisons with the 1979 data will be made to 

point out any significant changes between the two time periods.

The reader should note that because of the survey design used, roughly 

one-half of the households remain the same during consecutive months, once 

the household rotation is in operation. Hence, there is a high degree of 

correlation between consecutive months, and comparisons of individual 

months may be statistically significant more often than implied by 

the relative standard errors shown in this report. Also, the Bureau of the 

Census has made revisions to the definition of SMSA's and non-SMSA's and to 

the estimate of the population in the United States. Both of these changes 

affect the data in this report. The reader should refer to the Limitations 

of the Data section for a discussion of this problem.
Fuel Consumption

From January 1980 to December 1980, there were 74.9 billion gallons (+ 1.8) 1 

of gasoline and diesel fuel purchased by households within the United States.

This amount included 34.2 billion gallons (+1.9) of leaded fuels, 35.7 billion 

gallons (+1.8) of unleaded fuels, and 5.0 billion gallons (+0.6) of diesel fuels 

and fuels of unknown type. For the typical vehicle, 49.1 gallons (+1.2) were 

purchased during an average month in 1980.

To obtain an appropriate perspective on the 74.9 billion gallons of petroleum 

purchased as a fuel for residential transportation, it is useful to look at the 

following figures compiled from statistics presented in the November 1981 issue 

of Monthly Energy Review (MER), published by the U.S. Department of Energy (DOE);

Petroleum Consumption - 1980

Residential/Commercial Sector....30.6 billion gallons^

Industrial Sector................68.2 billion gallons

Transportation Sector........... 142.9 billion gallons

Electric Utilities Sector........ 19.9 billion gallons

U.S. Total .....................261.6 billion gallons

Motor Gasoline (Product Supplied)

1980......................................... 101.1 billion gallons

Total United States Consumption of all Energy

1980.........................................76.2 quadrillion (10 15 ) Btu

A comparison with the MER data indicates that more petroleum was purchased 

for use as fuel for household vehicles in the United States than was consumed 

in either the Residential/Commercial, Industrial, or Electric Utilities 

sectors. Figure 1 on page 3 shows that the 74.9 billion gallons purchased 

for household transportation represents 52.4 percent of all petroleum 

consumption in the transportation sector, and 28.6 percent of all petroleum 

consumed in the United States. In addition, of the 74.9 billion gallons 

of fuel purchased by households, at least 69.9 billion gallons^ were 

motor gasoline. This is 69.1 percent of the total amount of motor gasoline 

'product supplied' in the United States.

 *-The +_ values given in parentheses after a statistic quoted in the text 

represent two standard errors of the statistic. Adding and subtracting the 

value in parentheses from the statistic will produce an approximate 95 percent 

confidence interval.

^Excludes Residential/Commercial Transportation which is included in 

the Transportation Sector.

 ^The reader should note that the 74.9 billion gallons of fuel purchased 

by residential vehicles is not exactly comparable with the MER petroleum 

consumption statistics since the latter include petroleum used for lubrication 

and other nonfuel purposes while the 74.9 billion gallons is strictly 

petroleum used as a fuel.

^Includes 34.2 billion gallons of leaded gasoline and 35.7 billion gallons 

of unleaded gasoline as shown in Table 2.
Residential/

Commercial

11.7

Figure 1. 1980 Petroleum Consumption in the United States 

(Percent)
Finally, converting the 74.9 billion gallons of fuel purchased into Btu:

(74.9 x 10 9gallons) 5 ,409,000 Btu per barrel 1 

(42 gallons per barrel)

results in 9.6 quadrillion Btu. This is 12.6 percent of the total amount

of energy, 76.2 quadrillion Btu, consumed by all sectors of the U.S. economy,

Miles Driven

In 1980, residential vehicles were driven a total of 1,094.2 billion 

miles (+ 30.6), or an average of 8,614.8 miles (+ 241.2) per vehicle per 

year. (When average miles traveled per vehicle is calculated, those vehicles 

which are not used each month are included in the computations. Excluding 

vehicles not used results in a higher value for the annual miles traveled, 

9,195.6 miles, per vehicle for the "fleet in use" in 1980 as opposed to 

the entire residential fleet.)^

In Table 10, the difference in total miles traveled varies by vehicle model 

year. These variations are statistically significant. Vehicles built 

between 1975 and 1980 were driven a total of 705.2 billion miles (+ 36.7). 

This is more than double the 299.7 billion miles (+ 19.8) traveled in 

1970 to 1974 vehicles, and almost eight times the 88.3 billion miles 

(+ 11.3) traveled in 1969 or earlier vehicles.

The total miles traveled by vehicle class is, in part, dependent on the number 

of vehicles in each class. However, average miles traveled per vehicle for a 

typical month also show statistically significant differences (Table 12). 

Newer vehicles, 1975 to 1980, recorded the highest average miles traveled per 

vehicle, 904.4 (+ 27.1) for an average month. Those vehicles built from 

1970 to 1974 had~an average of 593.7 miles per vehicle (+ 28.5), and the 

older vehicles, 1969 and earlier, were driven an average of 371.4 miles 

(+ 26.7) during an average month. Overall, the average miles traveled per 

vehicle in an average month during 1980 was 717.9 (+ 20.1).

The following figures show the comparison between the Department of Transportation, 

(DOT), counts for total miles traveled by all vehicles in the United States, 

and the total miles traveled by household vehicles as reported by DOE 

in Tables 1 and 2 of this report:

^Average number of Btu for petroleum consumed in the transportation sector 

as reported in the November 1981 issue of Monthly Energy Review.

^All averages per vehicle shown throughout this report include vehi 

cles which were not driven and/or for which no fuel purchases were made, but 

were in working condition and available to be used. The 'non-use 1 of a 

vehicle is considered to be as valid an indicator of household behavior as 

the use of a vehicle, and, as such, should be included in averages which are 

intended to represent the consumption patterns of the residential transpor 

tation fleet as a whole.
Table A. Total Vehicle Miles, Household Vehicle Miles, and Household 

Miles as a Percentage of Vehicle Miles by Year and Month

Year/Month

1979

June..... 

July......

August....

September.

October...

November..

December.. 

Total.......

All Vehicle 

Miles 1 

(Billions)

131.2

134.9

139.9

127.6

131.6

123.4

123.2

911.8

Household 

Vehicle Miles 2 

(Billions)

93, 

98. 

93. 

89. 

94.

89.6

87.4

646.5 3

Household Miles 

as a Percentage 

of Vehicle Miles

71.0

72.9

67.1

70.1

71.7

72.6

70.9

70.9

1980

January. . 

February. 

March....

April....

May......

June.....

July......

August....

September. 

October... 

November.. 

December.. 

Total.......

115.3

106.2

124.2

125.4

131.2

132.4

138.4

140.6

127.5

132.2

123.3

124.1

1,520.8

83.5

81.0

89.2

86.3

89.8

93.1

101.0

98.6

90.0

95.3

93.9

92.3

1.094.23

72.4

76.3

71.8

68.8

68.4

70.3

73.0

70.1

70.6

72.1

76.2

74.4

71.9

^Federal Highway Administration, U.S. Department of Transportation. 

Includes all miles traveled on roads and streets in the United States.

^Energy End Use Division, Office of Energy Markets and End Use, Energy 

Information Administration, Department of Energy.

3May not sum due to rounding.

Household vehicles account for 71.9 percent of the miles traveled 

in the United States in 1980. As expected, seasonal variations are 

apparent when looking at miles driven on a monthly basis. For both the 

DOT and DOE data, generally higher monthly totals were recorded in the 

summer months than in the winter months.
Price

As can be seen in Figure 2 on page 7, the price of motor gasoline has changed 

dramatically since the survey was initiated in June 1979. The average price 

for all fuels has risen from 87.5 cents per gallon 0_f 0.9) in June 1979 to a 

high of 122.4 cents per gallon (+ 1.2) in June 1980, an increase of 40 percent. 

Leaded fuels have increased in price from 85.2 cents per gallon Of 0.9) to 120.2 

cents (+ 2.4) during the same time period, and unleaded fuels have shown a 

comparable increase from 89.7 cents 0_f 0.9) to 125.0 cents per gallon (+_ 0.8) in 

July 1980. ~~

Overall, the average price for fuel during the last six months of 1979 was

was 96.8 cents per gallon (+ 0.6). The average price for 1980 was 119.7 (+ 0.5).

Regular leaded fuel had the lowest average price per gallon-'-; 93.9 (+ 0.6)

in the last half of 1979, and 116.2 (+ 0.7) in 1980.

Table B. Comparisons of Price Series Data for Motor Gasoline

Year/Month

DOE/HTP 2 

(prices paid by 

all households)

1979

July..........

1989

April.........

May. ..........

July. .........

87.5

92.4

96.0

98.9

100.0

100.0

103.3

109.7

116.9

120.8

121.4

121.6

122.4

122.2

121.6

120.4

119.5

118.9

120.9

DOE/HTP 2 

(prices paid by 

urban households)

88.3

93.0

96.3

99.5

100.5

100.4

104.1

110.7

117.6

121.6

122.3

121.7

122.8

122.8

122.0

120.8

119.6

119.4

121.4

BLS/CPI 3 

(urban service 

station prices)

88.0

93.0

96.7

99.8

100.6

101.9

104.2

111.0

118.6

123.0

124.2

124.4

124.6

124.7

124.3

123.1

122.3

122.2

123.1

^Excluding unknown and diesel fuels.

^Household Transportation Panel, Energy End Use Division, Office of Energy 

Markets and End Use, Energy Information Administration, Department of Energy. 

Coverage - 48 contiguous States and the District of Columbia.

3"U.S. City Average Retail Prices for Motor Gasoline", Consumer Price 

Index, Bureau of Labor Statistics, U.S. Department of Energy, March 1981 

Monthly Energy Review, coverage represents 85 urban areas selected to represent 

all urban consumers which, in turn, represent 80 percent of the total U.S. 

population.
1.30

1.25

§ 1.20 

O 1.15

cc 111

Q.

o

QC

Q.

120.9

1.05

1.00

.95 

.90

.85

JJASONDJFM AM J J A S O N D 

JUNE 1979 - DECEMBER 1980

AVERAGE PRICE OF GASOLINE FOR RESIDENTIAL VEHICLES 

Figure 2.
Both data series show a comparable rise in fuel prices from June 1979 to 

December 1980. The differences between the data series may not be statis 

tically significant,^ but it should be noted that the surveys do vary 

in the type of data collected. The DOE/HTP survey consists of data 

collected from a sample of U.S. motorists while the BLS survey is based 

on a sample of urban service stations throughout the United States.

Expenditures

Total expenditures for fuel for residential vehicles in 1980 were $89.7 

billion (+ 2.2). By fuel type, this amount included $40.0 billion (+ 2.2) 

for leaded fuels, $43.8 billion (+ 2.3) for unleaded fuels, and $5.9 

billion (+0.7) for diesel and unknown fuels.

The total expenditures for fuel for residential vehicles represents 5.4 

percent of the total personal consumption expenditures, $1,672.8 billion2 , 

in the United States in 1980. In addition, it is 36.9 percent of the 

$243.0 billion-^ spent on transportation and transportation products by 

consumers during 1980.

For the average month in 1980, $58.80 (+ 1.4) was spent per vehicle for fuel. 

Annually, this is approximately $1,270 per year ($58.80 per vehicle per 

month x 1.8 vehicles per household x 12 months) for the average household 

which has one or more residential vehicles.

Total and average expenditures dramatically reflect the rising price of 

motor fuel during the survey months. In June 1979, the purchase of 

6.5 billion gallons (+0.4) of fuel resulted in total expenditures of 5.7 

billion dollars (+0.4), (average price of 87.5 cents per gallon (+0.9)). 

However, by June 1980, with an average price having increased to 122.4 

cents per gallon (+ 1.2), a total of 6.1 billion gallons (+0.4) were 

purchased at a cost of 7.4 billion dollars (+0.5). Thus, while there is 

no statistically significant change in the total gallonage purchased in 

June 1979 as compared to June 1980, there was a statistically significant 

increase in the total cost of the fuel purchased.

Ipor determining statistical significance, the relative standard 

error for the BLS/CPI price data would have to be known.

2 Survey of Current Business, January 1982, Tables 2.2-2.3, p. 12. 

3 Ibid, Table 2.2-2.3, p.12.
Miles Per Gallon

For 1980, residential vehicles in the United States averaged 14.7 miles 

per gallon (4-0.3). The efficiency of the residential vehicles in the 

survey was affected by, among other factors, the size of the vehicle. 

Full-size vehicles averaged 12.5 miles per gallon (+0.2) during an average 

month in 1980. Intermediates traveled 13.6 miles per gallon (4-0.2). 

Compacts averaged 15.7 miles per gallon (+0.3), and subcompacts were the 

most fuel-efficient with an average of 22.7 miles per gallon (+0.5).

In addition, newer vehicles were more fuel-efficient than older vehicles. 

Those vehicles built from 1975 through 1980 had a combined average miles 

per gallon of 15.7 (+0.3) while 1970 to 1974 vehicles, and 1969 and older 

vehicles, posted average miles per gallon of 13.2 (4-0.2) and 12.9 (_+0.4), 

respectively.

As data for future months are processed and made available, the effects on 

vehicle performance of various factors including seasonality can be determined.

Primary Vehicles

Of particular interest is the classification of residential vehicles into 

'primary' and 'secondary' categories in order to determine specific usage 

patterns within individual households, or the population as a whole. 

Alternative vehicle usage within a household is a real option for those 

households which have more than one vehicle. The use of large inefficient 

vehicles may be quite different than the use of small efficient vehicles. 

Tables 5 through 8 have been prepared to give some insight into these 

differences.

Tables 5 and 6 show average statistics classified by vehicles which have 

been ranked by miles per gallon (mpg), with vehicle No. 1 having the 

highest mpg. In Tables 7 and 8, the vehicles are ranked by mileage, with 

vehicle No. 1 having the highest mileage.

In both sets of tables, the data show similar trends. When ranked by 

mpg, the No. 1 vehicle had the highest average miles traveled than other 

vehicles in 1979 and 1980. When the vehicles are ranked by miles traveled, 

the No. 1 vehicles had the highest mpg in 1979 and 1980. Both of these 

statements indicate that the driving burden is not equally shared by 

vehicles in multi-vehicle households.

Additional ranking priorities, such as ranking by vehicle age, fuel expenditures, 

and type of fuel consumed, would assist in interpreting the relationship between 

vehicles in multi-vehicle households. Future reports will examine more 

closely the characteristics of No. 1 vehicles as compared to other vehicles 

as well as to the socioeconomic characteristics of the households in 

the survey.
TABLE 1. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY TOTALS FOR JUNE 1979 TO DECEMBER 1979

MONTH

U.S. TOTALS

MILES DRIVEN (BILLIONS).............

EXPENDITURES (BILLIONS CF DOLLARS) 

ALL FUELS........ .................

UNLEADED FUELS. .................

UNKNOWN, OTHER, £ DIESEL FUELS..

GALLONS PURCHASED (BILLIONS) 

ALL FUELS.........................

LEADED FUELS....................

UNLEADED FUELS. .................

UNKNOWN, OTHER, £ DIESEL FUELS..

NUMBER OF HOUSEHOLDS (MILLIONS) 

WITH VEHICLES..................

NUMBER OF VEHICLES (MILLIONS ).......

DRIVEN 100 MILES OR LESS.. ........

DRIVEN MURE THAN 100 MILES ........

1 

JUN | 

 79 |

L_-_-__i

93.2

5.7 

2.7 

2.7 

.3

6.5 

3.2 

3.0 

.3

69.0

122.9 

13.7 

109.2

1

JUL 1 

 79 1

98.4

6.0 

2.8 

2.9 

.3

6.5 

3.1 

3.0 

.3

69.2

123.2 

13.2 

110. C

I 

AUG 1 

 79 |

93.9

6.2 

2.9 

2.7 

.6

6.5 

3.1 

2.8 

.6

69.3

123.5 

10.3 

113.2

I

SEP I 

 79 |

89.4

5.8 

2.7 

2.5 

.6

5.9 

2.8 

2.5 

.6

69.4

123.9 

10.3 

113.6

1

OCT I

•79 |

-,._,._l

94.4

6.4

2.7

3.2

.5

6.4

2.7

3.2

.5

69.6

124.2

10.3

113.9

1

NOV 1

•79 |

89.6

6.4

3.0

3.1

.3

6.4

3.0

3.1

.3

69.7

124.5

13.1

111.5

DEC •79

___— J

87.4

6.6

3.2

3.1

.2

6.3

3.1

2.9

.2

69.8

124.8

18.5

106.2

TOTAL

L ____

646.5

43.1

20.0

20.3

2.8

44.5

21.1

20.5

2.9

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 2. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY TOTALS FOR 1980

..,_. . - , . . , , _.._.

1 1 ! 

JAN I FEB | MAR I APR 

 80 | '80 | «80 I '80 

1 1 1

MONTH

lilt 

| MAY | JUN I JUL ! 

1 «80 | «80 I '80 | 

L_.._. .. 1 .,...!,.., . J

AUG 

 80

1 

1 SEP 

1 '80 

_!__

1 1

1 OCT I 

1 '80 |

! 1

NOV 

 80

1 

1 DEC 

1 '80 

J

TOTAL

1 _

U.S. TOTALS

EXPENDITURES (BILLIONS OF DOLLARS)

ALL FUELS.........................

UNLEADED FUELS. .................

UNKNOWN, OTHER. G DIESEL FUELS..

GALLONS PURCHASED (BILLIONS)

ALL FUELS.........................

LEADED FUELS....................

UNLEADED FUELS. .................

UNKNOWN, OTHER, £ DIESEL FUELS..

NUMBER OF HOUSEHOLDS (MILLIONS)

WITH VEHICLES..................

NUMBER OF VEHICLES (MILL IONS) .......

DRIVEN 100 MILES OR LESS.. ........

DRIVEN MORE THAN 100 MILES........

BJ.D

6.6

3.2

3.0

.3

6.0

2.9

2.7

.3

70.0

125.2

16.8

108.4

81. U

7.0

3.3

3.3

.4

6.0

2.9

2.7

.4

70.1

125.5

14.8

110.7

cv. i

7.5

3.5

3.5

.6

6.2

3.0

2.e

. 5

70.2

125.7

10.8

114.9

at>. 3

7.1

3.3

3.2

.6

5.9

2.7

2.6

.5

70.3

126.2

13.8

112.4

BV.B

7.3

3.4

3.4

.5

6.0

2.9

2.7

.4

70.4

126.7

12.0

114.7

VS. 1

7.4

3.4

3.5

.5

6.1

2.8

2.6

.4

70.6

126.9

13.2

113.7

1U1.U

7.9

3.3

4.1

.5

6.5

2.8

3.3

.5

70.7

127.2

12.2

115.1

VB. t>

8.0

3.5

4.0

.5

6.6

3.0

3.2

.4

70.8

127.6

12.8

114.8

vu.u

7.2

2.9

3.8

.5

6.0

2.5

3.1

.4

70.9

128.0

11. 6

116.2

V5.rJ

7.8

3.4

4.0

.4

6.5

2.9

3.3

.4

71.0

128.0

12.6

115.4

vs . v

7.9

3.5

3.9

.5

6.6

3.0

3.2

.4

71.2

126.4

11.8

116.6

V£. 3 1

8.0

3.3

4.1

.6

6.6

2.8

3.3

.5

71.3

123.8

13.1

115.7

IUV«* £

89.7

40.0

43.8

5.9

74.9

34.2

35.7

5.0

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRAHCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 3. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY AVERAGES FOR JUNE 1979 TO DECEMBER 1979

AVERAGES PER VEHICLE

GALLONS CONSUMED....................

EXPENDITURES (DOLLARS! ..............

FUEL INVENTORY AS A PERCENT 

OF TANK CAPACITY... ................

JUN 

 79

52

51

7 *»fl

46

61

19

1 

I 

1

|

.9

.1

.3

.4

I 

JUL | 

 79 I 

,_..___!.

52.5

53.2

700 o

48.5

61.9

19.5

AUG 

 79

52.3

51.9

760.6

50.2

60.4

19.9

MONTH

I

I SEP 

1 79

1

47.

47.

721.

46.

60.

19.

! 

1

I

1

4

8

6

9

0

6

!

OCT | 

 79 | 

i

51.9

51.8

760.3

51.9

CO <Z

19.6

! 

NOV ! 

 79 | 

1

51.5

51.3

719.4

51.5

58.0

19.5

DEC

 79

50.

50.

700.

52.

58.

19.

9

?

8

5

6

8

AVERAGF

MONTH

L 

51.3

51.0

745.6

A q 7

60.0

19.6

AVERAGES PER GALLON

PRICE {CENTS PER GALLON)

ALL FUELS.......................

LEADED FUELS..................

REGULAR.....................

PREMIUM.....................

UNKNOWN.....................

UNLEADED FUELS................

REGULAR.....................

PREMIUM.....................

UNKNOWN.....................

UNKNOWN, OTHER, £ DIESEL FUELS

87.5

85.2

84.5

90.9

82.3

89.7

89.6

91.6

89.3

89. I

92.4

90.3

89.7

96.1

NA

94.7

94.7

97.7

93.9

90.5

96.0

94.0

93.1

101.1

107.0

98.4

97.9

101.4

98.5

95.9

98.9

96.7

95.9

101.9

99.0

101.3

100.8

105.1

101.9

98.6

100.0

97.5

96.3

105.0

99.0

102.1

101.5

104.6

103.1

99.6

100. 0

98.7

97.5

104.5

109.1

101.7

101.6

106.7

97.9

96.8

103.3

101.9

101.2

107.9

101.0

105,8

105.9

110. 1

103. 0

93.6

96.8

94.8

93.9

101.2

104.4

99.0

99.0

102.6

9?.6

95.7

MILES PER GALLON, 14.9 15.0 14.7 15.1 14.7 14.0 14.0 14.6

NA = NOT AVAILABLE

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTIHN SURVEY,

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY EMD USE DIVISICJM.,

OFFICE OF ENERGY MARKETS AND END USE,

ENERGY INFORMATION ADMINISTRATION.
TABLE 4. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY AVERAGES FOR 1980

MONTH

AVERAGES PER VEHICLE

MILES DRIVEN........................

FUEL INVENTORY AS A PERCENT

AVERAGES PER GALLON

PRICE 1 CENTS PER GALLON) 

ALL FUELS.........................

LEADED FUELS......... ...........

UNKNOWN.. .....................

PREMIUM.. .....................

UNKNOWN, OTHER, £ DIESEL FUELS.. 

MILES PER GALLON....................

1

JAN | 

•80 I

47.8 

48.2 

667.4 

52.4

56.3 

19.9

109.7 

107.8 

106.8 

114.6 

108.1 

112.3 

111.8 

119.1 

111.5 

105.6

13.8

1

FEB 1 

•80 1 

1

48.0 

47.2 

645.6 

56.1

56.6 

19.8

116.9 

114.8 

114.0 

121.8 

120.9 

119.4 

1 18.5 

125.0 

119.8 

114.1

13.7

MAR •80

49.5 

49. 5 

709. 7 

59.9

57.1 

19. 7

120.8 

118.6 

117.9 

124. 8 

125. "5 

123.5 

122. 8 

129. 8 

124.3 

118.1

14.4

I 

APR | 

•80 |

-.-,, 1

46.6 

46.5 

683. 9 

56. 5

56.8 

19.8

121.4

119.8 

119. 0 

128.2 

124. 2 

124.4 

123.8 

129.9 

125.5 

114.6

14.7

I

MAY | 

• 80 I 

1

47.1 

46.6 

7C8.7 

57.3

57.2 

19.7

121.6 

119.5 

118.8 

127.3 

129.4 

124.3 

124.3 

130.5 

122.2 

118.5

15.2

JUN 1 

•80 I 

__ L

47.8 

47.9 

733. 8 

58.5

56.6

19.7

122.4 

120.2 

119.7 

128.3 

125.4 

124.9 

124.6 

130. 5 

124.4 

120.3

15.3

I 

JUL t

•80 I

I

51.1 

51.4 

794.1 

62.4

56.6 

19.8

122.2 

119.4 

118. 1 

128.9 

120.9 

125.0 

124.4 

131. 1 

124.9 

119.4

15.5

1 

AUG 1 

•80 I 

f

51.5 

51.2 

773.0 

62.6

56.4 

20.0

121.6 

118.5 

117.7 

128.2 

121.6 

124.7 

123.7 

132.3 

1?6. 1 

120.0

15. 1

1 

SFP I 

•80 1

46.7 

46.3

703.3 

56.2

55.7 

19.8

120.4 

117.6 

116.5 

129.7 

117.2 

123.0 

122.3 

130.8 

122.6 

116.8

15.2

1 

OCT | 

•80 | 

i.

50.7 

50.5 

744.7 

60.6

56.6 

20.0

119.5 

116.5 

115.4 

131.5 

120.9 

122.4 

122.0 

128.5 

121.5 

116.9

14.8

NOV •80

51 

51 

731 

61

20

118 

115 

114 

128 

115 

122 

121 

128 

121 

118

14

.7 

.6 

.4 

.4

.3 

.2

.9 

.2 

.5 

.2 

.8 

.3 

.6 

.4 

.9 

.9

.2

AVERAGE

MONTH 

OEC •80

1

51.2 

50.9 

716.6 

62.0

55.2 

19.9

120.9 

117.2 

116.6 

127.4 

120.3 

1?4.2 

123.3 

130.3 

124.2 

119.8

14.1

49.1 

49.0 

717.9 

58.8

56.5 

19.8

119 .7 

117.0 

116.2 

125.8 

120.2 

122.6 

122.0 

128.8 

122.4 

117.1

14.7

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 5. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR JUNE 1979 TO DECEMBER 1979 BY VEHICLES RANKED BY MPG

TOTAL

ONE

VEHICLE 

HOUSEHOLDS

TWO VEHICLE 

HOUSEHOLDS

I

*1 I #2 

VEHICLE I VEHICLE 

________i__.

AVERAGES PER VEHICLE

GALLONS PURCHASED................... 51.3 51.5

GALLONS CONSUMED.................... 51.0 50.9

MILES DRIVEN........................ 745.6 748.1

EXPENDITURES (DOLLARS).............. 49.7 50.3

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY................... 60.0 63.7

FUEL TANK CAPACITY (GALLONS)........ 19.6 19.8

AVERAGES PER GALLON

PRICE (CENTS PER GALLON)

ALL FUELS......................... 96.8 97.7

MILES PER GALLON.................... 14.6 14.7

55.4

55.0

883.6

53.6

60.0

18.6

96.8

16.1

47.2

47.1

592.2

45.6

58.8

20.7

96.7

12.6

THREE OR MORE

VEHICLE 

HOUSEHOLDS

I I t

#1 I #2 I #3 I OTHER 

VEHICLE I VEHICLE I VEHICLE I VEHICLES 

1_________I_________1_________1________.

53.6

52.7

928.7

51.6

56.9

17.7

96.5

17.6

THE #1 VEHICLE HAS THE HIGHEST MPG, THE #2 VEHICLE THE NEXT HIGHEST MPG, ETC. 

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

59.8

60.3

823.4

57.7

58.2

20.2

96.4

13.7

40.5

40.6

464.2

3S.6

58.5

21.1

95.3

11.4

30.1

30.5

339.2

28.7

58.0

20.4

95.4

11.1
TABLE 6. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR 1980 BY VEHICLES RANKED BY MPG

TOTAL

ONE

VEHICLE 

HOUSEHOLDS

TWO VEHICLE 

HOUSEHOLDS

#1 I *2 

VEHICLE I VEHICLE

THREE OR MORE

VEHICLE 

HOUSEHOLDS

I 1 I 

#1 1 #2 I #3 I OTHER 

VEHICLE 1 VEHICLE I VEHICLE I VEHICLES

______I________

AVERAGES PER VEHICLE

GALLONS PURCHASED................... 49.1 50.3 55.0 43.2

GALLONS CONSUMED.................... 49.0 50.0 54.7 43.3

MILES DRIVEN........................ 717.9 720.7 895.6 538.2

EXPENDITURES (DOLLARS).............. 58.8 60.9 66.1 51.5

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY................... 56.5 59.8 56.3 55.2

FUEL TANK CAPACITY (GALLONS)........ 19.8 19.8 18.7 21.0

AVERAGES PER GALLON

PRICE (CENTS PER GALLON)

ALL FUELS......................... 119.7 121.0 120.1 119.2

MILES PER GALLON.................... 14.7 14.4 16.4 12.4

THE #1 VEHICLE HAS~THE~HlGHEST MPGt THE #2 VEHICLE THE~NEXT HIGHEST~MPG7~ETC.~ 

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

51.6

51.3

940.4

61.5

56.4

17.4

119.2

18.3

53.1

53.0

727.7

63.2

55.5

20. 1

119.1

13.7

41.1

41.4

478.6

48.5

54.1

22.4

118.1

11.6

32.0

32.0

329.8

37.4

51.6

21.5

116.9

10.3
TABLE 7. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR JUNE 1979 TO DECEMBER 1979 BY VEHICLES RANKED BY MILES TRAVELED

TOTAL

AVERAGES PER VEHICLE

GALLONS PURCHASED...................... 51.3

GALLONS CONSUMED....................... 51.0

MILES DRIVEN........................... 745.6

EXPENDITURES (DOLLARS)................. 49.7

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY...................... 60.0

FUEL TANK CAPACITY (GALLONSJ........... 19.6

AVERAGES PER GALLON

PRICE (CENTS PER GALLON)

ALL FUELS............................ 96.8

MILES PER GALLON... .................... 14.6

TWO VEHICLE 

HOUSEHOLDS

ONE

VEHICLE

HOUSEHOLDSI

I #1

VEHICLE

#2 

VEHICLE

THREE OR MORE

VEHICLE 

HOUSEHOLDS

I T

#1 I #2 ! »3 

VEHICLE I VEHICLE 1 VEHICLE

________I_________L_______

51.5

50.9

748.1

50.3

63.7

19.8

97.7

14.7

67.6

67.4

1010.7

65.6

60.3

19.8

96.9

15.0

31.8

31.5

432.2

30.7

58.4

19.2

96.4

13.7

83.3

83.5

1239.6

80.3

60.0

20.1

96.3

14.9

46.1

45.3

662.2

44.1

56.9

19.2

95.8

14.4

THE #1 VEHICLE HAS THE HISHEST MILES TRAVELED, THE #2 VEHICLE THE NEXT HIGHEST MILEST TRAVELED, ETC. 

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL ANO COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS ANO END USE, 

ENERGY INFORMATION ADMINISTRATION.

23.2

23.1

305.1

22.4

57.2

19.9

96.3

13.2

OTHER 

VEHICLES

16.3

15.9

195.8

15.6

53.8

18.3

95.7

12.3
TABLE 8. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR I960 BY VEHICLES RANKED BY MILES TRAVELED

TOTAL

AVERAGES PER VEHICLE

GALLONS PURCHASED................... 49.1

GALLONS CONSUMED.................... 49.0

MILES DRIVEN........................ 717.9

EXPENDITURES (DOLLARS).............. 58.8

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY................... 56.5

FUEL TANK CAPACITY (GALLONS)........ 19.8

AVERAGES PER GALLON

PRICE (CENTS PER GALLON)

ALL FUELS......................... 119.7

MILES PER GALLON.................... 14.7

ONE

VEHICLE 

HOUSEHOLDS

_J____.

50.3

50.0

720.7

60.9

59.8

19.8

121.0

TWO VEHICLE 

HOUSEHOLDS

VEHICLE I VEHICLE

________1________

66.1

66.2

1012.5

79.3

56.9

19.8

120.0

15.3

30. 1

29.8

398.6

35.9

54.4

19.8

119. 1

13.4

VEHICLE 

i_______

77.7

77.8

1212.3

92.2

57.7

19.5

118.7

15.6

THREE OR MORE

VEHICLE 

HOUSEHOLDS

| #2 

I VEHICLE

45.5

45.4

630.2

54.2

54.7

20.1

119.0

13.9

I

! #3 

I VFHICLF

24.0

23.7

307.8

23.4

53.5

20.4

118. 5

13.0

I OTHER 

I VEHICLES

12.2

12.3

155.8

14.3

49.6

19.8

117.8

12.7

THE #1 VEHICLE HAS THE HIGHEST MILES TRAVELED, THE #2 VEHICLE THE NEXT HIGHEST MILES TRAVELED, ETC. 

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 9. U.S. HOUSEHOLD TRANSPORTATION DATA - TOTALS FOR JUNE 1979 TO DECEMBER 1979 BY VEHICLE CHARACTERISTICS

TOTAL

F

U

L

L

S

I

z

E

\

I

N

T

E

R

M

E

D

I

A

T

E

L ___ J

/EH1CL1

C

0

M

P

A

C

T

L

= SIZE

S

U

B

C

0

M

P

A

C

T

L_ J

0

T

H

E

R

L__

U

N

K

N

0

W

N

.

1975

TO

1980

L _J

MODE

1970

TO

1974

. ____ J

U.S. TOTALS

oo

I960

AND

EARLIER

EXPENDITURES I BILLIONS OF DOLLARS)

LEADED FUELS. ........................

UNKNOWN, OTHER, S DIESEL FUELS.......

GALLONS PURCHASED (BILLIONS) 

ALL FUELS..............................

LEADED FUELS. ........................

UNLEADED FUELS.. .....................

UNKNOWN, OTHER, £ DIESEL FUELS.......

..... 43

..... 20

..... 20

..... 2

..... 21

..... 20

..... 123

.1

.0

.3

.a

.5

.1

.5

.9

12.5

5.5

6.1

12.9

5.7

6.2

1.0

31.2

8.0

2.9

4.8

.4

8.3

3.0

4.8

.4

21.8

6.9

2.5

4.0

.3

7.0

2.7

4.1

.3

22.2

5.3

2.6

2.5

.2

5.4

2.7

2.5

.2

20.0

4.5

3.0

1.2

.3

4.7

3.1

1.2

.3

11.5

5.9

3.6

1.6

.6

6.1

3.8

1.6

.6

17.1

24.5

4.9

18.5

1.1

25.0

5.2

18.7

1.1

58.2

14.1

11.5

1.4

1.2

14.9

12.2

1.4

1.2

43.6

4.4

3.6

.3

.5

4.6

3.7

.4

.5

21.9

NA = NOT AVAILABLE

SOURCE: HOUSEHOLD TRANSPORTATION PANELt RESIDENTIAL ENERGY CONSUMPTION SURVEY,

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION,

OFFICE OF ENERGY MARKETS AND END USE,

ENERGY INFORMATION ADMINISTRATION.

UNKNOWN

0.3

.0 

.0 

.0 

NA

.0 

.0 

.0 

NA

.2
TABLE 10. U.S. HOUSEHOLD TRANSPORTATION DATA - TOTALS FOR 1980 BY VEHICLE CHARACTERISTICS

TOTAL

F 

U 

L 

L

S

I 

Z

E

VEHICLE SIZE

I

N

T

E

R

M

E

D

I

A

T

6

C

0

M

P

A

C

T

S

U

B

C

0

M

P

A

C

T

L___J

0

T

H

E

R

L 

U

N

K

N

0

W

N

_

MODEL YEAR

1975

TO

1981

^

1970

TO

1974

L_,_ -

I960

AND

EARLIER

UNKNOWN

U.S. TOTALS

MILES DRIVEN (BILLIONS) 1094.2 240.0 203.9 199.9 215.8 133.5 101.2 705.2 ?99.7 88.3 0.9

EXPENDITURES (BILLIONS OF DOLLARS) 

ALL FUELS........................

LEADED FUELS...................

UNLEADED FUELS.................

UNKNOWN, OTHER, 6 DIESEL FUELS.

GALLONS PURCHASED (BILLIONS)

ALL FUELS........................

LEADED FUELS...................

UNLEADED FUELS.................

UNKNOWN, OTHER, 6 DIESEL FUELS.

NUMBER OF VEHICLES (MILLIONS).

89.7

40.0

43.8

5.9

74.9

34.2

35.7

5.0

127.0

23.1

9.8

11.7

1.6

19.3

8.4

9.5

1.4

30.2

18.2

6.2

10.9

1.0

15.0

5.3

8.9

.9

23.4

15.4

5.1

9.4

.9

12.8

4.4

7.7

.8

23.2

11.4

4.7

6.1

.7

9.5

4.0

4.9

.5

21.2

12.9

8.9

3.2

.6

10.9

7.7

2.6

.5

16.1

8.7

5.2

2.5

1.0

7.4

4.5

2.1

.9

12.8

54.6

11.6

40.7

2.3

45.1

10.0

33.1

2.0

65.0

26.9

21.7

2.5

2.6

22.8

18.5

2.1

2.2

42.1

8.1

6.6

.6

.9

6.9

5.6

.5

.8

9.8

.1

.0

.0

.0

.1

.0

.0

.0

.1

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 11. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR JUNE 1979 TO DECEMBER 1979 BY VEHICLE CHARACTERISTICS

AVERAGES PER VEHICLE

GALLONS CONSUMED..................

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY.................

FUEL TANK CAPACITY (GALLONS )......

TOTAL

51.3

51.0

745.6

49.7

60.0

19.6

F

U

L

L

S

I

z

E

CQ 0

58.5

743.2

57.4

60.6

23.2

I

N

T

E

R

M

E

D

I

A

T

E

54.1

53.5

77 O 1

52.6

60.0

21.0

VEHICL1

C

0

*

P

A

C

T

L J

45.3

45.0

706.1

A A J

60.3

17.5

E SIZE

S

U

B

C

0

M

P

A

C

T

L _ J

38.7

38.5

874.4

37.7

59.8

12.9

0

T

H

E

R

L __ .

58.8

59.2

739.7

56.0

59.1

22.1

U

N

K

N

P

W

N

1, ,, .J

51.1

51.4

676.0

48.8

59.2

20.3

1975

TO

1980

61.3

61.0

950.5

60.2

62.0

19.6

MQDH

1970

TO

1974

L_ __J

48.7

48.5

650.1

46.2

58.2

19.8

. YEAR

1960

AND (UNKNOWN

EARLIER)

1

30.2 18.2

29.8 20.1

394.4 280.3

28.9 18.5

57.7 53.8

19.5 17.0

AVERA6ES PER GALLON

PRICE (CENTS PER GALLON! 

ALL FUELS.............

MILES PER GALLON.

96.8

14.6

97.0

12.7

97.3

13.6

97.5

15.7 22.7

95.2

12.5

95.5

13.1

98.1 94.9 95.7 101.7

15.6 13.4 13.2 13.9

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 12. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR 1980 BY VEHICLE CHARACTERISTICS

AVERACES PER VEHICLE

EXPENDITURES (OCLLARS)... .........

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY.................

FUEL TANK CAPACITY (GALLONS)......

TOTAL

A Q I

AQ f\

717 Q

58.8

56.5

19.8

F

U

L

L

S

I

z

E

L ......

53.1

cj a

662.2

63.8

56.5

23.6

I

N

T

E

R

M

E

D

I

A

T

E

53.5

c-a y

725. A

64.7

57.3

21.0

VEHICLI

C

0

M

P

A

C

T

L. t -

45.9

AC -I

717.2

55.3

57.3

18.0

E SIZE

S

U

B

C

0

M

P

A

C

T

L- _ ~J

37.3

37.3

847.4

/.{. Q

57.3

13.1

0

T

H

E

R

L __ __ J

56.7

56.4

691.0

66.6

54.8

22.4

U

N

K

N

0

W

N

L- _

47.8

48.1

656.1

56.4

54.5

20.1

1975

TO

1981

L _J

57.9

57.8

904.4

70.1

58.5

19.8

MODEl

1970

TO

1974

L __.

45.2

44.9

593.7

53.2

54.4

20.0

. YEAR

1

1960

AND

EARLIER

28.9

28.9

371.4

34.1

53.6

19.8

UNKNOWN

33.3

33.8

525.2

39.5

58.7

18.3

AVERAGES PER GALLON

PRICE (CENTS PER GALLON) 

ALL FUELS .............

MILES PER GALLON.

119.7

14.7

120.0

12.5

120. 9

13.6 15.7

120.3

22.7 12.3

118.1 121.0 117.7 118.0 118.7

13.6 15.7 13.2 12.9 15.5

SOURCE: HOUSEHOLD TRANSPORTATION PANELi RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 13. U.S. HOUSEHOLD TRANSPORTATION DATA - TOTALS FOR JUNE 1979 TO DECEMBER 1979 BY GEOGRAPHIC LOCATION

UNITED STATES

r

Q 

T 

A 

L

0 

R 

B 

A 

N

R 

U 

R 

A 

L

CENSUS REGIONS

NORTHEAST

T

0

T 

A

L

U 

R 

B

A 

N

R

U 

R 

A

L

NORTH CENTRAL

1 

T I U 

0 j R 

T I B 

A I A 

L | N

L 1

R 

U 

R 

A

L

SOUTH

T 

0 

T 

A

J

U

R 

B 

A 

N

l_ J

R 

U 

R 

A

L 

L_ J

WEST

j 

0

 » 

* 

I

U 

R

B 

A 

N

L J

R 

U 

R 

A

L 

1 ____

U.S. TOTALS

MILES DRIVEN (BILLIONS!. 646.5 437.9 208.6 120.0 87.4 32.5 178.1 125.7 52.4 227.8 137.0 90.8 120.6 87.7 33.0

to 

N)

EXPENDITURES (BILLIONS OF DOLLARS)

ALL FUELS........ ..............

LEADED FUELS....................

UNLEADED FUELS. .................

UNKNOWN, OTHER, £ DIESEL FUELS..

GALLONS PURCHASED (BILLIONS)

UNKNOWN, OTHER, t DIESEL FUELS..

NUMBER OF HOUSEHOLDS (MILLIONS!

NUMBER OF VEHICLES (MILL IONS 1 .......

43.1

20.0

20.3

2.8

44.5

21.1

20.5

2.9

69.4

123.9

29.7

13.2

14.8

1.7

30.5

13.9

14.9

1.7

50.5

87.0

13.3

6.8

5.4

1.1

14.0

7.2

5.5

1.1

18.9

36.9

8.3

3.3

4.7

.3

8.3

3.4

4.6

.3

14.7

23.9

6.2

2.6

3.3

.3

6.3

2.7

3.3

.3

11.8

18.4

2.0

.7

1.3

.0

2.1

.7

1.3

.0

2.9

5.5

12.1

5.3

5.9

.9

12.5

5.7

5.9

.9

19.0

34.2

8.7

3.7

4.4

.5

8.9

3.9

4.4

.6

13.9

24.3

3.5

1.6

1.5

.3

3.7

1.7

1.5

.3

5.1

9.9

14.7

7.3

6.6

.8

15.7

7.9

6.8

.9

22.8

42.0

8.9

4.1

4.5

.4

9.6

4.5

4.7

.4

14.8

26.0

5.7

3.2

2.1

.4

6.1

3.5

2.2

.5

8.0

16.0

8.0

4.1

3.1

.8

8.0

4.1

3.1

.8

13.0

23.8

5.9

2.8

2.6

.5

5.8

2.8

2.6

.5

10.0

18.3

2.1

1.3

.5

.3

2.1

1.3

.5

.3

3.0

5.5

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 1*. U.S. HOUSEHOLD TRANSPORTATION DATA - TOTALS FOR 1980 BY GEOGRAPHIC LOCATION

U.S. TOTALS

UNITED STATES

,, , -.- -

T 

0 

T 

A

L

. ... ,

U 

R 

B 

A

N

___J

R

U 

R 

A

L

L _ J

NORTHEAST

1 

T 1 U

0 I R 

T 1 B 

A | A 

L | N

L___ L_ _J

R 

U 

R 

A 

L 

L __ J

CENSUS 1

. .

NORTH CENTRAL

- -

T 

P 

f

A

L

L __ J

u

R 

B 

A

N

L _J

p 

u

R

A 

L

._..,

'EGIONS

SOUTH

T 

0 

T 

A 

L 

L_ _ J

u

R 

B 

A

N 

L___ J

R 

U 

R 

A 

L 

L _J

T 

0 

T 

A 

L

WEST

u

R

B 

A 

N

!___ J

R 

U 

R 

A 

L

to

U)

EXPENDITURES (BILLIONS OF DOLLARS)

ALL FUELS.........................

LEADED FUELS....................

UNLEADED FUELS. .................

UNKNOWN, OTHER, £ DIESEL FUELS..

GALLONS PURCHASED (BILLIONS)

ALL FUELS.........................

LEADED FUELS....................

UNKNOWN, OTHER, £ DIESEL FUELS..

NUMBER OF HOUSEHOLDS (MILLIONS)

NUMBER OF VEHICLES (MILL IONS ).......

iu-*«t

89

40

43

5

74

34

35

5

70

127

. ^

.7

.0

.8

.9

.9

.2

.7

.0

.6

.0

/ 1*1.

59.

25.

30.

3.

49.

21.

24.

3.

49.

86.

o

5

3

4

9

5

5

7

3

9

1

3 It

30

14

13

2

25

12

11

1

20

41

.t

.1

.7

.4

.0

.4

.6

.0

.7

.7

.0

<:uo

17

6

9

1

14

5

7

14

23

. 4.

.3

.7

.4

.1

.1

.6

.6

.9

.7

.7

13.S.

13.

4.

7.

10.

4.

5.

11.

18.

3

0

9

3

7

6

1

9

6

7

3

719.8 374.4 208.2 153.3 54.9 303.4 196.7 106.6 365.7 199.9 165.o 216.9 169.9 47.0

4.3

1.8

2.1

.4

3.5

1.5

1.7

.3

3.0

5.5

25.5

10.8

13.2

1.5

21.5

9.3

10.8

1.3

19.2

35.2

16.6

6.7

8.9

1.1

13.9

5.7

7.3

.9

13.4

23.5

8.9

4.1

4.3

.5

7.6

3.6

3.6

.4

5.8

11.7

29.3

13.5

14.0

1.9

24.8

11.7

11.5

1.6

22.8

41.5

16.3

7.1

PI.2

.9

13.8

6.2

6.8

.8

13.8

23.6

13.0

6.3

5.6

.9

11.0

5.4

4.8

.8

9.0

17.9

17.6 13.6

9.0 6.5

7.2 6.0

1.4 1.1

14.4 11.1

7.5 5.4

5.8 4.8

1.2 1.0

13.9 11.0

26.5 20.6

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

4.0

2.5

1.2

.2

3.3

2.1

1.0

.2

2.9 

5.9
TABLE 15. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR JUNE 1979 TO DECEMBER 1979 BY GEOGRAPHIC LOCATION

UNITED STATES

_ _ . .

T 

0

A 

L

.,

U 

R 

B 

A

N

R 

U 

R 

A

L

CENSUS REGIONS

NORTHEAST

0

A 

L

U 

R 

B 

A

N 

l__ J

R 

U 

R 

A

L

L , . . ...

NORTH CENTRAL

T 

0

A 

L

L____J

U 

R 

B 

A 

N 

L__J

R 

U 

R 

A 

L

T 

0 

T 

A 

L

SOUTH

I 

U I R 

R 1 U 

B f R 

A 1 A 

N 1 L 

L 1 ,

WEST

0 

T 

A 

L

U 

R 

B 

A

N

R 

U 

R 

A 

L

AVERAGES PER VEHICLE

EXPENDITURES ( DOLLARS) ............

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY.................

FUEL TANK CAPACITY I GALLONS) ......

AVERAGES PER GALLON

PRICE (CENTS PER GALLON »

ALL FUELS... ....................

UNLEADED FUELS.. ..............

PREMIUM.... .................

UNKNOWN, OTHER, £ DIESEL FUELS

51.3

51.0

7*5.6

49.7

60.0

19.6

96.8

94.8

93.9

101.2

104.4

99.0

99.0

102.6

97.6

95.7

14.6

50.1

49.8

719.2

48.8

60.3

19.5

97.4

95.4

94.4

101.4

110.7

99.4

99.3

103.0

97.7

97.0

14.5

54.2

54.0

808.0

51.7

59.4

20.0

95.5

93.7

92.9

100.6

91.1

98.2

98.2

100.6

97.5

93.8

15.0

50.0

49.6

718.3

49.6

61.5

19.3

99.2

96.8

96. 1

102.2

97.0

101.1

100.8

106. 8

99.9

97.6

14.5

48.8

48.4

680.1

48.5

61.5

19.2

99.3

97.1

96.2

102.3

98.9

101.2

100.9

107.3

99.3

97.6

14.1

53.8

53.8

846.0

53.3

61.4

19.3

99.0

95.6

95.5

99.1

95.7

100.8

100.6

102.5

101.8

97.9

15.7

52.4

51.9

744.9

50.7

60.1

20.3

96.9

94.3

94.2

98.8

106.4

99.9

99.9

104.4

98.0

93.3

14.4

52.1

51.5

739.4

51.0

60.6

20.1

97.8

95.0

94.8

100.0

113.0

100.5

100.5

104.3

98.4

96.8

14.4

53.0

52.9

758.3

50.1

59.0

20.7

94.5

92.7

92.5

97.1

93.2

98.1

98.1

104.6

97.0

88.3

14.3

53.2

53.0

774.0

49.8

57.9

19.8

93.6

91.8

91.1

96.7

91.8

95.8

95.4

100.1

94.3

93.1

14.6

52.4

52.0

751.6

49.0

58.1

19.8

93.5

91.5

90.8

95.6

97.0

95.6

95.2

100.5

93.6

92.7

14.4

54.6

54.5

810.6

51.2

57.6

19.8

93.7

92.2

91.5

98.5

89.2

96.1

95.7

99.1

95.7

93.5

14.9

47.9

47.8

724.0

48.1

61.8

18.8

100.5

99.4

97.4

105.5

114.0

101.8

132.5

103.0

100.2

100.9

15.1

45.6

45.6

685.4

46. 1

61.5

18.5

101.1

100.3

98.2

105.8

114.0

102.0

102.9

103.0

100.4

100.8

15.0

55.2

55.0

851.6

54.5

62. 5

20.1

98.7

97.5

95.8

104.6

NA

100.7

101.3

NA

99.0

101.1

15.5

NA = NOT AVAILABLE

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY,

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION,

OFFICE OF ENERGY MARKETS AND END USE,

ENERGY INFORMATION ADMINISTRATION.
TABLE 16. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR 1980 BY GEOGRAPHIC LOCATION

.

UNITED STATES

...

T 

0 

T 

A

L

U 

R 

B 

A

N

R 

U 

R 

A 

L

CENSUS REGIONS

NORTHEAST

0

A 

L

U 

R 

B 

A

N

R 

U 

R 

A 

L

L___J

NORTH CENTRAL

T

n

A 

L

L ___ J

u

R 

B 

A 

N

L __J

R 

U

R 

A

L

L___J

SOUTH

0 

A

U 

R 

B 

A

N

R 

U 

R 

A 

L 

L__

R

U

R

A

L

T

0

T

A

L

WEST

U

P

B

A

N

AVERAGES PER VEHICLE

GALLONS PURCHASED. 

GALLONS CONSUMED..

49.1

49.0

47.9

47.7

51.7

51.6

49.4

49.2

48.3

48.0

53.3

53.3

50.9

50.8

49.3

49. 1

54.1

54.2

49.9

49.6

48.8

48.5

51.3

51.0

45.4

45.4

45.1

45.0

R 

U 

R 

A 

L

46.7

46.8

MILES DRIVEN........................ 717.9 697.0 761.9 730.4 698.9 835.5 717.7 696.5 760.4 734.0 704.5 772.9 681.9 687.1 663.5

Ui

EXPENDITURES { DOLLARSJ.......

FUEL INVENTORY AS A PERCENT 

OF TANK CAPACITY...........

FUEL TANK CAPACITY (GALLONS).

AVERAGES PER GALLON

58.8 57.7 61.3 60.6 59.3 64.9 60.3 58.9 63.3 58.8 57.4 60.6 55.4 55.1 56.3

56.5

19.8

56.5

19.6

56.4

20.3

57.4

19.4

57.6

19.5

56.7

19.1

56.9

20.4

56.2

20.1

58.3

21.0

53.9

19.8

54.1

19.9

53.7

19.7

58.9

19.6

58.6

18.9

59.9

21.9

PRICE ICENTS PER GALLON!

ALL FUELS.........................

LEADED FUELS....................

REGULAR.......................

UNKNOWN.. .....................

UNKNOWN, OTHER, £ DIESEL FUELS..

119.7

117.0

116.2

125.8

120.2

122.6

122.0

128.8

122.4

117.1

120.3

117.4

116.4

126.5

120.9

123.1

122.5

129.4

122,9

117.7

118.6

116.4

116.0

123.7

117.8

121.6

121.1

127.5

121.3

116.0

122.5

119.4

118.8

125.4

123.0

125.0

124.2

130.7

124.7

121.3

122.8

119.8

119.2

125.6

124.1

125.0

124.2

131.2

124.9

120.9

121.6

118.1

117.9

122.7

120.9

124.8

124.4

128.9

123.7

122.0

118.5

115.5

115.2

126.9

117.7

121.7

121.0

129.8

121.8

114.3

119.4

116.0

115.6

126.8

120.1

122.3

121.6

130.4

122.0

117.2

117.1

114.8

114.7

127.8

109.8

120.4

119.8

127.9

121.3

108.6

117.9

115. 1

114.7

121.9

117.3

120.9

120.3

127.0

120.1

116. 1

117.7

114.5

114.1

121.1

118.2

121.0

120.3

127.2

120.7

114.5

118.2

115.8

115.4

122.7

116.1

120.9

120.4

126.fi

119.2

117.7

121.9

120.1

118.3

127.5

121.3

124.8

124.8

128.0

124.5

118.7

122.3

120.5

118.3

128.2

121.1

125.0

125.1

127.9

124.3

119.1

120.6

119.2

118.3

124.6

122.7

124.3

123.6

129.0

125.1

116.7

MILES PER GALLON. 14.7 14.6 14.8 14.8 14.6 15.7 14.1 14.2 14.0 14.8 14.5 15.2 15.0 15.3 14.2

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 17. U.S. HOUSEHOLD TRANSPORTATION DATA - TOTALS FOR JUNE 1979 TO DECEMBER 1979 BY FAMILY INCOME

NJ

TOTAL

U.S. TOTALS

MILES DRIVEN (BILLIONS)............. 646.5

EXPENDITURES tBlLLIONS OF DOLLARS)

ALL FUELS......................... 43.1

LEADED FUELS.................... 20.0

UNLEADED FUELS.................. 20.3

UNKNOWN, OTHER, £ DIESEL FUELS.. 2.8

GALLONS PURCHASED (BILLIONS)

ALL FUELS......................... 44.5

LEADED FUELS.................... 21.1

UNLEADED FUELS.. ................ 20.5

UNKNOWN, OTHER, £ DIESEL FUELS.. 2.9

NUMBER OF HOUSEHOLDS (MILLIONS)

WITH VEHICLES.................. 69.4

NUMBER OF VEHICLES (MILLIONS)....... 123.9

27.4

1.9

1.0

.6

.3

2.0

1.1

.6

.3

6.0 

7.7

62.8

4.2

2.2

1.7

.3

4.5

2.4

1.8

.3

9.7 

14.5

FAMILY INCOME

I I

I $10,000 | $15,000 I $20,000 I $25,000

TO I TO TO I OR

I $14,999 I $19,999 | $24,999 I MORE

114.2

7.5

3.6

3.3

.7

7.8

3.8

3.3

.7

14.4

23.3

115.7

7.9

4.0

3.5

.4

8.2

4.3

3.6

.4

11.9

21.4

SOURCE: HOUSEHOLD TRANSPORTATION PANFL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

114.4

7.7

3.3

4.0

.4

7.9

3.5

4.0

.4

10.8

20.8

212.0

13.8 

5.7 

7.2

.8

14.1

6.0 

7.2

.8

16.5

36.1
TABLE 18. U.S. HOUSEHOLD TRANSPORTATION DATA - TOTALS FOR 1980 BY FAMILY INCOME

TOTAL

N)

I

»0 I $5,000 

TO I TO 

$4,999 j $9,999 

_______J_______

U.S. TOTALS

MILES DRIVEN {BILLIONS}............. 1094.2 49.6

EXPENDITURES (BILLIONS OF DOLLARSI

ALL FUELS......................... 89.7 4.3

LEADED FUELS.................... 40.0 1.7

UNLEADED FUELS.................. 43.8 1.8

UNKNOWN, OTHER, £ DIESEL FUELS.. 5.9 .8

GALLONS PURCHASED (BILLIONS)

ALL FUELS......................... 74.9 3.6

LEADED FUELS.................... 34.2 1.5

UNLEADED FUELS.................. 35.7 1.4

UNKNOWN, OTHER, t DIESEL FUELS.. 5.0 .7

NUMBER OF HOUSEHOLDS (MILLIONS)

WITH VEHICLES.................. 70.6 5.7

NUMBER OF VEHICLES (MILLIONS)....... 127.0 7.7

116.9

9.9 

4.8 

4.1 

1.0

8.2

4.0

3.3

.9

11.4

16.8

FAMILY INCOME

1 I ! I 

I $10,000 I $15,000 t $20,000 | $25,000

1 TO I TO I TO I

_L _L

188.7

15.6 

7.9 

6.9

.8

13.1

6.7

5.6

.7

13.8

22.3

172.2

14.3

6.9

6.7

.8

12.1

5.9

5.5

.7

10.4

19.0

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

190.5

15.7 

7.4 

7.3 

1.0

13.1 

6.3

6.0

.8

10.7

21.4

OR

I $14,999 I $19,999 | $24,999 | MORE

376.2

29.Q

11.4

17.1

1.4

24.8

9.7

13.9

1.2

18.5

39.8
TABLE 19. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR JUNE 1979 TO DECEMBER 1979 BY FAMILY INCOME

00

AVERAGES PER VEHICLE

TOTAL

FAMILY INCOME

I 1 1 1 )

$0

TO

$4,999

I $5,000 I $10,000 1 $15,000 I $20,000 I $25,000

I TO

I $9,999 

J___.

TO I TO I TO I

$14,999 | $19,999 I $24,999 f 

.___!_______I_________I

OR 

MORE

GALLONS PURCHASED..................... 51.3 37.0 43.7 47.8 54.9 54.3 55.9

GALLONS CONSUMED...................... 51.0 36.7 43.0 47.7 54.7 53.8 55.8

MILES DRIVEN.......................... 745.6 508.4 617.2 698.9 773.5 785.1 839.0

EXPENDITURES (DOLLARS)................ 49.7 35.8 41.6 46.2 52.7 52.8 54.6

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY..................... 60.0 60.4 59.1 61.6 58.9 59.0 60.5

FUEL TANK CAPACITY (GALLONS).......... 19.6 19.8 20.1 19.4 19.9 19.4 19.5

AVERAGES PER GALLON

PRICE (CENTS PER GALLON)

ALL FUELS........................... 96.8 96.9 95.2 96.6 95.9 97.2 97.6

LEADED FUELS...................... 94.8 95.4 94.0 94.4 94.7 94.7 95.3

REGULAR......................... 93.9 94.4 93.6 93.5 94.0 94.0 94.0

PREMIUM......................... 101.2 105.9 98.9 100.5 99.6 100.9 102.5

UNKNOWN......................... 104.4 NA 92.6 98.0 99.8 83.2 112.1

UNLEADED FUELS.................... 99.0 99.5 97.2 99.4 97.4 99.6 99.8

REGULAR......................... 99.0 100.9 97.9 99.4 97.2 100.0 99.3

PREMIUM......................... 102.6 97.5 102.6 104.4 98.6 103.0 103.2

UNKNOWN......................... 97.6 96.7 92.0 97.1 97.7 96.3 100.3

UNKNOWN, orHER, £ DIESEL FUELS.... 95.7 96.4 94.1 95.5 96.8 94.8 96.0

MILES PER GALLON...................... 14.6 13.9 14.4 14.7 14.1 14.6 15.0

NA = NOT~AVAILABLE ———————————— ————

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 20. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR 1980 BY FAMILY INCOME

to

FAMILY INCOME

TOTAL I I I I I

I $5,000 1 $10,000 I $15,000 ) $20,000 1 $25,000

 u I TO I TO I TO I TO I OR

$4,999 J $9,999 1 $14,999 | $19,999 | $24,999 ! MORE

i ____j_ i I I

$0

TO

I

AVERAGES PER VEHICLE

GALLONS PURCHASED................... 49.1 39.0 41.0

GALLONS CONSUMED.................... 49.0 38.T 40.5

MILES DRIVEN........................ T17.9 539.7 580.9

EXPENDITURES (DOLLARS).............. 58.8 47.1 49.0

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY................... 56.5 57.0 56.8

FUEL TANK CAPACITY (GALLONS!........ 19.8 19.6 20.0

AVERAGES PER GALLON

PRICE (CENTS PER GALLON)

ALL FUELS......................... 119.7 120.6 119.7

LEADED FUELS.................... 117.0 118.1 118.0

REGULAR....................... 116.2 116.7 117.0

PREMIUM....................... 125.8 126.1 125.5

UNKNOWN....................... 120.2 120.5 122.9

UNLEADED FUELS.................. 122.6 123.5 122.3

REGULAR....................... 122.0 123.5 121.4

PREMIUM....................... 128.8 128.3 129.6

UNKNOWN....................... 122.4 121.9 121.1

UNKNOWN, OTHER, C DIESEL FUELS.. 117.1 119.9 117.7

MILES PER GALLON.................... 14.7 13.9 14.3

48.9

48.7

705.5

58.3

55.8

20.0

119.3

116.7

116.3

122.3

118.5

122.5

122.1

126.7

122.6

118.2

14.5

52.8

52.8

754.7

62.8

55.2

19.9

119.0

116.5

115.8

125.3

120.0

122.0

121.1

128.2

122.1

116.2

14.3

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

51.1

50.8

740.9

60.9

54.9 

19. S

119.2

116.8

115.9

127.9

114.9

122.1

121.7

127.7

122.1

117.0

14.6

51.9

51.9

786.8

62.5

57.9

19. 8

120.4

117.2

116.3

127.3

122.1

123.2

122.5

130.1

123.0

115.2

15.2
TABLE 21. U.S. HOUSEHOLD TRANSPORTATION DATA - TOTALS FOR JUNE 1979 TO DECEMBER 1979 BY 

HOUSHOLO CHARACTERISTICS

TOTAL

HOUSING STATUS

0

W

N

E

R

S

R

E

N

T

E

R

S

NUMBER OF

VEHICLES

USED BY

HOUSEHOLD

_ . . . _

V

E

H

1 I

C

L

E

L 

2

V

0 E

R H

I

M C

0 V

R E

E S

NUMBER OF DRIVERS

IN HOUSEHOLD

1 0

ft

T I

0 V

E

2 R

5

3

D

0 R

R I

V

M E

0 R

R S

E

U

0 N

T A K

H N N

EDO

R W

N

L -- - I 1

U.S. TOTALS

EXPENDITURES (BILLIONS OF DOLLARS)

ALL FUELS...........................

LEADED FUELS......................

UNKNOWN, OTHER, £ DIESEL FUELS....

GALLONS PURCHASED (BILLIONS)

ALL FUELS...........................

LEADED FUELS......................

UNLEADED FUELS . ...................

UNKNOWN, OTHER, S DIESEL FUELS....

NUMBER OF HOUSEHOLDS (MILLIONS)

WITH VEHICLES....................

43.1

20.0

20.3

2.8

44.5

21.1

20.5

2.9

69.4

35.1

16.5

16.4

2.1

36.3

17.5

16.6

2.2

54.5

8.0

3.5

3

0

.7

8.2

3.6

3.9

.7

14.9

10.0

3.9

5.4

.7

10.2

4.1

5.4

.7

28.6

33.1

16.1

14.9

2.1

34.3

17.0

15.0

2.2

40.8

32.1

14.8

15.0

2.2

33.2

15.6

15.2

2.3

58. I

10.9

5.1

5.2

.6

11.3

5 A

5.2

.6

11.2

0.5

.0 

.0 

.0 

.0

.0 

.0 

.0 

.0

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTiAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 22. U.S. HOUSEHOLD TRANSPORTATION DATA - TOTALS FOR 1980 BY HOUSEHOLD CHARACTERISTICS

U.S. TOTALS

TOTAL

HOUSING STATUS

0

M

(M

E

R

S

R

E

N

T

E

R

S

NUMBER OF

VEHICLES

USED BY

HOUSEHOLD

V

E

H

1 I

C

L

E

2

V

0 E

R H

I

M C

0 V

R E

E S

NUf

I 0

R

T I

0 V

E

2 R

S

I OF DPIVEPS 

IN HOUSEHOLD

3

0

R

M

0

R

E 

L_

D

R

I

V

E

R

S

0

T

H

E

R

A

N

D

U

N

K

N

0

W

N

EXPENDITURES (BILLIONS OF OOLLARSI

LEADED FUELS......................

UNLEADED FUELS ....................

UNKNOWN, OTHER, 6 DIESEL FUELS....

GALLONS PURCHASED (BILLIONS)

ALL FUELS...........................

UNLEADED FUELS.. ..................

UNKNOWN, OTHER, £ DIESEL FUELS....

NUMBER OF HOUSEHOLDS (MILLIONS!

89.7

40.0

43.8

5.9

74.9

34.2

35.7

5.0

70.6

70.4

31.3

34.8

4.2

58.8

26.7

28.4

3.6

53.0

19.3

8.7

9.0

1.6

16.1

7.4

7.3

1.4

17.6

20.2

7.5

11. 1

1.6

16.7

6.3

9.1

1.4

00 0

69.4

32.5

32.6

4.2

58.2

27.8

26.6

3.6

42.3

65.0

28.1

32.2

4.7

54.2

23.9

26.2

4.0

CQ n

24.4

11.8

11.5

1.2

20.5

10.1

9.4

1.0

12.2

2.5

.2 

.1 

.1

.0

.2 

.1 

.1

.0

SOURCE: HOUSEHOLD TRANSPORTATION PANELt RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 23. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR JUNE 1979 TO DECEMBER 1979 BY 

HOUSEHOLD CHARACTERISTICS

10 

to

TOTAL

HOUSING STATUS

0

M

N

E

R

S

1

R

E

N

T

E

R

S

NUMBER OF

VEHICLES

USED BY

HOUSEHOLD

V

E

H

1 I

C

L

E

1 , ...

2

V

0 E

R H

I

M C

0 L

R E

E S

L

NUMBER OF DRIVERS

IN HOUSEHOLD

1 0

0

T I

0 V

£

2 R

S

3

0

0 R

R I

V

M E

0 "

R S

E

U

0 N

T A K

H N N

EDO

R H

N

AVERAGES PER VEHICLE

MILES DRIVEN....................

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY... ............

FUEL TANK CAPACITY ( GALLONS 1 ....

AVERAGES PER GALLON

PRICE ICENTS PER GALLON)

MILES PER GALLON................

.... 51.

.... 51.

.... 745.

. . . . 49 .

.... 19.

.... 14.

3

0

6

7

0

6

8

6

50.7

50.4

734.1

49.1

60.4

19.9

96.8

14.6

54.

53.

800.

52.

57.

18.

96.

14.

2

8

0

5

7

6

8

9

51.5

50.9

748.1

50.3

63.7

19.8

97.7

14.7

51.

51.

744.

49.

58.

19.

96.

14.

3

1

9

5

9

6

5

6

49.6

49.3

718.6

48.0

60.5

19.6

96.8

14.6

57.5

57.4

842.2

55.7

58.2

19.6

96. 8

14.7

21.5

21.3

269.5

21.1

67.3

22.3

93.2

12.7

SOURCE: HOUSEHOLD TRANSPORTATION PANELt RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 24. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR 1980 BY HOUSEHOLD CHARACTERISTICS

co

TOTAL

L

HOUSING STATUS

0

W

N

E

R

S

R

E

N

T

E

R

S

NUMBER OF

VEHICLES

USED BY

HOUSEHOLD

_ -

V

E

H

I I

C

L

E

2

V

0 E

R H

I

M C

0 L

R E

E S

NUMBER OF DRIVERS

IN HOUSEHOLD

1 D

R

T I

0 V

E

2 R

S

3

D

0 R

R I

V

M E

0 R

R S

E

U

0 N

T A K

H N N

EDO

R W

N

AVERAGES PER VEHICLE

GALLONS PURCHASED................

FUEL INVENTORY AS A PERCENT

AVERAGES PER GALLON

PRICE (CENTS PER GALLON)

ALL FUELS......................

49.1

... 717.9

... 119.7

14.7

48.6

48.5

707.3

58.1

57.1

20.0

119.7

14.6

51.4

51.1

758.9

61.5

53.9

19.1

119.6

14.9

50.3

50.0

720.7

60.9

59.8

19.8

121.0

14.4

48.8

48.7

717.1

58.3

55.5

19.9

119.4

14.7

47.3

47.1

695.1

56.7

56.9

19.8

120.0

14.8

55.0

55.0

790.6

65.5

55.0

20.0

119.0

14.4

38.3

38.3

518.2

47.9

61.1

20.5

125.2

13.5

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 25. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY COUNTS OF VEHICLES 

BY MILES DRIVEN FOR JUNE 1979 TO DECEMBER 1979

00

MILES DRIVEN

TOTAL............

0..............

1 TO 100.......

101 TO 200.....

201 TO 300.....

301 TO 400.....

401 TO 500.....

501 TO 600....,

601 TO 700.....

701 TO 800.....

801 TO 1,000... 

1,001 TO 2,000. 

2,001 OR MORE..

MILLIONS OF VEHICLES BY MONTH

JUN 

•79

JUL 

•79

AUG 

•79

SEP 

•79

122.91 123.21 123.51 123.9

I 

10.0)

I 

3.71

I 

7.7|

I 

6.21I

I 

10.2)

1 

3.01

I 

6.9|I

I 

8.41

1 

1.9|

6.8|I

8.7| 10.21 I

10.51 8.4] I

9.2! I

11.01 I

9.0| I

6.4| I

16.61 I

27.31 I

5.41 I I

9.11

I 

9.11

I 

8.1]

I 

14.31

I 

28.3|

I 

7.9|1

I 

10.4)

I 

11.31

I 

9.6|

I 

8.81

! 

10.5!

I 

14.41

I 

26.3|

! 

4.8|I

6.2

4.1

8.0

9.2

10.7

11.8

11.6

10.3

9.2

14.71 I

24.3! I

3.8! 

1. I

OCT I N3V 

•79 I «79

_____1

! DEC 

I «79

12463689

11

109

11

13

304

I 

,2| 124.

I 

.9! 9.

1 

.41

I 

.9!I

.51I

.41

,01I

.11

3| 

II

,41I

.01

II L

4.

8,

8, 

10.

8. 

13.

8.

9. 

13, 

27,

3,

I 

5! 124.8

I 

01 11.9

I 

0|

I 

2!I

41

6.6 

7.6

,21 I

0! I

8.7 

9.4 

9.6 

7.5

7|

I 

21

I 

7| 10.4

1 

6|

I 

.61

I 

,911

14.2

25.7

4.2

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 26. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY COUNTS OF VEHICLES BY MILES DRIVEN FOR I960

OJ

MILES DRIVEN

T°TAL.. .....................

101 TO 200..... ...........

501 TO 600................

MILLIONS OF VEHICLES BY MONTH

1 

JAN I 

•80 |

1 

1 

125.21 

1 

11.9J 

1

1 

10.11 

1 

8.7| 

1

1

8.7| 

1 

11.51 

1 

10.6) 

1 

7.21 

1 

13.8) 

1 

23.0| 

1 

3.4|

1 

FEB 1 

•80 I 

1.

1 

1 

125.51 

1 

9.7| 

1 

5.21 

1 

11.2! 

1 

10.31 

1 

11.81 

1 

11.71 

1 

11.51 

1 

9.21 

1 

8.6) 

1 

13.21 

1 

19.51 

1 

3.7|

MAR 

•80

125.7 

7.5 

3.3 

9.8 

10.3 

11. 1 

13. 1 

9.1 

9.5 

9.0 

13.6 

24.7

4.7

_ . . ,

1 

APR | 

•80 | 

l_ 1

1 

1 

1 126.21 

1 

1 9.21 

1 

1 4.6) 

1 

1 6.91 

1 1 

1 11.41 

1 1 

1 10.31 

1 

1 11.71 

1 

1 10.61 

1 

1 8.61 

1 

1 10.11 

1 

1 14.81 

1 

1 24.81 

1 

1 3.31 

L _i

MAY 

•80

- —J

126.7

7.9 

4.0 

7.8 

10.3 

11.3 

6.6 

13.0 

9.1 

10.2 

14.8 

25.9

3.7 

____ J

JUN JUL 

•80 '80

L _L J

126.9 

7.7 

5.5 

11.7 

9.9 

8.4 

11.0 

8.5 

8.7 

8.7 

15.1 

25.9

1 5.7

. - J

127.2 

6.9 

5.2 

10.7 

I 8.8 

9.3 

1 9.1 

1 8.4 

1 9.4 

7.9 

14.3 

1 29.1 

I 8.1

1 

AUG I 

•80 | 

J

1 

1 

127.61 

1 

7.8| 

1 

5.01 

1 

7.11 

1 

11.5) 

1 

11.51 

1 

8.6| 

1 

9.51 

1 

10.81 

1 

6.81 

1 

13.71 

1 

28.61 

1 

6.6) 

U 1

1 1 

SEP I OCT | 

'80 1 «80 | 

1 - 1

1 1 

1 1 

128.01 128.01 

1 1 

6.7| 6.61 

1 1 

5.1| 6.11 

1 1 

10.31 7.9| 

1 1 

10.61 11.11 

1 I 

12.01 9.01 

1 1 

10.41 9.8| 

1 1 

11.7| 10.3| 

1 1 

8.8| 11.6) 

1 1 

8.2| 9.1| 

1 1 

14.81 11.9| 

1 1 

25.31 30.01 

1 1 

4.11 4.7| 

__ L ___ „!,

NOV •80

128 .41 

1 

6.71 

1 

5.21 

1 

9.31 

1 

8.41 

1 

11.61 

1 

9.9| 

1 

11.71 

1 

9.4| 

1

1 

14.41 

1 

28.01 

1 

4.21 

_L

DFC 

•80

128.8 

7.7 

5.4 

9.2 

12.3 

9.8 

12.6 

10.5 

8.3 

7.7 

14.5 

26.0 

4.8

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 27. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY COUNTS OF VEHICLES 

BY GALLONS OF FUEL PURCHASED FOR JUNE 1979 TO DECEMBER 1979

U)

GALLONS

TOTAL 

0..

1 T 

11 

21 

31 

41 

51 

61 

71 

81 

91 

101

PURCHASED

...........................

TO 20......................

TO 30......................

TO 50......................

TO 60......................

no unDP

MILLIONS

JUN •79

122.9 

10.5 

4.4 

o.7 

14.7 

14.1 

17.1 

13.0 

9.6 

5.7 

5.3 

6.5 

12.3

JUL •79

123.2

11.2 

1 

3.9

12.0 

14.6 

15.7 

13.1 

12.8 

8.3 

7.7 

6.9 

1 3.8

13.1

I

AUG •79

123 

1 

1 9 1 2

1 14 

16 

14 

! 13

1 10 1

I 

9

10

1 6 

1 

1 3 

1 

1 12

L_

OF

.51 

1 

.21 1

.01!

.211

.9]1

.61

1 

.71!

.91 

1 

.21 

1 

.71 

1 

.21 

1 

.21 

1 

.81 |

VEHICLES1

SEP I 

• 79 I |

1 

1 

123.91 

1 

6.71 

1 

4.01 

1 

15.51 

1 

16.51 

1 

18.91 

I 

16.21 

1 

15.8| 

1 

6.8) 

1 

8.21 

1 

4.7| 

1 

2.4! 

1 

8.2| |

BY

OCT •79

124

8 

4 

10 

12 

14 

18 

15 

12 

8 

6 

2 

10

MONTH 1

I 

1 |

1 

1 

.21 

1 

.41 

1 

.61 

1 

.91

! 

.71 

1 

.01 

1 

.01 

1 

.1! 1

.41 

1 

.61 

1 

.01 

1 

.61 

I 

.91 |

NDV •79

124 

10 

3 

11 

14 

17 

14 

12 

8 

9 

5 

6 

11

.5 

.2 

.8 

.1 

.7 

.1 

.5 

.0 

.7 

.0 

.9 

.3 

.2

DEC •79

124.8 

13.9 

6. P 

9.0 

12.3 

15.3 

14.0 

10.8 

9.1 

8.2 

7.3 

4.0

1 14.0 

|_

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 28. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY COUNTS OF VEHICLES BY GALLONS OF FUEL PURCHASED FOR 1980

GJ

._._

GALLONS PURCHASED

0.........................

1 TO 10.. .................

11 TD 20. .... .............

31 TO 40. .................

41 TO 50..................

71 TO 80..................

01 TH on

101 OR MORE...............

JAN FEB 

•80 '80

125.2 125.5|

1 

13.1 10.41

I

5.8 4.8!

1 

11.81 13.01

1 1 

16.4| 17.11

1 ! 

15.21 15.7]

1 1 13.6] 16.6)

1 1 12.71 13.11

1 1 9.6| 9.6|

I 1 

7.6] 6.6]

1 1 4.6) 4.6)

1 1 4.21 3.21

1 1 10.71 10.91

1 1

MAR •80

125.7

8.4

5.0

12.4

12.8

18.0

18.3

j -a A

9.5

8.0

5 A

A O

10.3

J

APR 

•80

126.2

I Q «;

1 5.C

! 13.0

1 17.0

1 17.0

1

1 c o

1 1 "} Q

1 11 n

I P ~t

3.7

1 7 &.

I Q t*.

MILLIONS OF VEHICLES BY MONTH

1 1 1 1 II

MAY 1 JUN I JUL 1 AUG 1 SEP OCT I NOV 1 DEC 

•80 | '80 I «80 ! '80 ! «80 '80 ! • 80 | «80

t 1 1 L I 1 J_

III) I I 

1 1 1 I II

1 126.71 126.91 127.21 127. 6| 123.0 128. 0| 128.4! 128.8

1 1 ! 1 I II 

1 9.7| 10.3| 9.0| 9.2! 8.3 9.0| 8.7| 9.8

1 1 1 1 II 1 4.0| 5.81 5.1! 5.51 7.2 6.2! 4.8| 5.4

1 1 1 1 1 I 

1 14.7! 16.1! 15.3! 14.21 15.0 11.61 14.1| 14.4

1)11 It 

1 17.11 18.9| 15.21 14.5| 17.0 16. 0| 13. 0| 15.6

1 1 t 1 II 

1 16.7J 14.8| 15.41 16.61 18.6 18. 0| 19 . 8 1 14.4

1 1 1 1 II 1 15.81 13.1) 15.9| 16.41 14.6 16.6! 14.61 14.8

1 1 1 1 1 I 

1 12.51 12.81 11. 5| 12.11 11.5 12.31 13.01 12.4

1 I 1 1 II 1 10.21 7.9| 8.8| 9.8| 10. 0 9.6| 9.7| 7.7

1 1 1 1 II 7.4| 6.3| 5.4| 6.1! 7.6 5.9| 8.1| 9.7

till I 1 4.51 5.0| 7.0| 6.0| 5.6 6.6| 5.6| 5.9

1 1 1 1 1 I 1 4.01 3.61 3.31 4.0| 2.9) 3.6! 4.9| 5.7

1 1 1 ! I I 1 10.0J 12.21 14.9| 13.11 9.8| 12.61 12.2! 13.1

.!..._., 1 1, I 1 1 !_.._,.

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 29. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY COUNTS OF VEHICLES 

BY DOLLAR EXPENDITURES FOR JUNE 1979 TO DECEMBER 1979

CO

EXPENDITURES

TOTAL...............

to................

$10.00 OR LESS.... 

$10.01 TO $20.00.. 

$20.01 TO $30.00.. 

$30.01 TO $40.00.. 

$40.01 TO $50.00.. 

$50.01 TO $60.00.. 

$60.01 TO $70.00.. 

$70.01 TO $80.00.. 

$80.01 TO $90.00.. 

$90.01 TO $100.00. 

$100.01 OR MORE...

MILLIONS OF VEHICLES BY MONTH

JUN •79 JUL •79 I

I 

122.91

I 

10. 5f

I 

5.5J

I 

12.11

I 

15.71

I 

20.81

I 

15.31

I 

10.51I

AUG •79

123.21I

11.21

I 

4.41

I 

14.0]

I 

15.41

I 

16.61

I 

15.21I

123.5] I

9.2( !

1.8) I

16.51 I

15.9| I

11 

I 

9|I

15

10.71 11.51 I I

8.3| 7.8| 10.4) I I

6.8| 8.21I

6.0) I

2.41 I

4.31 I

5.0| I

I

7. 8JI

5.21I

I

SEP I

•79 |

_____1.II

123.91 I

6.7| 1

4.6| I

15.31 I

17.71 I

16.7! I

18.21 I

13.51 I

8.9| I

6.6| I

5.11 I

1.9| I

OCT 

•79

I NOV 

j '79

8.9| 10.3) 11.8) 8.8)

12484

10

13

14

16

14

12943

11

I

I 

2J 124

t 

4| 10

I 

8| 4

I 

6| 11

I 

6| 12

I 

41

I

! DEC 

I '79

__|______ \

I 

.51 124.8 I

I J-.

9!

I 

81

I 

21

81

I 

6!

01

31 

_JL

17

15

128865

11

.31

! 

.6!

I 

.2!

I 

.91

I 

.21

I 

.01

I 

.71

I 

.31

I 

.61

I 

.91

1 

.21

I 

.61

13.9

6. 1

9.2

10.5

15.9

13.5

9.5

10.8

8.8

6.3

4.1

16.2

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 30. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY COUNTS OF VEHICLES BY DOLLAR EXPENDITURES FOR 1980

VO

EXPENDITURES

$0... .....

$10.00 OR

$10.01 TO

$20.01 TO

$30.01 TO

$40.01 TO

$50.01 TO

$60.01 TO

J70.01 TO

$80.01 TO

$90.01 TO

$100.01 OP

$40.00..........

$70.00..........

MDC c.

1

JAK I 

•80 I 

1

1 

1 

125.21

1 

13.11

1 

4.6 I

1 

10.51

1 

13.9|

1 

14.0)

1 

12.31

1 

13. 9|

1 

10.8|

1 

7.01

1

6.4)

1 

3.8|

1 

14.81

1

1 

FEB 1 

•80 I

1 

1 

125.51

1 

10.4|

1 

3.7|

1

9

f, \

1 

12.51

1 

15.11

1

15.0!1

13.81

1 

10.11

1

8.6|

1

6.21

1 

4.21

1 

16.6|

1

MAR • 80

125.7

8 A

3.6

9 <)

10.1

12.1

1 L. I*

13.4

13.3

8.3

7.7

6. C

18.4

f

APR •80

126.2

I Q f.

3.3

10.6

10.9

1 16.5

I 12.4

1 12.7

1 11.2

I Q L.

1 

1 8.8

1 5.4

I 15.6

MILLIONS OF VEHICLES BY MONTH

I III 1 

MAY I JUN JUL | AUG I SEP 1 OCT NOV I DEC 

•80 I «80 '80 | «80 1 «ao 1 '80 • 80 I • 80 

L 1 1 1 I 1 _, 1 _ J

1 111 1 

1 III 1 

126.7| 126.9| 127.21 127.61 128.0) 128.01 128.41 128.8

1 f 1 1 1 1 1 

9.71 10.31 9.0| 9.2] 8.3! 9.0| 8.7| 9.8

1 1 1 1 1 1 1 

1 2.6| 4.11 3.21 3.1! 4.61 3.0| 2.91 3.6

1 1 1 1 1 1 1 

1 10.61 11.21 10.51 11.81 12.81 11.2! 11.31 10.1

1 1 1 1 1 1 1 

12.11 15.81 14.91 ll.8| 12.21 11.11 11. 9| 13.5

1 1 1 I I 1 I 1 

I 15.11 13.91 10.71 12.51 17.31 16. 4| 12.81 12.0

1 1 1 1 1 I 1 

I 13.6) 11.7) 12.2! 13.5) 12.41 14.2! 1«5.7| 12.8

1 1 1 1 1 1 1 

1 12.21 11.01 14.41 14.11 12.31 12.51 13.31 11.0

1 1 1 1 1 1 1 

I 11.31 10.4| 10.4J 11.01 10.11 10.31 10.11 11.6

1 1 1 1 1 1 1 

1 10.11 6.8| 7.5| 7.21 8.4| 9.9| 9.31 9.0

1 ! 1 1 1 1 1 

1 6.7| 7.0| 5.8| 6.5| 8.6| 7.2! 6.4| 6.2

1 1 1 1 1 I 1 

I 5.6| 5.3| 5.41 4.7| 4.31 4.5| 5.5! 6.0

1 II!!! 

1 17.11 19.31 23.21 22.11 16. 6| 19. 6| 20.71 23.2

L 1 1 1 1 11 1 .

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
The Following Tables Present Data 

on the Relative Standard Errors
TABLE 31. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY TOTALS FOR JUNE 1979 TO DECEMBER 1979: 

RELATIVE STANDARD ERRORS (PERCENTS)

OTALS

S DRIVEN (BILLIONS)......,

1 

1

1

1 1 

1 JUN I 

1 '79 I 

I I

....... 3.6

MONTH

1 

JUL I 

•79 1

2.8

AUG 

•79

3.

1 

1 SEP 

1 '79 

i

4 3

I 1 

1 OCT I 

1 '79 | 

1 I

.7 3.7

NOV •79

?

I DEC 

I '79

EXPENDITURES (BILLIONS OF DOLLARS* 

ALL FUELS.........................

LEADED FUELS....................

UNLEADED FUELS..................

UNKNOWNt OTHERt t DIESEL FUELS..

GALLONS PURCHASED (BILLIONS)

ALL FUELS.........................

LEADED FUELS....................

UNLEADED FUELS..................

UNKNOWN, OTHER, £ DIESEL FUELS..

NUMBER OF HOUSEHOLDS (MILLIONS)

WITH VEHICLES..................

NUMBER OF VEHICLES (MILLIONS).

DRIVEN 100 MILES OR LESS....

DRIVEN MORE THAN 100 MILES..

3.2

5.5

6.7

28.7

3.1

5.4

6.8

27.6

0.0

0.0

12.3

1.5

2.8

5.2

6. 1

14.3

2.7

5.2

6. 1

14.3

0.0

0.0

10.7

1.3

2.9

7.6

8.2

27.7

2.9

7.6

8.1

27.0

0.0

0.0

14.9

1.4

3.6

7.3

7.4

22.2

3.4

7.2

7.3

21.4

0.0

0.0

15.2

1.4

3.4 2.R

6.1 6.9

5.7 6.4

22.6 20.4

3.3 2.6

6.1 6.8

5.7 6.6

22.5 20.5

0.0

0.0

14.1

1.3

0.0

0.0

11.9

1.4

I TOTAL 

I

I

3.5

3.3

5.8

6.2

19.4

3.3

5.7

6.2

19.6

0.0

0.0 

9.8 

1.5

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

1.8

1.7

3.6

4.2

12.0

1.6 

3.6

11.6
TABLE 32. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY TOTALS FOR 1980: 

RELATIVE STANDARD ERRORS IPERCENTS)

MONTH

1 1 1 1 1

JAN I FEB I MAR I APR I MAY I 

•80 1 ' 80 I • 80 I '80 1 • 80 I 

1 - 1 1 1 , I

JUN •80

1 

1 

1 

1

! 

JUL I 

•80 I 

-i.

AUG •80

1 

1 SEP 

1 '80

1 

1 OCT 

1 «80 

-L___

! ! 

1 NOV I DEC 

1 '80 1 "80 

1 1

TOTAL

U.S. TOTALS

to

EXPENDITURES (BILLIONS OF DOLLARS)

ALL FUELS.........................

LEADED FUELS....................

UNLEADED FUELS. .................

UNKNOWN, OTHER, £ DIESEL FUELS..

GALLONS PURCHASED (BILLIONS)

ALL FUELS .........................

LEADED FUELS....................

UNLEADED FUELS. .................

UNKNOWN, OTHER, 5 DIESEL FUELS..

NUMBER OF HOUSEHOLDS (MILLIONS)

NUMBER OF VEHICLES (MILLIONS).......

DRIVEN MORE THAN 100 MILES........

2.8

4.6

6.1

19.6

2.8

4.7

6.2

19.5

0.0

0.0

8.3

1.3

3.1

5.2

5.6

16.8

3.1

5.3

5.5

16.9

0.0

0.0

9.4

1.3

3.0 2.5 2.6 3.1 2.5 2.6 2.8 3.0 3.4

SOURCE: HOUSEHOLD TRANSPORTATION PANELt RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

3.1

2.5

5.4

4.8

16. C

2.6

5.5

4.7

16.1

0.0

0.0

9.6

0.?

2. 1

5.9

5.4

18.3

2.0

6.0

5.3

18.3

0.0

0.0

9.9

1.2

2.5

6.3

6.0

14.4

2.5

6.4

6.0

14.3

0.0

0.0

12.4

1.3

3.6

6.5

5.6

17.0

3.4

6.0

5.6

17.6

0.0

0.0

10. I

1.2

2.2

4.7

5.0

13.3

2.1

4.7

5.0

13.3

0.0

0.0

10.2

l.l

2.5

5.5

4.7

16.7

2.5

5.5

4.7

16.5

0.0

0.0

10.6

1.2

2.9

6.1

5.4

19.2

2.9

5.9

5.4

19.2

0.0

0.0

13.1

1.3

3.2

6.1

6.3

17.5

3.2

6.0

6.2

17.6

0.0

0.0

12.0

1.3

3.7

7.8

6.0

15.7

3.9

8.0

6.0

15.8

0.0

0.0

10.7

1.1

3.0

5.7

6.5

18.4

3.1

5.8

6.5

18.0

0.0

0.0

10.6

1.2

1.4

1.2 

2.8 

2.6 

5.8

1.2 

2.8 

2.5 

5.8
TABLE 33. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY AVERAGES FOR JUNE 1979 TO DECEMBER 1979: 

RELATIVE STANDARD ERRORS IPERCENTS)

MONTH

AVERAGES PER VEHICLE

GALLONS PURCHASED...........

GALLONS CONSUMED............

MILES DRIVEN................

FUEL INVENTORY AS A PERCENT

FUEL TANK CAPACITY (GALLONS 1 

AVERAGES PER GALLON 

PRICE <CENTS PER GALLON)

Al 1 FIIFI <;

PRFMI 1IM

no cu f 1 JM

UNKNOWN...............

UNKNOWN, OTHER. £ DIESEL 

MILES PER GALLON............

JUN 

•79

........ 3.

........ 3.

........ 3.

........ 2.

........ I.

........ 0.

........ 0.

........ 0.

........ I.

........ NA

........ 0.

........ 0.

........ 1.

........ 1.

FUELS.. 2. 

........ 2.

1 

1

I 

1

1 

2 

6 

2

2 

4

5 

5 

5 

3

5 

5 

I

4 

4

0

JUL •79

2. 

2. 

2. 

2.

1.

1.

0. 

0. 

0. 

0. 

NA 

0. 

0. 1.

0.

0.

1.

1 1 1 1

7 

7 

8 

8

1

2

4 

5

5 

6

5 

5 

4 

6

8

4

I 1 

AUG I SEP I 

•79 I '79 | 

__ __ 1_ 1

2.9 

3.0 

3.4 

2.9

1.1

1.7

0.4 

0.5 

0.5 

0.9 

NA 

0.5 

0.6 

1.5 

1.0 

1.4

2.6

3.4 

3.5 

3.7 

3.6

1.6 

1.8

0.4 

0.4 

0.4 

2.2 

NA 

0.4 

0.5 

1.1 

1.0 

1.7

2.2

1 

OCT I 

•79 I

3.3 

3.2 

3.7 

3.4

1.2 

1.2

0.4 

0.5 

0.4 

1.2 

NA 

0.4 

0.4 

1.0 

0.6 

0.7

1.8

NOV

•79

2. 

2. 

2. 

2.

1. 

1.

0. 

0. 

0. 1.

5. 

0. 

0. 

1.

0. 1. 

1.

1 1 1 _i6 

6 

8 

8

1 

1

4 

5 

5

1 

I 

5 

7 

1 

8 

9

5

AVERAGE

DEC •79 

____!_

3.3 

3.2 

3.5 

3.3

1.9 

1.7

0.5 

0.4 

0.4 

0.8 

NA 

0.5 

0.4 

0.9 

2.1 

7.6

1.6

MONTH

1.6 

1.7 

1.8 

1.7

0.8 

0.9

0.3 

0.3 

0.3 

0.7 

5.5 

0.4 

0.3 

0.7 

0.8 

0.9

l.l

NA = NOT AVAILABLE

SOURCE: HOUSEHOLD TRANSPORTATION PANELi RESIDENTIAL ENERGY CONSUMPTION SURVEYt

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION.

OFFICE OF ENERGY MARKETS AND END USE.

ENERGY INFORMATION ADMINISTRATION.
TABLE 3*. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY AVERAGES FOR 1980: 

RELATIVE STANDARD ERRORS (PERCENTS)

AVERAGES PER VEHICLE

1

JAN 1 FEB 

•80 1 '80 

1

1 I 

1 MAR 1 

1 •SO 1 

1 , 1

APR 

•80

1

I HAY 

1 «80 

_1_

1 

1 

1

1

MONTH

1 1

JUN 1 JUL t 

•80 I »80 I 

JL -L

AUG •80

1

1 SEP 

1 '80 

J

1 I 

1 OCT ! 

1 '80 1 

1 \

1

MOV I DEC 

•80 | «80

1

AVERAGE

MONTH

,

GALLONS PURCHASED...................

GALLONS CONSUMED....................

MILES DRIVEN........................

EXPENDITURES (DOLLARS) ..............

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY...................

FUEL TANK CAPACITY f GALLONS) ........

AVERAGES PER GALLON

PRICE (CENTS PER GALLON)

ALL FUELS .........................

LEADED FUELS....................

REGULAR.. .....................

UNLEADED FUELS. .................

REGULAR.......................

UNKNOWN, OTHER, £ DIESEL FUELS..

2.8

2.7

3.5

2.8

1.4

1.3

0.4

0.4

0.4

0.8

NA

0.5

0.5

1.1

0.8

4.4

1.7

3.1

3.2 

3.5 

3.1

1.3 

1.2

0.4 

0.5 

0.4 

1.0 

3.4 

0.5 

0.4 

1.3 

0.6 

0.9

1.8

2.6 

2.5

3.0 

2.5

1.4 

1.2

0.4

0.4

0.5

1.0

NA

0.4

0.5

0.7

0.8

0.9

1.8

2.0

2.2

2.5

2.1

1.1

1.1

0.4

0.4

0.4

0.6

11.9

0.4

0.4

l.l

0.5

3.7

1.7

2.5

2.5

2.6

2.5

1.3

1.1

0.3

0.4

0.4

0.8

NA

0.4

0.4

0.9

0.7

1.2

1.4

3.4 

3.3 

3.1 

3.6

1.1

1.2

0.5

1.0

1.0

1.0

NA

0.3

0.3

1.3 

0.6

1.4

1.6

2.1

2.1

2.5

2.2

1.4

0.9

0.3

0.4

0.4

1.0

11.9

0.3

0.4

0.8

0.6

1.0

1.5

2.5

2.5

2.6

2.5

1.7

1.0

0.3

0.5

0.4

1.0

12.1

0.3

0.3

0.6

0.8

1.1

1.3

2.9

2.8

2.8

2.9

1.7 

1.1

0.4 

0.6 

0.4 

1.1 

3.0 

0.3 

0.4 

0.9 

0.5 

1.3

1.3

3.2

3.2

3.0

3.2

1.4

1.2

0.4

0.4

0.4

1.6

3.5

0.4

0.5

0.9

0.6

1.6

1.7

3.9

3.8

3.4

3.7

1 .0

l v2

0.4

0.5

0.5

1.6

12.4

0.4

0.5

1.2

0.5

0.9

1.4

3.1

3.1

3.1

3.0

1.2

1.3

0.4

0.4

0.4

1.2

2.2

0.4

0.5

0.7

0.7

1.0

1.5

1.2 

1.2 

1.4 

1.2

0.7 

0.6

0.2 

0.3 

0.3 

0.4 

1.5 

0.2 

0.2 

0.4 

0.3 

0.5

0.9

NA = NOT AVAILABLE

SOURCES HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY,

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION,

OFFICE OF ENERGY MARKETS AND END USE,

ENERGY INFORMATION ADMINISTRATION.
TABLE 35. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR JUNE 1979 TO DECEMBER 1979 BY VEHICLES RANKED BY MPGt 

RELATIVE STANDARD ERRORS (PERCENTS)

AVERAGES PER VEHICLE

TOTAL

I

ONE

VEHICLE 

HOUSEHOLDS

TWO VEHICLE 

HOUSEHOLDS

I

#1 I #2 

VEHICLE I VEHICLE

________1_______

THREF OR MORF

VEHICLE 

HOUSEHOLDS

I ! ! 

#1 I *2 I *3 I OTHER 

VEHICLE I VEHICLE I VEHICLE 1 VEHICLES 

.________L_________I_________J________-

•c*

171

GALLONS PURCHASED............

GALLONS CONSUMED.............

MILES DRIVEN.................

EXPENDITURES CDOLLARS).......

FUEL INVENTORY AS A PERCENT 

OF TANK CAPACITY............

FUEL TANK CAPACITY JGALLONS).

AVERAGES PER GALLON

PRICE ICENTS PER GALLON!

ALL FUELS..................

MILES PER GALLON.............

1.6

1.7

1.8 

1.7

0.8 

0.9

0.3

1.1

3.3

3.3

3.4

3.5

1.2

1.3

0.5

1.9

2.6 

2.6 

2.9 

2.6

1.0 

1.3

0.4

1.6

3. 1 

3.2 

3.2 

3.2

1.1

0.4

1.7

THE #1 VEHICLE HAS THE HIGHEST MPG f THE *2 VEHICLE THE NEXT HIGHEST MPG, ETC. 

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

3.3

3.4 

3.1

3.6

2.8 

2.1

0.6 

2.6

3.5

3.6 

3.8 

3.6

1.3 

1.9

0.7 

2.6

9.0 

8.8 

7.1 

8.6

2.1

0.9

18.0

18.4

19.7

18.3

5.6 

4.5

2.0 

4.2
TABLE 36. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR 1980 BY VEHICLES RANKED BY MPGt 

RELATIVE STANDARD ERRORS IPERCENTSI

AVERAGES PER VEHICLE

TOTAL

ONE 

VEHICLE I.

HOUSEHOLDS! 

I

TWO VEHICLE 

HOUSEHOLDS

If 2

I VEHICLE I VEHICLE

*1 

VEHICLE

THREE OR MORE

VEHICLE 

HOUSEHOLDS

#2 

VEHICLE

I

I #3 

I VEHICLE

I OTHER 

I VEHICLES

GALLONS PURCHASED............

GALLONS CONSUMED.............

MILES DRIVEN.................

EXPENDITURES (DOLLARS).......

FUEL INVENTORY AS A PERCENT 

OF TANK CAPACITY............

FUEL TANK CAPACITY (GALLONS).

AVERAGES PER GALLON

PRICE I CENTS PER GALLON)

ALL FUELS..................

MILES PER GALLON.............

1.2 

1.2 

1.4 

1.2

0.7 

0.6

0.2

0.9

2.4 

2.4 

2.8 

2.4

1.1 

1.0

0.3

1.3

2.0 

2.0

1.9

2.0

0.9 

1.2

0.3

1.3

2.2 

2.2 

2.4 

2.2

1.0 

0.9

0.3

1.2

THE *1 VEHICLE HAS THE HIGHEST MPG, THE *2 VEHICLE THE NEXT HIGHEST MPG, ETC. 

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

2.9 

2.9 

2.8 

2.8

1.0 

1.5

0.4 

1.8

3.2 

3.2 

3.2 

3.1

1.4 

1.4

0.5 

1.9

5.3 

5.3 

5.9 

5.2

1.6

2.0

0.5 

1.7

12.8

12.7

12.1

12.6

4.2 

2.9

0.8 

2.3
TABLE 37. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR JUNE 1979 TO DECEMBER 1979 BY 

VEHICLES RANKED BY NILES TRAVELED! RELATIVE STANDARD ERRORS (PERCENTS)

AVERAGES PER VEHICLE

TOTAL

ONE

VEHICLE 

HOUSEHOLDS

TWO VEHICLE 

HOUSEHOLDS

VEHICLE

I #2 

I VEHICLE

THREE OR MORE

VEHICLE 

HOUSEHOLDS

*1 I 

VEHICLE I

#2 

VEHICLE

I

! #3 

I VEHICLE

I______

I OTHER 

I VEHICLES

GALLONS PURCHASED............

GALLONS CONSUMED.............

MILES DRIVEN.................

EXPENDITURES (DOLLAKS).......

FUEL INVENTORY AS A PERCENT 

OF TANK CAPACITY............

FUEL TANK CAPACITY (GALLONS).

AVERAGES PER GALLON

PRICE I CENTS PER GALLONl

ALL FUELS..................

MILES PER GALLON.............

1.6

1.7

1.8 

1.7

0.8 

0.9

0.3 

1.1

3.3

3.3

3.4

3.5

1.2

1.3

0.5 

1.9

2.8 

2.7 

2.9 

2.8

0.9 

1.3

0.3 

1.5

2.5

2.6 

2.8 

2.5

1.3

0.4 

1.8

3.6 

3.5 

2.8 

3.5

1.3 

2.4

0.6 

2.4

3.5 

3.5 

4.2 

3.6

1.8 

1.6

0.6 

2.3

THE #1 VEHICLE HAS THE HIGHEST MILES TRAVELEDi THE #2 VEHICLE THE NEXT HIGHEST MILES TRAVELED, ETC. 

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

6.8 

6.4 

6.7 

7.1

3.6 

2.0

0.8 

2.4

16.2

16.7

16.7

17.1

7.2 

4.2

1.7 

4.4
TABLE 38. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR 1980 BY VEHICLES RANKED BY MILES TRAVELED: 

RELATIVE STANDARD ERRORS IPERCENTSI

AVERAGES PER VEHICLE

1

I

I TOTAL

I

I

TWO VEHICLE 

HOUSEHOLDS

ONE 

VEHICLE

1

HOUSEHOLDSl

I

I VEHICLE 

J

I f2 

I VEHICLE

I

*l I

VEHICLE |

______I

THREE OR MORE

VEHICLE 

HOUSEHOLDS

#2 

VEHICLE

I

I #3 

I VEHICLE

I OTHER 

I VEHICLES

GALLONS PURCHASED............

GALLONS CONSUMED.............

MILES DRIVEN.................

EXPENDITURES (DOLLARS).......

FUEL INVENTORY AS A PERCENT 

OF TANK CAPACITY............

FUEL TANK CAPACITY (GALLONS).

AVERAGES PER GALLON

00 PRICE (CENTS PER GALLON)

ALL FUELS..................

MILES PER GALLON.............

1.2 

1.2 

1.4 

1.2

0.7 

0.6

0.2 

0.9

2.4 

2.4 

2.8 

2.4

1.1 

1.0

0.3 

1.3

1.7 

1.7

1.6

1.7

0.8 

1.1

0.3 

1.2

2.3 

2.2 

2.4 

2.3

1.1 

1.0

0.3 

1.4

2.9

3.0 

2.5 

2.8

0.9 

1.8

0.4 

2.1

2.6 

2.6 

3.0 

2.6

1.5 

1.2

0.4 

1.4

THE #1 VEHICLE HAS THE HIGHEST MILES TRAVELED, THE #2 VEHICLE THE NEXT HIGHEST MILES TRAVELED, ETC. 

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

4.5 

4.5 

5.0 

4.4

1.7 

1.7

0.5 

2.0

13.0

14.4

13.0

13.2

4.3 

2.7

0.6 

3.3
TABLE 39. U.S. HOUSEHOLD TRANSPORTATION DATA - 

RELATIVE STANDARD ERRORS IPERCENTSI

TOTALS FOR JUNE 1979 TO DECEMBER 1979 BY VEHICLE CHARACTERISTICS*

vO

U.S. TOTALS

MILES DRIVEN (BILLIONS)

EXPENDITURES (BILLIONS OF DOLLARS) 

ALL FUELS........................

LEADED FUELS...................

UNLEADED FUELS.................

UNKNOWN, OTHER, £ DIESEL FUELS.

TOTAL

VEHICLE SIZE

_ .

F

U

L

L

S

I

z

E

I

N

T

E

R

M

E

D

I

A

T

E

C

0

M

P

A

C

T

S

U

B

C

0

M

P

A

C

T

0

T

H

E

R

U

N

K

N

n

w

N

MODEL YEAR

1975

TO

1980

1970

TO

1974

|

I 1 1 1 1 1 I

1960

AND,

EARLIER

UNKNOWN

1

GALLONS PURCHASED (BILLIONS)

ALL FUELS........................

LEADED FUELS...................

UNLEADED FUELS.................

UNKNOWN, OTHER, £ DIESEL FUELS.

NUMBER OF VEHICLES (MILLIONS),

1.7

3.6

4.2

12.0

1.6

3.6

4.1

11.6

0.0

5.2

7.1

7.6

16.0

5.1

7.0

7.6

16.0

5.2

7.7

7.7

16.7

5.2

7.9

7.6

16.1

5.2

8.7

7.0

22.7

5.2

8.7

6.9

22.9

6.6

6.2

10.1

24.5

6.4

6.1

9.9

23.6

7.3

11.9

20.0

26.8

7.7

12.1

20.6

27.0

8.5

9.1

14.4

33.9

8.3

9.1

14.1

32.2

2.9 4.0 7.3

7.4 4.7 7.3

4.4 10.8 19.0

17.0 12.9 21.7

2.9 3.9

7.6

4.3

16.2

4.7

11.0

12.7

4.5 4.7 4.8 5.3 4.8 6.4 2.5 2.7

7.2

7.3

18.9

21.7

5.5

58.8

64.1

75.2

NA

58.1

63.0

75.0

NA

46.3

NA = NOT AVAILABLE

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY,

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION,

OFFICE OF ENERGY MARKETS AND END USE,

ENERGY INFORMATION ADMINISTRATION.
TABLE 4O. U.S. HOUSEHOLD TRANSPORTATION DATA - 

RELATIVE STANDARD ERRORS CPERCENTS)

TOTALS FOR 1980 BY VEHICLE CHARACTERISTICS:

TOTAL

VEHICLE SIZE

F

U

L

L

c

1

z

E

J 1

I

N

T

E

R

M

E

0

I

A

T

E

C

0

M

P

A

C

T

S

U

B

C

0

M

P

A

C

T

0

T

H

E

R

1 1 i

U

N

K

N

0

W

N

MODEL YEAR

1975

TO

1961

1970

TO

1974

1960

AND

EARLIER

!

UNKNOWN

1 1

U.S. TOTALS

MILES DRIVEN (BILLIONS). 3.9 4.4 4.3 5.7 5.1 5.4 2.6 3.3 6.4

(Ji 

o

EXPENDITURES (BILLIONS OF DOLLARS) 

ALL FUELS........................

LEADED FUELS...................

UNLEADED FUELS.................

UNKNOWN, OTHER. C DIESEL FUELS.

GALLONS PURCHASED (BILLIONS)

ALL FUELS........................

LEADED FUELS...................

UNLEADED FUELS.................

UNKNOWN, OTHER, £ DIESEL FUELS.

NUMBER OF VEHICLES (MILLIONS).

1.2 

2.8 

2.6

5.8

1.2

2.8 

2.5 

5.8

0.0

3.8

5.6

5.6

8.9

3.7

5.6

5.5

8.9

4.4

6.6

5.4

14.5

4.4

6.4

5.4

14.4

4.0

6.4

5.3

12.4

3.9

6.4

5.3

12.3

5.7

5.6

7.2

15.2

5.5

5.5

7.1

14.7

5.3

6.3

8.9

15.9

5.4

6.3

8.9

15.9

5.6

6.6

9.6

14.4

5.6

6.6

9.6

14.4

2.4 3.2 6.6

5.7 3.6 6.9

2.7 9.9 15.2

11.0 7.8 16.5

3.2 3.2 3.5 5.0 3.9 4.6

2.4

5.8

2.7

10.7

2.4

3.2

3.6 

9.8

7.8

2.2

6.5

6.8

15.2

16.7

5.3

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

30.5

28.5

60.0

27.6

53.2

28.3

58.9

27.5

53.2

29.4
TABLE 41. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR JUNE 1979 TO DECEMBER 1979 BY VEHICLE CHARACTERISTICS: 

RELATIVE STANDARD ERRORS I PERCENTS»

TOTAL

. _.

F

U

L

L

S

I

Z

E

1 _______

I

N

T

E

R

M

E

D

I

A

T

E

l_ -

VEHICL1

C

0

M

P

A

C

T

_.

: SIZE

S

U

B

C

0

M

P

A

C

T

. ______

0

T

H

E

R

L_. .„„__]

u

N

K

N

0

W

N

1975

TO

1981

.

MOOEI

1970

TO

1974

. YEAR

1960

AND

EARLIER

_______

UNKNOWN

______

AVERAGES PER VEHICLE

GALLONS PURCHASED...........

GALLONS CONSUMED............

MILES DRIVEN................

EXPENDITURES (DOLLARS)......

FUEL INVENTORY AS A PERCENT 

OF TANK CAPACITY.... .......

FUEL TANK CAPACITY (GALLONS). 

AVERAGES PER GALLON

PRICE (CENTS PER GALLON)

ALL FUELS..................

MILES PER GALLON.

1.6

1.7

1.8 

1.7

0.8 

0.9

0.3 

1.1

3.1

3.2

3.7 

3.2

0.9 

0.5

0.5 

1.2

2.6 

2.6 

2.9 

2.8

1.6

0.8

0.5 

1.1

3.3

3.2

3.3

3.4

1.2

0.8

0.4 

1.5

2.8 

2.7 

3.1 

3.0

1.1

1.0

0.5 

1.8

6.1 

6.0 

5.2 

5.7

2.0 

3.5

0.9 

3.4

NA = NOT AVAILABLE

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY,

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION,

OFFICE OF ENERGY MARKETS AND END USE,

ENERGY INFORMATION ADMINISTRATION.

5.3 

5.3 

4.9 

5.7

1.9 

2.1

0.6 

2.2

2.0

2.1 

1.9 

2.1

0.7 

1.2

0.4 

1.4

2.9 

2.9 

2.6

3.0

1.1

1.2

0.4 

1.3

4.5 

4.4 

3.9 

4.7

2.5 

1.7

0.6

2.6

40.0

37.3

45.8

40.5

35.5

33.0

NA 

26.6
TABLE 42. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR 1980 BY VEHICLE CHARACTERISTICS: 

RELATIVE STANDARD ERRORS (PERCENTSI

AVERAGES PER VEHICLE

TOTAL

-„— -_.

F

U

L

L

S

I

z

E

L J

I

N

T

E

R

M

E

0

I

A

T

E

I

VEHICL!

C

0

M

P

A

C

T

L __ J

I SIZE

S

U

B

C

0

M

P

A

C

T

L _____ 1

0

T

H

E

R

L _ __J

u

N

K

N

0

M

N

1975

TO

1981

L_ J

HOD El

1970

TO

1974

L___

. YEAR

1960

AND

EARLIER

L

UNKNOWN

Ul

GALLONS PURCHASED................

EXPENDITURES (DOLLARS) ...........

FUEL INVENTORY AS A PERCENT

AVERAGES PER GALLON

PRICE (CENTS PER GALLON)

1.2

1.2

1.4

1.2

0.7

0.6

0.2

0.9

1.8

1.8

2.2

1.9

1.2

0.3

0.4

0.9

2.5

2.6

2.8

2.6

1.0

0.4

0.3

0.9

1.8

1.8

2.2

1.7

0.8

0.6

0.3

1.1

2.2

2.1

2.2

2.4

0.8

0.8

0.3

1.0

3.4

3.3

3.1

3.3

1.4

1.6

0.4

1.4

4.4

4.4

4.3

4.5

1.6

1.5

0.4

2.1

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND ENO USE, 

ENERGY INFORMATION ADMINISTRATION.

1.5 

1.5 

1.5 

1.5

0.6 

0.9

0.2

1.0

2.1 

2.1 

2.4 

2.1

0.9 

0.9

0.3

0.9

3.6 

3.7 

3.6 

3.7

1.8 

0.8

0.4

1.5

23.3 

23.3 

24.3 

23.1

5.4 

7.7

1.3

6.5
TABLE 43. U.S. HOUSEHOLD TRANSPORTATION DATA - TOTALS FOR JUNE 1979 TO DECEMBER 1979 BY GEOGRAPHIC LOCATION: 

RELATIVE STANDARD ERRORS CPERCENTS)

Ul 

U)

UNITED STATES

_L

T 

0 

T 

A

L

U.S. TOTALS

MILES DRIVEN (BILLIONS)............. 1.8

EXPENDITURES (BILLIONS OF DOLLARS) 

ALL FUELS......................... 1.7

LEADED FUELS.................... 3.6

UNKNOWN, OTHER, 6 DIESEL FUELS.. 12.0 

GALLONS PURCHASED (BILLIONS!

UNKNOWN, OTHER, £ DIESEL FUELS.. 11.6 

NUMBER OF HOUSEHOLDS (MILLIONS)

U 

R 

B 

A 

N

5.4

5.2 

5.6 

6.5 

15.5

5.2 

5.7 

6.5 

15.2

4.3 

4.7

R ____ 

U 

R T 

A 0 

L T 

A 

L

11.6 8.5

11.5 9. 1 

14.4 10.9 

10.4 10.8 

26.8 15.8

11.5 9. 1 

14.4 11. 0 

10.3 10.7 

25.6 16.2

10.7 7.7 

1 1. I 8.7

NORTHEAST

U 

P 

B 

A

N

11.5

10.6 

10.9 

12.2 

20.6

10.6 

10.9 

12.1 

20.7

9.9 

10.3

R 

U 

R 

A 

L 

, 1.

30.4

32.5 

38.6 

31.3 

54.3

32.6 

38.6 

31.5

53.5

26,7 

27.5

CENSUS

NORTH CENTRAL

1 

T I U R 

0 I R U 

TIB R 

A | A A 

L I N L 

_ ,,1 ..,!.. ,,. 1

6.6 9.5 20.9

6.8 10.6 21.1 

9.2 12.3 32.1 

7.2 10.1 15.1 

17.9 28.1 23.1

6.9 10.6 21.9 

9.5 12.4 32.8 

6.9 10.0 15.7 

17.5 28.1 23.0

7.4 8.7 23.8 

7.4 9.5 26.1

REGIONS

T 

0 

T 

A 

L 

_J

7.7

7.1 

8.4 

9.9 

14.6

7.0 

8.3 

9.9 

14.5

5.7 

5.7

SOUTH

U

R 

B 

A 

N

L _i

9.7

8.7 

9.1 

12.6 

19.0

8.8 

9.1 

12.7 

18.4

7.5 

8.0

R 

U 

R 

A 

L

18.3

17.5 

21.4 

17.0 

19.4

17.6 

21.4 

17.0 

20.0

14.9 

16.?

1 

1 

i

1 

f T

I 0 

! T 

1 A 

1 L

1,., ...

13.1

12.9 

15.4 

19.1 

40.5

13.0 

15.7 

18.8 

40.5

10.3 

10.3

WEST

U 

R 

B 

A 

N

17.5

17.3 

14.2 

25.2 

42.2

17.0 

14.2 

24.9 

42.4

13.3 

14.4

R 

U 

R 

A 

L

49.7

48.3 

44.5 

42.4 

94.3

48.8 

44.5 

43.8 

94.2

46.4 

45.9

SOURCE: HOUSEHOLD TRANSPORTATION PANELt RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 44. U.S. HOUSEHOLD TRANSPORTATION DATA - TOTALS FOR 1980 BY GEOGRAPHIC LOCATION! 

RELATIVE STANDARD ERRORS CPERCENTSI

UNITED STATES

.--

T 

0

T 

A

L

U 

R 

B 

A

N

R 

U 

R 

A 

L

J

CENSUS REGIONS

,_ 

NORTHEAST

T 

0

1

A

L

U 

R 

B 

A

N

R 

U 

R 

A 

L 

,.,,,.

NORTH CENTRAL

T 

0 

T 

A

. ____

U 

R 

B 

A 

N

L ___ J

R 

U 

R 

A

L

SOUTH

T 

0 

T 

A 

I

U 

R 

B 

A 

N

R 

U 

R 

A 

L

WEST

0 

T

A 

L

U 

R 

B 

A

N

R

U 

R 

A

L 

L

U.S. TOTALS

U1

EXPENDITURES (BILLIONS OF DOLLARS)

ALL FUELS.........................

LEADED FUELS....................

UNKNOWN, OTHER, C DIESEL FUELS..

GALLONS PURCHASED (BILLIONS)

LEADED FUELS....................

UNKNOWN, OTHER, £ DIESEL FUELS..

NUMBER OF HOUSEHOLDS (MILLIONS)

NUMBER OF VEHICLES (MILLIONS).......

i.

1.

2.

2.

5.

1.

2.

2.

5.

1.

0.

•»

2

8

6

8

2

8

5

8

3

0

4.

4.

5.

5.

8.

4.

5.

5.

8.

4.

4.

V

5

1

1

3

5

1

1

4

4

5

IU

10

11

9

17

10

11

9

.1

.0

.4

.8

.0

.0

.4

.9

16.7

8

9

.9

.4

V. U

7.7

9.6

8.6

21.2

7.8

9.7

8.6

20.8

7.7

8.0

11

10

12

10

18

10

12

10

18

9

10

• V

.1

.0

.8

.2

.3

.2

.9

.4

.8

.6

JU.1

29.4

31.9

27.4

53.9

29.2

31.8

27.0

53.5

26.1

25.4

3. O

5.6

9.3

5.3

11.0

5.9

9.6

5.4

10.9

5.2

5.7

8.5 20.5 6.5 8.1 17.3 8.0 12.7 33.3

7.8

9.1

8.5

17.6

7.8

9.0

8.6

17.6

8.0

7.9

20.7

25.2

19.0

23.6

21.2

25.8

19.3

24.0

20.1

22.9

5.1

5.4

6.6

11.4

5.1

5.4

6.6

11.5

5.2

5.3

6.5 16.9

7.6 16.9

7.8 17.8

14.5 28.4

6.5 16.9

7.5 17.1

7.7 17.9

14.8 28.4

7.5 13.8

7.5 14.3

8.6 17.5 34.9

9.8 12.5 38.5

15.8 27.0 29.7

9.3 8.3 39.7

8.4 16.5 34.8

19.0 11.7 38.6

15.4 26.1 29.5

8.6 7.9 37.0

7.0 10.4 35.2

7.1 11.0 34.6

SOURCES HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 45. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR JUNE 1979 TO DECEMBER 1979 BY GEOGRAPHIC LOCATION: 

RELATIVE STANDARD ERRORS (PERCENTSI

AVERAGES PER VEHICLE

UNITED STATES

T 

0 

T 

A 

L

U 

R 

B 

A 

N

R 

U 

R 

A

L

CENSUS REGIONS

NORTHEAST

T 

0 

T 

A 

L

L_ _J

u

R 

8 

A

N

R 

U

R 

A

L

NORTH CENTRAL

„_ -

0 

Y

A 

L

L__ J

1

U I R 

R 1 U 

B 1 R 

A I A 

N I L

L __1_ J

SOUTH

.

T 

0

•y

L

U 

R 

B 

A

N

L_ J

R 

U

R 

A 

L

L__ ^

WF.S

T 

3 

T

A 

L

U 

R 

B 

A

N

R 

U 

R 

A 

L

|_

in

GALLONS CONSUMED ....................

EXPENDITURES (DOLLARS).... ..........

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY...................

FUEL TANK CAPACITY 1 GALLONS )........

AVERAGES PER GALLON

,

PRICE 1 CENTS PER GALLON)

LEADED FUELS....................

REGULAR.......................

UNKNOWN.......................

REGULAR.......................

PREMIUM.......................

UNKNOWN.......................

UNKNOWN, OTHER, S DIESEL FUELS..

MILES PER GALLON....................

1.6

1.7

1.8

1.7

0.8

0.9

0.3

0.3

0.3

0.7

5.5

0.4

0.3

0.7

0.8

0.9

1.1

1.7

1.7

2.0

1.8

0.9

1.2

0.3

0.4

0.3

0.9

5.2

0.4

0.4

0.7

0.9

0.6

1.3

2.9

2.9

3.3

3.3

1.4

1.0

0.7

0.8

0.6

1.5

5.3

0.7

0.6

2.3

1.8

2.5

1.9

4.1

4.2

3.5

4.2

1.2

2.1

0.5

0.5

0.5

1.0

1.8

0.5

0.5

1.4

0.8

1.0

3.1

4.3

4.1

4. 8

4.4

1.3

1.9

0.6

0.7

0.7

1.1

NA

0.7

0.7

1.4

1.2

1.1

3.0

10.0

10.9

7.3

10.0

2.8

3.5

0.8

1.0

1.0

5.0

2.5

0.6

0.7

NA

0.7

23.8

6.9

3.7

3.7

3.1

3.9

1.2

1.3

0.8

0.7

0.7

2.0

NA

0.8

0.6

1.2

2.0

1.9

l.l

3.4

3.5 

2.5 

3.3

1.1

1.8

0.6

0.7

0.7

1.8

NA

0.6

0.5

1.3

1.9

1.1

1.9

NA * NOT AVAILABLE

SOURCE: HOUSEHOLD TRANSPORTATION PANEL* RESIDENTIAL ENERGY CONSUMPTION SURVEY,

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION,

OFFICE OF ENERGY MARKETS AND END USE,

ENERGY INFORMATION ADMINISTRATION.

7.8

7.9

9.3

0.1

2.7

1.7

2.0

1.7

1.7

4.6

NA

2.3

1.4

1.5

5.9

4.0

2.1

2.6

2.6

3.3

2.7

1.8

0.9

0.4

0.4

0.4

1.0

13.2

0.6

0.5

1.6

1.1

0.8

1.6

3.2

3.2

4.2

3.3

2.8

1.4

6.5

0.4

0.4

1.4

NA

0.7

0.6

1.7

1.6

1.4

1.8

3.9

3.8

4.2

4.2

2.0

1.8

0.8

0.9

0.8

0.9

21.9

0.8

1.1

3.2

0.9

1.4

3.0

3.5

3.4

4.7

3.3

1.2

3.6

0.6

0.8

0.9

0.9

NA

0.5

0.5

1. 1

1.0

0.5

4.2

4.0

3.8

5.3

4.1

1.4

4.2

0.5

0.8

1.0

0.8

NA

0.5

0.6

1.1

0.9

0.6

4.5

6.3

5.7

7.1

6.1

1.5

1.2

1.2

1.6

1.6

NA

NA

2.3

1.9

NA

3.6

6.3

5.6
TABLE 46. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE HONTH FOR 1980 BT GEOGRAPHIC LOCATIONS 

RELATIVE STANDARD ERRORS IPERCENT*»

UNITED

T I 

0 ( 

T f

A i

L t

AVERAGES PER VEHICLE

GALLONS PURCHASED................... 1.2 1

GALLONS CONSUMED.................... 1.2 1.

MILES DRIVEN........................ 1.4 1

FUEL INVENTORY AS A PERCENT

AVERAGES PER GALLON

PRICE 1 CENTS PER GALLON)

LEADED FUELS.................... 0.3 0.

REGULAR....................... 0.3 0.

UNKNOWN....................... 1.5 1.

UNKNOWN, OTHER, G DIESEL FUELS.. 0.5 0

MILES PER GALLON.................... 0.9 i

STATES

NORTHEAST NORTH 

1 R

I U 

» R T U R T 

k A 0 R U 0 

4 L T B R T 

A A A A 

L N L L

.4 2.6 2.9 2.4 8.6 2.0 

4 2.6 2.8 2.3 8.6 2.0 

.5 3.0 3.0 3.3 9.5 2.4 

4 2.7 3.0 2.5 9.1 1.9

,8 1.2 1.1 0.9 3.6 0.9 

.8 1.1 2.1 2.0 3.6 0.9

.2 0.5 0.3 0.3 0.7 0.5 

.3 0.6 0.4 0.5 0.9 0.6 

.3 0.6 0.4 0.5 0.9 0.6 

.5 1.2 1.1 1.2 4.3 2.4 

.9 1.3 2.0 2.6 3.5 2.4 

.2 0.5 0.3 0.3 0.9 0.5 

.2 0.5 0.4 0.4 0.9 0.5 

.5 0.7 0.7 0.9 0.9 0.9 

.3 0.6 0.5 0.5 1.6 0.5 

.5 1.0 0.9 1.1 1.2 0.9

.1 1.5 2.7 3.0 4.0 1.4

CENSUS REGIONS

CENTRAL

U 

R 

B 

A 

N

2.3 

2.3 

2.6 

2.3

1.0 

1.0

0.4 

0.5 

0.5 

2.7 

2.0 

0.3 

0.3 

0.9 

0.4 

0.8

1.5

R 

U 

R 

A

L 

1

4.5 

4.5 

5.6 

4.7

1.6 

1.6

1.2 

1.2 

1.2 

12.7 

NA 

1.1 

1.0 

2.3 

1.2 

2.1

2.6

T 

0 

T 

A 

L 

1

2.2 

2.1 

2.6 

2.3

1.8

0.8

0.4 

0.5 

0.6 

0.8 

1.1 

0.4 

0.4 

0.7 

0.6 

1.0

1.0

SOUTH

U

R 

B 

A 

N

2.1 

2.1 

2.5 

2.3

2.5 

1.0

0.4 

0.6 

0.7 

1.2 

1.7 

0.4 

0.4 

0.9 

0.8 

0.9

1.1

R 

U 

R 

A 

L 

1 .....

4.8 

4.7 

4.6 

4.9

1.8 

1.4

0.7 

0.9 

0.9 

1.0 

12.0 

0.7 

. 0.8 

1.0 

0.9 

1.1

1 .9

T 

D 

T 

A 

L

3.2 

3.3 

3.1 

3.2

0.7 

1.8

0.4 

0.4 

0.4 

0.6 

3.0 

0.2 

0.4 

l.l 

0.2 

0.7

2.6

WES

U 

R 

8 

A 

N

3.9 

4.1

3.8 

4.0

0.9 

2.0

0.5 

0.5 

0.5 

0.4 

3.2 

0.3 

0.5 

1.2 

0.3 

0.6

2.9

R 

U 

R 

A 

L

4.3 

4.4 

4.7

5.0

1.4 

1.6

0.9 

1.1 

0.9 

2.5 

NA 

0.4 

0.5 

23.9 

0.3 

4.1

2.3

NA = NOT AVAILABLE

SOURCE: HOUSEHOLD TRANSPORTATION PANELt RESIDENTIAL ENERGY CONSUMPTION SURVEY,

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION,

OFFICE OF ENERGY MARKETS AND END USE,

ENERGY INFORMATION ADMINISTRATION.
TABLE 47. U.S. HOUSEHOLD TRANSPORTATION DATA - TOTALS FOR JUNE 1979 TO DECEMBER 1979 BY FAMILY INCOMES 

RELATIVE STANDARD ERRORS CPERCENTSI

TOTAL

$0

TO

$4,999

U.S. TOTALS

MILES DRIVEN (BILLIONS)............. 1.8 17.5

EXPENDITURES (BILLIONS OF DOLLARS)

ALL FUELS......................... 1.7 17.4

LEADED FUELS.................... 3.6 18.3

UNLEADED FUELS.................. 4.2 23.4

UNKNOWN, OTHER, 6 DIESEL FUELS.. 12.0 33.6

GALLONS PURCHASED (BILLIONS)

ALL FUELS......................... 1.6 17.5

LEADED FUELS.................... 3.6 18.3

UNLEADED FUELS.................. 4.1 23.8

UNKNOWN, OTHER, £ DIESEL FUELS.. 11.6 33.2

NUMBER OF HOUSEHOLDS (MILLIONS)

WITH VEHICLES.................. 1.3 13.7

NUMBER OF VEHICLES (MILLIONS)....... 0.0 14.6

FAMILY INCOME

I

I $5,000 

I TO 

J $9,999

.J_______

8.6

9.2

13.9

10.3

24.8

9.5

14.1

10.5

25.0

8.0

8.1

I

I

I I I

1 $10,000 I $15,000 I $20,000 I $25,000

TO I TO I TO

I $14,999 I $19,999 | $24,999 |

7.3

7.4

8.7

11.0

16.5

7.3

8.8

11.0

16.4

5.8

6.5

6.5

7.0

9.4

9.3

17.9

6.9

9.4

9.2

17.7

5.8

6.4

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

6.0

6.3

9.3

9.0

23.1

6.2

9.3

8.7

22.5

5.5 

5.8

OR 

MORE

6.7

6.4

7.3

9.2

34.1

6.5

7.4

9.1

33.1

6.1 

5.7
TABLE 48. U.S. HOUSEHOLD TRANSPORTATION DATA - 

RELATIVE STANDARD ERRORS (PERCENTS)

TOTALS FOR 1980 BY FAMILY INCOME:

TOTAL

00

FAMILY INCOME

$0

TO

$4,999

U.S. TOTALS

MILES DRIVEN I BILLIONS)............. 1.4 10.1

EXPENDITURES (BILLIONS OF DOLLARS!

ALL FUELS......................... 1.2 10.2

LEADED FUELS.................... 2.8 13.9

UNLEADED FUELS.................. 2.6 12.5

UNKNOWN, OTHER, C DIESEL FUELS.. 5.8 24.1

GALLONS PURCHASED (BILLIONS)

ALL FUELS......................... 1.2 10.2

LEADED FUELS.................... 2.8 13.7

UNLEADED FUELS.................. 2.5 12.4

UNKNOWN, OTHER, £ DIESEL FUELS.. 5.8 24.5

NUMBER OF HOUSEHOLDS (MILLIONS)

WITH VEHICLES.................. 1.3 8.2

NUMBER OF VEHICLES (MILLIONS)....... 0.0 8.6

I I I 1 1

I $5,000 I $10,000 I $15,000 I $20,000 I $25,000 

I TO I TO I TO I TO I OR 

I $9,999 I $14,999 | $19,999 | $24,999 | MORE 

.J________J________I________I________!________

7.3

7.1

8.8

9.4

13.9

7.1

8.7

9.4

13.8

5.5

6.3

5.3

5.2

6.7

7.3

15.5

5.2

6.7

7.3

15.2

4.8

4.9

6.4

6.8

7.8

8.3

16.4

6.9

8.0

8.3

17.1

5.3

6.0

SOURCES HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

5.9

5.9

7.6

7.0

17.7

6.0

7.6

7.1

18.0

5.2 

5.0

5.2

5.0

6.6

5.7

14.8

5.0

6.6

5.7

14.6

5.1

5.2
TABLE 49. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR JUNE 1979 TO DECEMBER 1979 BY FAMILY INCOME: 

RELATIVE STANDARD ERRORS tPERCENTS)

AVERAGES PER VEHICLE

TOTAL

$0

TO

$4,999

FAMILY INCOME

I

I $5,000 

I TO 

I $9,999 

J_______

III! 

I $10,000 I $15,000 | $20,000 I $25,000 

! TO I TO I TO ! OR 

I $14,999 I $19,999 I $24,999 | MORE

_L ___L______L

VD

GALLONS PURCHASED................... 1.6

GALLONS CONSUMED....... ............. 1.7

MILES DRIVEN........................ 1.8

EXPENDITURES (DOLLARS).............. 1.7

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY................... 0.8

FUEL TANK CAPACITY CGALLONS1........ 0.9

AVERAGES PER GALLON

PRICE (CENTS PER GALLON)

ALL FUELS......................... 0.3

LEADED FUELS.................... 0.3

REGULAR....................... 0.3

PREMIUM....................... 0.7

UNKNOWN....................... 5.5

UNLEADED FUELS.................. 0.4

REGULAR....................... 0.3

PREMIUM....................... 0.7

UNKNOWN....................... 0.8

UNKNOWN, OTHER, £ DIESEL FUELS.. 0.9

MILES PER GALLON.................... 1.1

7.6 

7.5 

8.7 

7.8

2.4

1.8

0.9 

1.1 

0.8 

3.5 

NA 

1.8 

2.1 

17.5 

2.8 

1.8

4.2

4.3 

4.2 

4.0 

4.0

2.9 

1.5

0.7

0.8

0.8

1.6

NA

0.9

1.0

2.4

1.2

1.1

2.4

4.4

4.3 

4.2 

4.6

1.8 

1.6

0.5

0.6

0.6

1.2

NA

0.7

0.6

1.8

1.6

1.4

2.2

3.6 

3.6

3.5

3.6

1.4 

1.4

0.5

0.6

0.5

2.1

NA

0.5

0.5

2.3

1.3

1.3

1.5

3.1

3.2

3.2

3.3

1.5 

1.4

0.5

0.7

0.6

1.9

NA

0.6

0.6

1.8

1.6

1.8

1.9

2.7

2.8

2.5

2.6

l.l

1.8

0.6 

0.7 

0.7

1.0

12.8

0.5

0.6

1.1 

1.0 

3.0

2.3

NA = NOT AVAILABLE

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY,

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION,

OFFICE OF ENERGY MARKETS AND END USE,

ENERGY INFORMATION ADMINISTRATION.
TABLE 50. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR 1980 BV FAMILY INCOME! 

RELATIVE STANDARD ERRORS (PERCENTS)

AVERAGES PER VEHICLE

TOTAL

$0

TO

$4,999

FAMILY INCOME

I I I I I

I $5,000 | $10,000 ! $15,000 I $20,000 I $25,000

TO 

$9,999

I TO I TO I I

I $14,999 I $19,999 | $24,999 !

J_ J_ I

OR

MORE

GALLONS PURCHASED................... 1.2

GALLONS CONSUMED.................... 1.2

MILES DRIVEN........................ 1.4

EXPENDITURES (DOLLARS).............. 1.2

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY................... 0. T

FUEL TANK CAPACITY (GALLONS I ........ 0.6

AVERAGES PER GALLON

PRICE (CENTS PER GALLON)

ALL FUELS......................... 0.2

LEADED FUELS.................... 0.3

REGULAR....................... 0.3

PREMIUM....................... 0.5

UNKNOWN....................... 1.5

UNLEADED FUELS.................. 0.2

REGULAR....................... 0.2

PREMIUM....................... 0.4

UNKNOWN....................... 0.3

UNKNOWN, OTHER, 6 DIESEL FUELS.. 0.5

MILES PER GALLON.................... 0.9

4.9 

4.9 

5.5

5.0

2.2 

1.2

0.6 

0.9 

0.8 

1.2 

20.7 

0.6 

0.9 

0.9 

1.2 

1.5

2.4

3.0 

3.0 

3.4

3.0

1.7 

1.2

0.4 

0.8 

0.9 

1.0 

2.7 

0.5 

0.5 

1.0 

0.6 

0.6

1.6

2.4 

2.4 

2.8 

2.4

1.3 

1.1

0.4 

0.4 

0.4 

1.2 

2.7 

0.4 

0.4 

l.l 

0.8 

1.1

1.6

3.7 

3.7 

3.4 

3.6

1.3 

1.1

0.4 

0.4 

0.4 

1.2 

1.7 

0.4 

0.4 

0.9 

0.7 

1.3

1.7

2.9 

2.9

2.7

2.8

1.2

1.3

0.4 

0.5 

0.5 

1.2 

2.5 

0.4 

0.5 

0.8 

0.6 

1.1

1.9

1.8 

1.8 

1.8 

1.8

0.7 

1.3

0.3 

0.4 

0.4 

0.9 

2.2 

0.3 

0.3 

0.5 

0.5

1.2

1.3

S3URCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 51. U.S. HOUSEHOLD TRANSPORTATION DATA - TOTALS FOR JUNE 1979 TO DECEMBER 1979 BY 

HOUSEHOLD CHARACTERISTICS: RELATIVE STANDARD ERRORS (PERCENTSI

••

TOTAL

HOUSING STATUS

1

0

w

N

c

R

s

R

E

N

T

E

R

S

L

NUMBER OF

VEHICLES

USED BY

HOUSEHOLD

„ - -

V

E

H

1 I

c

L

E

2

y

0 E

R H

I

M C

0 V

R E

E S

NUMBER OF DRIVERS

IN HOUSEHOLD

1 D

R

T I

0 V

E

2 R

S

3

0

0 R

R I

V

M E

0 R

R S

E

U

0 N

T A K

H N N

EDO

R W

N

| I _ 1 _ _

U.S. TOTALS

EXPENDITURES (BILLIONS OF DOLLARS)

ALL FUELS...........................

UNKNOWN, OTHER, £ DIESEL FUELS....

GALLONS PURCHASED (BILLIONS)

ALL FUELS...........................

LEADED FUELS......................

UNLEADED FUELS. ...................

UNKNOWN, OTHER, G DIESEL FUELS....

NUMBER OF HOUSEHOLDS (MILLIONS)

WITH VEHICLES....................

l.B

1.7

3.6

4.2

12.0

1.6

3.6

A.I

11.6

1.3

0.0

d.t

2.5

4.4

4.5

14.1

2.5

4.4

4.3

13.5

2.3

1.9

**.«>

10.1

9.4

14.5

22.5

10.0

9.4

14.6

22.3

9.1

9.4

3.fc

5.3

6.8

7.6

17.9

5.3

6.7

7.8

17.8

4.7

4.7

l.o

2.4

4.7

5.2

13.2

2.4

4.7

5.1

12.7

1.6

1.4

3.U

3.1

4.5

4.8

14.9

3.0

4.5

4.7

14.3

2.2

1.8

I . 5

7.0

9.8

10.0

20.7

7.1

10.0

9.7

20,7

6.6

6,2

r i ••»

72.9

70.6

79.8

100.9

73.2

70.7

80.5

100.9

54.1

52.5

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 52. U.S. HOUSEHOLD TRANSPORTATION DATA - TOTALS FOR 1980 BY HOUSEHOLD CHARACTERISTICS! 

RELATIVE STANDARD ERRORS IPERCENTS1

HOUSING STATUS

TOTAL

0 

W 

N 

E 

R 

S

R 

E 

N 

T 

E 

R 

S

NUMBER OF 

VEHICLES 

USED BY 

HOUSEHOLD

V 

E 

H

1 I 

C 

L 

E

2

V

0 E 

R H

I

M C 

0 V 

R E 

E S

NUMBER OF DRIVERS 

IN HOUSEHOLD

1 0

R

T I

0 V

E

2 R

to

U.S. TOTALS

MILES DRIVEN (BILLIONS!............... 1.4 2.5 7.8

EXPENDITURES (BILLIONS OF DOLLARS)

ALL FUELS........................... 1.2 2.4 7.3

LEADED FUELS...................... 2.8 3.6 8.9

UNLEADED FUELS.................... 2.6 3.5 9.4

UNKNOWNt OTHER, C DIESEL FUELS.... 5.8 6.8 13.7

GALLONS PURCHASED (BILLIONSJ

ALL FUELS........................... 1.2 2.4 7.3

LEADED FUELS...................... 2.8 3.6 9.0

UNLEADED FUELS.................... 2.5 3.4 9.4

UNKNOWN, OTHER, £ DIESEL FUELS.... 5.8 6.7 13.8

NUMBER OF HOUSEHOLDS (MILLIONS)

WITH VEHICLES.................... 1.3 2.2 6.7

NUMBER OF VEHICLES (MILLIONS)......... 0.0 1.7 7.1

5.2

5.0 

6.2 

6.4 

9.6

4.9 

6.1 

6.4

9.3

4.3 

4.3

1.7

1.7 

3.2 

2.9

8.0

1.7 

3.3 

2.8

7.8

1.0 

1.2

2.1

2.1 

3.6 

3.1 

7.4

2.2 

3.7 

3.1

7.4

1.9 

1.4

SOURCES HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

3

D

0 R 

R I

V

M E 

0 R 

R S

4.6

4.6

6.7

5.4

14.7

4.7

6.8

5.4

15.1

3.5 

4.3

U

0 N 

T A K 

H N N 

EDO 

R W

N

38.1

34.0

38.3

59.7

54.9

33.7

38.4

59.8

54.5

27.2

26.8
TABLE 53. U.S. TRANSPORTATION DATA - AVERAGE MONTH FOR JUNE 1979 TO DECEMBER 1979 BY 

HOUSEHOLD CHARACTERISTICS! RELATIVE STANDARD ERRORS IPERCENTSI

o\

CO

AVERAGES PER VEHICLE

TOTAL

HOUSING STATUS

-

0

w

N

E

R

o

R

E

N

T

E

R

S

NUMBER OF

VEHICLES

USED BY

HOUSEHOLD

V

E

H

1 I

C

L

E

2

V

0 E

R H

I

M C

n L

R E

E S

GALLONS PURCHASED. ................

EXPENDITURES (DOLLARS) ............

FUEL INVENTORY AS A PERCENT

OF TANK CAPACITY...... ...........

AVERAGES PER GALLON

PRICE (CENTS PER GALLON)

ALL FUELS.......................

MILES PER GALLON..................

1.6

1.7

1.7

0.8

0.3

1.1

1.7

1.8

1.9

1.8

0.7

0.8

0.4

1.2

3.1

3.1

3.6

3.1

2.2

2.1

0.8

2.2

3.3

3.3

3.4

3.5

1.2

1.3

0.5

1.9

NUMBER OF DRIVERS 

IN HOUSEHOLD

!

V

) E

( H

I

1 C

t L

( E

: S

1.8

1.9

1.9

1.8

0.8

1.0

0.4

1.3

1 0

R

T I

0 V

E

2 R

S

2.1

2.1

2.1

2.2

0.9

0.9

0.3

1.1

3

0

D R

R I

V

M E

0 R

R S

E

_J

3.0

3.0

3.5

2.9

1.3

1.6

0.6

2.4

U

0 N

T A K

H N N

EDO

R W

N

______

67.1

65.2

63.9

66.6

50.0

24.4

NA

33.5

NA - NOT AVAILABLE

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY*

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION,

OFFICE OF ENERGY MARKETS AND END USE,

ENERGY INFORMATION ADMINISTRATION.
TABLE 54. U.S. HOUSEHOLD TRANSPORTATION DATA - AVERAGE MONTH FOR 1980 BY HOUSEHOLD CHARACTERISTICS: 

RELATIVE STANDARD ERRORS (PERCENTS)

AVERAGES PER VEHICLE

TOTAL

HOUSING STATUS

0

W

N

E

R

s

R

E

N

T

E

R

S

NUMBER OF

VEHICLES

USED BY

HOUSEHOLD L. . __

V

E

H

1 I

C

L

E

2

V

0 E

R H

I

M C

0 L

R E

E S

NUMBER OF DRIVERS

IN HOUSEHOLD

1 D

R

T 1

0 V

E

2 R

S

3

D

0 R

R I

V

M E

0 R

R S

F

U

0 N

T ft K

H N N

E 0 0

R W

N

FUEL INVENTORY AS A PERCENT

AVERAGES PER GALLON

PRICE (CENTS PER GALLON)

MILES PER GALLON..................

1.2

1.2

1.4

1.2

0.2

0.9

1.4

1.4

1.6

1.4

0.7

0.6

0.3

0.8

2.5

2.5

2.4

2.5

1.4

1.6

0.4

2.1

2.4

2.4

2.8

2.4

1.1

1.0

0.3

1.3

1.4

1.4

1.5

1.3

0.7

0.7

0.3

1.0

1.3 

1.3 

1.5 

1.3

0.8 

0.8

0.?

1.0

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

2.8 

2.8 

2.6 

2.8

1.0 

1.0

0.4 

1.2

15.4

15.5

21.1

15.9

8.2 

2.1

1.6

8. 8
TABLE 55. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY COUNTS OF VEHICLES 

BV MILES DRIVEN - JUNE 1979 TO DECEMBER 1979: 

RELATIVE STANDARD ERRORS (PERCENTS)

en

MILLIONS OF VEHICLES BY MONTH

I I 

I

JUN | JUL 1 AUG I SEP

•T9 | «79 | '79 | '79

„ I —I_____1____

I I 

I

II

10.51 I

7.8| II

I

0.0| 0.01 O.Ol I I

14.71 11.71 15.51 I

0.0

	19.3

1 

I

22.11 18.8| 23.51 26.4

I I 

I

24.41 15.91 19.31 18.0

I I 

I

18.01 8.7| 13.0| 16.1

i I 

I

13.71 9.01 13.61 12.7

I 1 

1

14.21 10.51 14.11 11.4

I I 

I

13.71 11.61 15.71 16.71

1 I I 

I

16.4| 11.01 17.6| 13.01

lilt

1 

I

OCT 1 NOV 1 DEC

•79 1 '79 | '79

I -J_____

I 

I

I 

I

0.01 0.0| 0.0

1 

I

19.31 14.i| 11.5

I 

I

21.61 19.31 14.7

I 

I

19.9| 12.3| 14.7

1 

1

20.9| 13.3| 14.4

I 

1

17.61 12.21 14.9

I 

I

14.31 15.21 9.8

I 

I

17.11 13.0] 12.9

I 

I

17.31 12.5! 13.5

1 

I

15.41 14.01 13.31 13.01 17.11 13.5) 11.6 1 1 I I

9.81 11.21 11.01 14.31 10.01 11.5 I

5.81 I

I

7.611

I

I

9.0| 6.61 I

1

7.2H I

5.9

20.71 12.71 26.11 26.31 23.8| 23.8| 25.4 I

SOJRCE: HOUSEHOLD TRANSPORTATION PANELt RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY EMO USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 56. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY COUNTS OF VEHICLES BY MILES DRIVEN - 1980: 

RELATIVE STANDARD ERRORS CPERCENTSI

MILES DRIVEN 

TOTAL...........................

1 TO 100......................

101 TO 200....................

601 TO 700....................

B01 TO 1,000..................

MILLIONS OF VEHICLES BY

JAN FEB 

•80 '80

0.0 

10.5 

14.8 

10.6 

9.3 

9.2 

11.3 

12.1

9.7 

1 

10.8

9.3 

7.8 

21.3

0.0| 

1 

11.91 

1 

15.31

1 

13.81 

1 

1 9.51 

1 

1 8.71 

1 

10.21 

1 1 

1 8.91 

1 

1 10.01 

1 

1 9.9| 

1 

1 8.21 

1 

7.6| 

1 

1 20.6) 

L L

MAR •80

___-.

0.0 

12.7 

17.1 

9.3 

12.2 

12.7 

10.3 

13.7 

12.3 

11.5 

10.4

7.4 

1 

IP. 5

1 

APR 1 

•80 I

1

1 

1

0.01

1

13.31 

1 

20.31 

1 

16.21 

1 

9.51 

1 

10.31 

1 

12.4| 

1 

11.4! 

1 

11.71 

1 

12.21 

1 

8.41 

1 

5.7| 

1 

22.71 

L 1

MAY •80

0.0 

16.2 

15.5 

10.6 

11.8 

10.8 

14.0 

11.4 

11.1 

12.5 

9.3 

6.7

14.7

j

1 1 

JUN I JUL I 

•80 1 «80 |

1 1

1 1

o.ol o.oi 1 1

15.9] 16.61

1 1 

15.91 13.6|

1 1 

12.21 11.11 

1 1 

10.71 11.71 

1 1 

12.11 11.01 

1 1 

11.71 11.61 

1 1 

10.4| 10.31 

I 1 

12.41 12.21 

1 1 

1 13.01 11.31 

1 1 

1 9.31 7.81 

1 1 

1 6.51 6.3| 

1 1 

1 15.81 11.41 

1 1 ]

MONTH

1 

AUG t 

•80 I

1

1 

1

o.ol 

1

14.51 

1 

15.61 

1 

13.71 

1 

9.4| 

1 

8.41 

1 

9.51 

1 

10.71 

1 

10.8) 

1 

12.91 

1 

9.0| 

1 

6.11 

1 

13.41 

I

SEP •80

.

0.0 

14.1 

20.5 

10.0 

11.2 

11.3 

10.8 

10.3 

10. 0 

11.3 

9.2 

7.4 

15.9

OCT •80 

_____ . _

0.01

1

14.71 

1 

15.41 

1 

13.41 

1 

11.21 

1 

12.41 

1 

13.41 

1 

10.9| 

1 

12.41 

1 

1U7| 

1 

10.61 

1 

7.31 

1 

15.91

L L

\

NOV I 

• 80 I

1

1

1

0.0)

1

13.81

1 

17.31 

1 

12.91 

1 

14.4) 

1 

12.11 

1 

11.21 

1 

12.01 

1 

12.6| 

1 

13.11 

1 

11.11 

1 

6.7| 

1 

17.71

DEC •80

0.0 

13.8 

15.4 

10.4 

9.9 

12.5 

9.2 

11.8 

10. 0 

12.0 

10.4 

6.7 

16.2

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION. 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 57. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY COUNTS OF VEHICLES 

BY GALLONS OF FUEL PURCHASED - JUNE 1979 TO DECEMBER 1979: 

RELATIVE STANDARD ERRORS IPERCENTS1

(Tl

GALLONS PURCHASED 

TOTAL...........................

0.............................

11 TO 20......................

21 TO 30......................

61 TO 70......................

ni Tn on

MILLIONS OF VEHICLES BY MONTH

1

JUN | JUL 

•79 I '79 11

O.Ol 0.0 1

14.51 12.1 

1 

22.4| 14.0 

1 

15.01 8.9 

1 

11.7) 8.2 

1 

14.lt 8.0 

1 

13.6) 8.1 

1 

11.6) 8.8 

1 

13.31 12.2 

1 

23.01 14.1 

1 

24.31 12.8 

1 

17.9| 17.6 

1 

10.4] 9.8 1

1 1 1 1 

AUG I SEP I OCT I NOV | DEC 

•79 | '79 1 «79 I '79 | "79 

I 1 1 

1

lit) 

1 1 1 

1

0.0| 0.0| 0.0| O.Ol 0.0 1 1 1 1

15.1! 18.11 17.51 12.91 10.4 

1 1 1 1 

35.71 26.51 28.11 21. 8| 15.4 

1 1 1 1 

1 ll.6| 13.91 12.21 10.31 13.6 

1 1 1 1 1 

1 11.41 11.51 17.81 12.0| 9.5 

1 1 1 1 1 

11.11 9.51 ll.4| 10.71 9.3 

III! 

1 13.01 9.11 10.21 12.3! 9.8 

1 1 1 1 1 

1 13.4| 12.01 13.81 11.51 10.1 

1 1 1 1 

1 14.21 16.71 14.0! ll.6| 12.6

I 1 1 1 

16.4| 17.91 18.9| 12.71 13.7

III! 

1 17.41 23.2! 18.21 17. 3| 15.1 

1 1 I 1 

21.2) 22.5) 28.3) 16.81 18.4 

1 1 ! ! 

1 12.01 16.01 12.71 ll.9| 13.3 

1 1 1 

1

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
TABLE 58. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY COUNTS OF VEHICLES BY GALLONS OF FUEL PURCHASED - 1980: 

RELATIVE STANDARD ERRORS CPERCENTSI

GALLONS PURCHASED 

TOTAL...........................

1 TO 10.......................

11 TO 20......................

21 TO 30......................

31 TO 40... ...................

41 TO 50......................

51 TO 60......................

o i TO on

MILLIONS OF VEHICLES BY MONTH

JAN 1 FEB 

•80 1 '80

1 

0.01 0.0

1

10.21 11.7 

1 

14.21 15.6 

1 

10.51 9.1 

1 

9.7| 8.5 

1 

8.81 7.8 

1 

8.11 7.4 

1 

8.21 7.8 

1 

12.8) 10.3 

1 

12.01 13.6 

1 

15.41 15.5 

1 

16.91 20.4 

1 

11.0) 11.0 1

MAR •80

1 0.0

1 11.4 

1 

1 16.7

1 11.2 

1 11.5 

I 8.9

1 8.5 

1

1 9.7

1 12.7

1 12.1 

1 

1 15.8 

1 

1 19.5

1 11.8

1

1 I 

APR 1 MAY | JUN 

•80 I «80 I «80 

I L

1 ! 

I 1

0.0) 0.0) 0.0 1 1

13. 11 13.4| 13.2 

1 1 

17.21 19.31 19.5 

1 1 

9.31 8.4| 8.4 

1 1 

9.4) 8.1) fl.2 

1 1 

7.4| 7.81 8.8 

1 1 

8.6) 9.7| 10.6 

1 1 

7.7| 10.21 9.0 

1 1 

13.4| 11.5! 14.2 

1 I 

12.41 12.9| 14.4 

! I 

19.11 17.31 14.9 

1 ! 

22.71 17.01 19.6 

1 ! 

11.4) 12.41 11.4 

1 .1..., ...1

! 

JUL AUG I SEP 

•80 "80 | «80

1

1 

1 

0.01 0.0! 0.0 1 1

13.01 11.51 13.5 

1 ! 

1 15.4! 15.41 13.6

! 1 

I 7.91 8.9! 9.7 

1 1 

1 9.1) 10. I! 8.6 

! 1 

9.4| 7.6| 7.7 

1 ! 

I 8.0| 8.1| 9.8 

1 I 

I 10. 0| 8.6| 9.9 

1 1 

1 11.4| 10.11 12.3 

1 1 

I 15.91 13.31 14.1 

1 1 

I 10.6! 16.3! 14.5 

1 1 

I 16.61 16.6) 13.8 

! 1 

1 7.6! 8.9| 15.8 

L..-,, 1 1 .

1

net | NOV

'80 | «80 L_ _.!..., , 1 

I

0.01 0.0 1

14.4| 11.4 

1 

15.21 15.4 

! 

10.6! 10.6 

1 

10.0! 10.3

1

9.1! 7.8 

1 

8.5| 9.6 

! 

11.21 10.0 

! 

10.61 11.7 

I 

17.01 12.4 

! 

15.91 20.7 

! 

18.71 20.3 

I 

12.51 12.4 

1

DEC •80

0.0 

12.2 

13.8 

10.8 

9.6 

7.9 

8.7 

10.4 

13.7 

11.3 

13.7 

12.5 

10.7

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE D 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

CONSUMPTION 

IVISION,

SURVEY,
TABLE 59. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY COUNTS OF VEHICLES 

BY DOLLAR EXPENDITURES - JUNE 1979 TO DECEMBER 1979: 

RELATIVE STANDARD ERRORS IPERCENTSI

EXPENDITURES

(0..

$10. 

$10. 

$20. 

$30. 

$40. 

$50. 

$60. 

$70. 

$80. 

$90. 

$100

00 

01 

01 

01 

01 

01 

01 

01 

01 

01 

.01

OR 

TO 

TO 

TO 

TO 

TO 

TO 

TO 

TO 

TO 

OR

LESS................

$20.00..............

$30.00..............

$60.00..............

$70.00..............

$80.00..............

$90.00..............

$1CO. 00. ............

MORE...............

MILLIONS OF

. _ _ _

JUN •79

! 

JUL 1 

•79 I 

1 1

1 

1

o.ol o.ol 1 I

14.51 12.11 

1 1 

16.31 14.31 

1 1 

11.4) 8.61 

1 1 

10.21 7.2) 

1 1 

10.8| 7.01 

1 1 

11.3) 8.71 

1 1 

11.01 11.01 

1 1 

18.3) 13.11 

1 1 

19.31 11.81 

1 1 

17.4) 15.61 

1 1 

27.7| 15.61 

1 1 

12.61 11.41 

1

AUG •79

0.0 

1 

15.1

37.5 

8.4 

10.8 

11.4 

11.4 

16.0 

15.3 

17.1 

19.6 

22.?

12.5

J

VEHICLES BY MONTH

SEP 

'79

0.0 

18.1 

21.4 

14.2 

9.4 

8.5 

8.8 

14.5 

14.8 

18.1 

25.0 

37.8 

15.2

OCT •79 NOV •79

0.01 0. 

1 

17.51 12.

31.21 ZO. 

1 

11.3| 10. 

I 

17.31 11. 

1 

12.41 11. 

1 

10.21 12. 

1 

14.41 11. 

1 

13.6| 12. 

1 

16.7! 11. 

1 

I 20.6) 16. 

1 

I 22.21 18. 

1 

1 12.31 11. 

1 1

_.

0 

8 

3 

6 

6 

1 

1 

8 

0 

5 

0 

4 

3

OFC •79

L_____

0.0 

10.4 

16.7 

13.0 

10.9 

9.5 

9.8 

10.8 

11.7 

13.4 

1 15.8 

I 19.7

1 11. 1

, . __ .

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.

SURVEY,
TABLE 60. U.S. HOUSEHOLD TRANSPORTATION DATA - MONTHLY COUNTS OF VEHICLES BY DOLLAR EXPENDITURES - 1980: 

RELATIVE STANDARD ERRORS IPERCENTS)

EXPENDITURES 

TOTAL...........................

$0............................

$10.00 OR LESS................

MILLIONS OF VEHICLES BY

1 

JAN I 

•80 I

!

1 

0.0)

1

10.21 

I 

17.21 

1 

11.71 

1 

11.71 

I 

8.0| 

1 

8.91 

1 

8.8| 

1 

11.81 

1 

13.71 

1 

13.41 

1 

17.91 

1 

9.11

FEB •80

0.0 

11.7 

18.6 

10.6 

9.6 

7.3 

8.0 

9. 5 

10.5 

10. 1 

13.7 

16. 5 

10.0

1 

MAR I 

•80 |

!

1 

0.0|

1

11.41 

1 

18.8! 

1 

1 13.91 

1 

1 10.6) 

1 

1 10.8) 

1 

1 10.11 

1 

1 1C. 71 

1 

1 9.91 

1 1 

1 12.01 

1 

1 12.21 

1 

1 14.11 

1 

1 7.4| 

L i

1

APR 1 

•80 1 

1

1 

1

0.01 

1 

13.1)

1

20.61 

1 

10.81 

1 

10.11 

1 

7.51 

1 

10.41 

1 

10.11 

1 

8.3| 

1 

14.51 

1 

14.01 

1 

15.5! 

1 

7.9| 

1

MAY •80

0.0 

13.4 

25.3 

11.5 

13.1 

9.0 

7.5 

11.1 

11.1 

11.6

14.6 

1 

15.8

1 

7.8 

J

1 

JUN I 

•80 |

1 

1

0.0|1

13.21 

1 

21.81 

1 

11.1) 

1 

9.0| 

1 

10.61 

! 

9.7| 

1 

11.41 

1 

9.0| 

1 

1 13.7| 

I 

13.6! 

1 

14.71 

1 

8.4| 

L i

1 

JUL I 

•80 |

„,!1 

I

0.01

1

13.0!

1

18.8) 

1 

10.61 

1 

8.1! 

1 

9.31 

1

1 

8.3! 

1 

9.8| 

1 

10.7| 

1 

14.71 

1 

12.01 

1 

6.5|

L

MONTH

AUG SEP 

•80 «80

0.0 0.0 

11.5 13.5 

21.1 18.7 

9.3 10.2 

11. 1 11.0 

10.6 8.6 

8.6 8.1

7.9| 10.5 

1 

10.6! 10.1 

1 

11.61 15.5 

1 

14.71 13.5 

1 

16.51 17.2 

1 

7.1| 11.3

L J

OCT ' 80

L

0.0 

14.4 

20.7 

10.3 

12.6 

9.6 

8.7 

8.9 

13.9 

10.7 

17.7 

19.2

9.7

_ _ ]

I 

NOV I 

• 80 j

1 

1

I 0.0!

1 11.4|

1 19.91 

I 

1 12.31 

1 1 

! 10. 0| 

1 

1 11.6) 

I 

1 10.11 

I 

1 9.6! 

1 

1 12.21 

1 

1 12.21 

1 

1 14.01 

1 

1 18.1) 

1 

1 10.81 

L..-.. L

DEC •80

0.0 

12.2 

18.8 

12.1 

10. fl 

10.8 

9.4 

9.7 

10. 0 

11.5 

13.0 

16.0 

8.3

SOURCE: HOUSEHOLD TRANSPORTATION PANEL, RESIDENTIAL ENERGY CONSUMPTION SURVEY, 

RESIDENTIAL AND COMMERCIAL BRANCH, ENERGY END USE DIVISION, 

OFFICE OF ENERGY MARKETS AND END USE, 

ENERGY INFORMATION ADMINISTRATION.
2. LIMITATIONS OF THE DATA 

Overview

Data from the Household Transportation Panel are subject to many sources of 

sampling error, nonsampling error, and bias. Sampling error is a measure of the 

variability in the data caused by a subset of households being surveyed rather 

than the entire population. Because the survey used probability sampling 

techniques, it is possible to estimate sampling errors of the survey estimates 

and use these sampling errors as a guide in making inferences from the sample 

estimates to the total population. Nonsampling error and bias are measures 

of variability in survey data due to the conduct of the survey and therefore 

are not reflected in the estimate of the relative standard error. They can 

include respondent bias and response variance, interviewer error, coding 

and/or punching error, and nonresponse bias. Estimates of variance and bias 

due to these sources of error are not available for this survey. The wording 

and format of the survey questionnaires, the procedures used to select and 

train interviewers, and the quality control built into the data collection, 

data receipt, and data processing operations were all designed to 

minimize these sources of error.

Computation of Estimates

The estimates for the data totals were obtained by using the formula

X' = E W£ X-j_

where W-j_ is the household or vehicle weight and X^ is the variable of interest. 

The estimates for the data averages were obtained using the formula

A' = Z Wi X t / E Wt Y t

where W^ and X-^ are as before and Y^ is the variable over which we are 

averaging. The estimates for different table cells are obtained independently. 

No attempt was made to use the household rotation (2-4-2) pattern^ to improve 

the estimation procedure. If the variable, "month", was not one of the factors 

used to determine a particular cell, then the results for one household for 

different months were treated the same as data from different households in 

the estimation procedure. No information from previous transportation surveys 

was used to adjust the estimates except to insure that the weighted sum of 

households with vehicles was controlled to equal projections based on the 

Bureau of the Census 1 'Current Population Series. 1

^With a 2-4-2 design, a household is in the survey for two months, then 

out for four months, then in for another two months. In any given month, 

approximately one fourth of the households in the panel are in for the first 

time, one fourth were in the previous month only, one fourth were in the 

fifth and sixth previous months and one fourth were in the previous month, 

sixth previous month and seventh previous month. As a result, the estimates 

for monthly statistics are highly correlated. In testing for trends over 

months, the power of comparison can be greatly increased by using the 2-4-2 

design pattern in the estimation procedure and variance calculation.

71
Computation of Sampling Errors

The complex multi-stage, multi-frame design of the survey makes it virtually 

impossible to construct an exact algebraic variance estimator. The method 

used to produce variances for this survey is a balanced half-sample replica 

tion procedure (See References 1 and 2). In order to apply the half-sample 

technique to this survey, the 103 sample primary sampling units (PSU's) were 

grouped into 71 strata. Thirty-nine of the strata were self-representing; 

that is, they consisted of large metropolitan areas that came into the sample 

with certainty. In these strata, sample segments were divided into two 

replication groups. Each of the remaining 32 strata consisted of two matched 

nonself-representing PSU's belonging to the same Census region. Nonselfrepresenting PSU's which were used for the pretest were matched among themselves 

and those not used for the pretest were matched among themselves. In addition, 

the nonself-representing PSU's were matched according to rural/urban status 

and SMSA size whenever possible. The two replication groups in the nonselfrepresenting strata consisted of one PSU each.

Variance estimates for selected survey statistics were created by computing 

72 half-sample estimates for each statistic. Each half-sample estimate was 

formed by selecting one of the two replication groups from each stratum using 

an orthogonal matrix technique adapted from an article by Plackett and Burman 

(See Reference 3). The household weights and vehicle weights in each halfsample were ratio-adjusted upward so that the total number of households with 

vehicles and total number of vehicles per month corresponded to the full 

sample weighted totals. These control totals are as follows:

Table C. Total and Estimated Numbers of Sample Households with Vehicles 

by Year and Month

Control Number

of Households Estimated 

with Vehicles Number of Vehicles 

Year/Month (thousands) (thousands)

1979

July. .................

1980

April.................

May. ..................

July. .................

......... 69,050

......... 69,180

......... 69,310

........ 69,450

......... 69,580

........ 69,710

......... 69,830

......... 69,950

......... 70,070

......... 70,200

........ 70,320

......... 70,440

........ 70,560

......... 70,680

........ 70,800

122,900

123,200

123,500

123,900

124,200

124,500

124,800

125,200

125,500

125,700

126,200

126,700

126,900

127,200

127,600

72
Table C. Total and Estimated Number of Sample Households with Vehicles 

________by Year and Month (Continued)__________________________

Control Number

of Households Estimated 

with Vehicles Number of Vehicles 

Year/Month _________________(thousands)___________ (thousands )

C\r* f- f\ T-v£> •>»

70 9?0

......... 71,040

........ 71,160

......... 71.290

128,000

128,000

128,400

128.800

The variance estimate for the survey estimate X' of characteristic X is 

given by:

s 2 1 2 f, = }2 i (x|-x') 2

where X! is the i half-sample estimate of X. The error tables in this 

report display relative standard errors (RSE's), which are defined as

S 2 , 

RSE(X')= / 

(X 1 ) 2

The ratio adjustment of the totals for vehicles and households with vehicles 

insures that the relative error for these totals is zero. Any errors in these 

numbers can be considered to be design biases. In particular, they are affected 

by any undercount or overcount in the census data. In addition, the total 

number of vehicles may be biased by the estimate of the number of vehicles 

per household and the final weighting scheme.

Using Error Estimates to Form Confidence Intervals

Estimates of the RSE's can be used to construct confidence intervals for 

individual estimates. For example, Table 1 includes the estimate that during 

June 1979, the total miles driven were 93.2 billion. From Table 31, the 

relative standard error for this estimate is 3.6 percent. From this data, 

an approximate 95 percent confidence interval can be constructed by using 

4-2 standard errors of the estimate, where the standard error of an estimate 

X is given by S X=[RSE(X)] x [X]. Thus, a 95 percent confidence interval can 

be constructed for the previous example as follows: during June 1979, the 

total miles driven was 93.2 billion (+ 7.2 percent of 93.2), or 93.2 billion 

miles (+ 6.7 billion miles).

73
Using Error Estimates to Test Statistical Hypotheses

The analytical statements in the text of this report can be divided into 

three types. The first type is the expository statement, which presents a 

statistic for its own sake, without reference to any other statistic. An 

example of such a statement is found in the first sentence of the third 

paragraph under "Expenditures". "For the average month in 1980, $58.80 

(+1.4) was spent per vehicle for fuel." No statistical tests of hypothesis 

are needed or were performed for such statements; twice the standard error 

is given in parentheses after the estimate. This value serves as a measure 

of the level of variability in the statistic, and enables the reader to 

compute an approximate 95 percent confidence interval for the estimate by 

adding and subtracting the value in parentheses.

The second type of statement is the descriptive statement, which is intended 

to be a summary statement of a data relationship or relationships that 

exist in a table. An example of this type of statement is found in the 

first sentence under "Price": "... the price of motor gasoline has changed 

dramatically since the survey was initiated in June 1979." Such statements 

are meant to give general impressions and are not subject to statistical 

justification.

The third type of statement is the stated or implied comparison of two or 

more statistics. Such comparisons are meant to point out specific similarities 

and differences between population subgroups, sometimes in support of the 

summary statements discussed above. Since these statements imply specific 

relationships among population subgroups based on sample data, they are 

inferential, and subject to statistical testing. Examples of such comparisons 

are:

Example (1)

Example (2)

The third sentence in the second paragraph under "Price": 

"Regular leaded fuel had the lowest average price per 

gallon; ... 116.2 (+0.7) in 1980."

The second sentence in the second paragraph under "miles 

per gallon: Those vehicles built from 1975 through 1980 

had a combined average miles per gallon of 15.7 (+_ 0.3) 

while 1970 to 1974 vehicles, and 1969 and older vehicles, 

posted average miles per gallon of 13.2 (+_ 0.2) and 12.9 

(+ 0.4), respectively."

Example 1 implies that the average price of regular leaded fuel was signifi 

cantly less than the average for other gasoline grades. Example 2 states 

that the average miles per gallon for cars built after 1974 was higher than 

the value for each of the other two age groups.

The test used to check this kind of statement is the standard normal deviate 

test. In order to test the significance of the difference between estimates 

X' and Y', X' and Y' are assumed to be normally distributed by appeal to 

the Central Limit Theorem.

74
Then the test statistic

Z X',Y'

J

is computed, with Z having approximately a standard normal distribution. 

The null hypothesis, that there is no difference between X 1 and Y 1 , is 

rejected if Z^1 , y' * s greater than some critical value G. In this 

report, G is set so that the level of significance, (the probability of 

detecting a difference when no difference exists,) is .05. Ordinarily, 

this level of significance corresponds to a critical value of 1.96, and 

when a comparison is the only possible one of its type, 1.96 is the correct 

value. However, most of the statements in this report involve comparisons 

that were selected from a larger set of C possible comparisons, each of 

which had an opportunity to be tested and falsely yield a significant 

difference. In order to attain a true level of significance no greater 

than .05 for a particular test from such a set, the critical value G was 

adjusted so that the probability of falsely detecting any significant 

difference was ,05/C. The rationale for this adjustment is based on the 

Bonferroni inequality, and is discussed elsewhere (see References 4 and 5).

The normal test of a hypothesis with adjusted critical value can be applied 

to the examples as follows:

(1) The test data for Example 1 came from Table 4 and Error Table 34, 

and are summarized in the table below:

Table D. Test Data for Example 1

1980 

Average Price

Fuel Grade

Unleaded Regular.....

per Gallon

116.2

125.8

122.0 

128.8

Standard Error1

0.35

0.50

0.24 

n s?

-*-The standard error is derived by multiplying the average price 

per gallon in Table 4, by the relative standard error in Table 34.

The number of possible comparisons among the 4 fuel grades is the 

combination 402 = 6 so the critical value for all tests is the normal 

two-tailed .05/6 = .0083 critical value which, from the standard normal 

tables, is 2.64.

75
The test statistics for the fuel grade comparison are:

ZLP,LR = 125.8 - 115.2 = 9^ = 15 . 7 

________ o.6i

7(0.50)2 + (0.35) 2

ZUR,LR = 122.0 - 116.2 = 5.8 = 13 . 8

0.42 

7(0.24)2 + (0.35) 2

Z UP LR - 128.8 - 116.2 = 12.6 = 2 0.0

_____________ 0.63 

7(0.52)2 + (0.35)2

All differences exceed the critical value of 2.64; therefore, 

the statement is justified.

(2) All data needed to test the statement in Example 2 

are found in the statement. Note that two standard 

errors are shown in the text, so the error values in 

the denominators of the test statistics are half of 

the text values. The test statistics are:

z l = 15.7 - 13.2 = 2.5 = 13.9

0.18 

+ (O.IO) 2

Z 2 = 15.7 - 12.9 = 2.8 = 11.2

_____________ 0.25

+ (0.20) 2

Since there are 3 subgroups, the number of possible comparisons is

and the resulting critical value is 2.39. Both test statistics exceed the

critical value, and so the statement is justified.

76
References

1. National Center for Health Statistics: "Replication: An Approach to 

the Analysis of Data From Complex Surveys." Vital and Health 

Statistics. Public Health Service Publication No. 1000 - Series 2 - 

No. 14., Washington: U.S. Government Printing Office, April 1966.

2. National Center for Health Statistics: "Pseudoreplication: Further 

Evaluation and Application of the Balanced Half-Sample Technique," 

Vital and Health Statistics. Public Health Service Publication No. 

1000 - Series 2 - No. 31. Washington: U.S. Government Printing 

Office, January 1969.

3. Plackett, R.L., and Burman, J.P.: "The Design of Optimum Multifactorial 

Experiments." Biometrika 33: pp. 305-325, 1946.

4. Miller, R. G.: Simultaneous Statistical Inference. New York: 

McGraw-Hill Book Co., 1966.

5. National Center for Health Statistics: Manual on Standards and Procedures 

for Reviewing Statistical Reports. 1974. (Internal Document.)

77
3. HOW THE SURVEY WAS CONDUCTED

Introduction

The Household Transportation Panel (EIA-141)-'- was designed by the Energy 

Information Administration (ETA) to provide data on energy consumption for 

motor vehicle transportation within the residential sector. This survey 

is one of several studies that, together, will provide data on energy 

consumption in the residential, commercial, industrial, and 

transportation sectors.

The purpose of the Household Transportation Panel is to provide monthly 

and annual estimates of fuel consumed and miles driven by household-used 

vehicles. Data are recorded in fuel purchase logs by monthly panels of 

respondents. ("Household vehicles" includes all motor vehicles used by 

the household except motorcycles, mopeds, large trucks, and large buses.) 

The panels of households are generally asked to report for two months 

initially, and then to report for another two months after a four-month 

interval of nonparticipation. Each month's panel is a representative 

national sample selected from the 48 contiguous States and the District of 

Columbia.

Sample Selection

The Household Transportation Panel is comprised of households that are 

subsampled from two national surveys. The first survey used for subsampling 

is the set of 3,842 respondents to the National Interim Energy Consumption 

Survey (NIECS). Response Analysis Corporation (RAC) of Princeton, New Jersey, 

contacted 4,507 households for the NIECS in November and December 1978. They 

inquired about fuels used by the households, appliances used, conservation 

activities, and characteristics of the households' vehicles. These households 

had been selected according to a complex, multi-stage sample design; probability 

techniques were used throughout all stages.2 (only households which own at 

least one vehicle are selected. ) Respondents in 69 of the 103 Primary Sampling 

Units (PSU)3 who had at least one vehicle were randomly assigned to 6 groups.

10ffice of Management and Budget (0MB) Clearance No. 38-R0392.

^For more information on how the NIECS survey was conducted, see Appendix B, 

Residential Energy Consumption Survey: Consumption and Expenditures, April 

1978 through March 1979, July 1980, DOE/EIA 0207/5, GPO Stock No. 061-003-00131-9.

^Respondents in the other 34 PSU's from the NIECS were used in pretests to 

select an optimum design for the Transportation Panel.

79
Starting in June 1979, one group was brought into the sample each month for a 

two-month reporting period. (There was some experimentation in July 1979 

with one- and three-month reporting periods.) Starting in December 1979, 

these groups were returned to the sample, one each month, for another two-month 

reporting period.

The second survey was necessary to screen households for participation in the 

Household Transportation Panel beyond November 1979. This national "Screener 

Sample" was selected from the same block listings of housing units in 103 PSU's 

that had been used for the NIECS, but excluding the households that had been 

selected for the NIECS. Households in the Screener Sample were interviewed in 

November and December 1979 and resulted in 3,806 personal contacts at the 

4,453 eligible households. Households that used vehicles for personal transpor 

tation were divided into 12 groups of 250 vehicles each, and, starting in 

December 1979, are being brought into the sample in the same 2-4-2 pattern as 

described for the NIECS households. Since January 1980, this general 2-4-2 

reporting pattern has yielded a combined design sample size of about 1,000 

households for each month's panel from the NIECS and the Screener Sample.^

Survey Operations

The basic instrument used for data collection for the Household Transportation 

Panel is the Vehicle Fuel Purchase Log (See Appendix A). Sample households are 

requested to complete monthly logs for each of their vehicles. The infor 

mation requested on the log for each purchase is the:

odometer reading

fuel gauge reading after purchase

number of gallons purchased

total cost of the purchase

price per gallon

type of fuel purchased

In addition, odometer and fuel gauge readings are requested for the first 

and last days of each month.

Selected households are first contacted by a letter briefly describing 

the task of completing the purchase log and conveying a gift of $5 per 

vehicle. A follow-up telephone call is made to administer a background 

questionnaire and to verify information pertinent to the Transportation 

Panel, such as address, household size, and vehicle inventory. The interview 

obtains the name of the main driver for each household vehicle so that the

'•For a more detailed discussion of the Screener Sample, see Appendix A, 

Residential Energy Consumption Survey: 1979-1980 Consumption and Expenditures, 

Part 1; National Data (Including Conservation), DOE/EIA-0262/1, April 1981.

^Field experiments were carried out from February through June 1980 to 

determine the effectiveness of other dollar amounts, the appropriate timing 

for conveying the incentive, and one- versus two-month reporting periods.

80
fuel purchase log can be mailed to that person. In addition, RAG secures 

the name and address of a neighbor who would know the forwarding address 

should a move occur between panel rotations.

Shortly before the first day of the reporting month, a fuel purchase log 

and instructions are sent to each household. A telephone call is made 

several days later to check on the arrival of these materials and to answer 

any questions the respondent may have. Panelists are requested to use 

the logs from the first day of the month until the last day.

A mid-month telephone call is made to answer any new questions and to 

encourage the respondent to continue with the panel. Finally, within 

four or five days after the end of the month, a telephone call is made 

to collect the data recorded on the fuel purchase log. The respondent 

who reads the log data to the interviewer also answers a short list of 

topical questions. For instance, during the first several months of 

the panel, respondents were asked about waiting in lines at gas stations.

Data Processing

Data from the final telephone interviews are coded and then keypunched 

from hard copy to magnetic tape. The keypunching is 100 percent keyverified. A series of computer edits is made using the interrelationships 

among the data elements to check for reasonable values.

Estimation

A series of weights are applied to the reported data in order to expand 

them to population levels. These weights account for sampling and nonresponse, and incorporate ratio estimation techniques. Missing fuel 

purchases are detected and estimated from those reported. If a household 

completed purchase logs for some but not all of its vehicles, the completed 

logs are weighted up to represent the missing logs in that household. 

Sampled households that provided no complete purchase logs were accounted 

for by weighting up reported data at various subnational levels.

Initially, the household weight applied to the data is the product of the 

following weights:

 The household weight from the NIECS or the Screener Sample.

 The inverse of the chance of selecting the household to be 

in a particular month's panel.

Ratio estimation by the type of community within four Census regions and 

by selected household characteristics was used as an intermediate adjust 

ment to the weights.

81
Initially, the total number of weighted vehicles in any month was the result 

of an estimate based on the average number of vehicles per household 

determined on a straight line basis from November 1978 to November 1979, 

and from November 1979 to November 1980 (the NIECS and Screener Survey).

The initial value for the total number of vehicles per month was the product 

of this estimate and the number of households in the population taken from 

the Current Population Survey (CPS) estimates as reported by the Bureau of 

the Census.

Subsequent events resulted in the necessity of further adjustments to the 

household and vehicle weights. There were different adjustments to the 

weights for households living in metropolitan areas and those living in 

nonmetropolitan areas. The adjustment also changed according to the month. 

These additional adjustments arise from two factors.

 Overall 1980 census totals are higher than CPS estimates 

for the same period.

 Weighting procedures used for CPS estimates in 1977 and 

1978 resulted in inconsistencies in the series of CPS 

data reported for metropolitan and nonmetropolitan areas; 

this factor caused a distortion in the relationship 

between data for metropolitan areas and nonmetropolitan 

areas both in the CPS and in the transportation panel 

data.

The final weighted control totals for the number of households and number 

of vehicles by month are listed on page 72.

82
Response Rate

Table D. Percentage of Vehicles for Which Purchase Logs Were Completed

Year/Month

1979

June......

July......

August....

September. 

October... 

November.. 

December

1980

January. .. 

February.. 

March.....

April.....

May.......

June......

July......

August....

September. 

October... 

November.. 

December..

Number of 

Eligible 

Vehicles *

1,051

2,124

1,320

1,326

1,316

1,541

1,870

2,220

2,181

1,893

1,832

2,022

2,040

2,146

2,055

1,848

1,757

1,784

1,756

Vehicles with 

Completed Logs^

682

1,221

691

658

715

761

954

1,228

1,252

1,166

1,121

1,180

1,217

1,354

1,315

1,249

1,162

1,152

1,193

Percentage of 

Completed Logs

65

57

52

50

54

49

51

55

57

62

61

58

60

63

64

68

66

65

68

^Number of eligible vehicles in the Household Transportation Panel 

data base.

^All completed vehicles that are used (weighted) to produce the Household

Transportation Panel estimates.

To be eligible, the vehicle must meet the qualifications described in the 

glossary and be available for the household to use. It need not have 

been driven.

83
APPENDIXES
A. FUEL PURCHASE SURVEY LOG

Information on fuel purchases is 

confidential and will be used only 

in statistical summaries. This survey 

is being done under the Federal 

Energy Administration Act of 1974. 

Your participation is voluntary.

U.S. DEPARTMENT OF ENERGY

National Survey of 

Fuel Purchases for Vehicles

MAY 1980

Conducted by

Response Analysis Corporation

P.O. Box 158 

Princeton, New Jersey

87
File No. VEHICLE FUEL PURCHASE LOG

PLEASE KEEP THIS LOG IN YOUR VEHICLE AND WRITE DOWN EVERY GASOLINE OR DIESEL FUEL PURCHASE

BETWEEN HAY 1. 1980, AND HAY 31. 1980.

HAKE THESE ENTRIES 1

BEFORE FIRST USE \

OF VEHICLE ON / 

MAY 1. 1980 [

Total 

Vehicle

Mileage

Complete the line showing

how full the tank 1s 

before first use on

Nay 1. 1986

^^ a ^^^ <O^feQ>

^ir

Vehicle Make:

Vehicle Year:

Vehicle Model:

About how many gallons does the 

tank of this vehicle hold?

n nrw'T KNflu

GALLONS

OH8 No. 38-R0392 

EIA-141

FUEL PURCHASES

Purchase 

Hater..

1

2

3

4

Fuel 

Purchase 

Date

Total 

Vehicle 

Mileage

Complete the line showing how full the tank 1s after 

fuel purchase

^^^^

^^^^

^^P^

"^^^P^^

Ninber of 

Gallons 

Purchased

Total Cost 

of Fuel

Price 

per Gallon

Uas the 

tank 

filled?

[] YES 

[]NO

[] YES 

[]NO

[] YES 

[] NO

[] YES

UNO

Type of Fuel Purchased

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] REGULAR 

[] PREMIUM 

[] DIESa

[] REGULAR 

[] PREMIUM 

[] DIESEL

[] REGULAR 

[] PREMIUM 

[] DIESEL

[] REGULAR 

[] PREMIUM 

[] DIESEL

Please note any problem 

related to this purchase

PLEASE CONTINUE RECORDING PURCHASES UNTIL MAY 31, 1980 ON SECOND PAGE OF THIS LOG.

co 

oo

MAKE THESE ENTRIES 

AFTER LAST USE 

OF VEHICLE ON 

MAY 31 . 1980

Total 

Vehicle 

Mileage

Complete the line showing 

how full the tank Is after 

last use on May 31 , l95T~

After the last use on May 31, 1980. please keep this log near your telephone. 

He will be calling to obtain the Information. Or, 1f you will be difficult 

to reach by telephone, call collect to Pat Ganblno at (609) 921-3333.

THANK YOU VERT MUCH FOR YOUR HELPI
f Purchase

Ik^rtkAi* IWVr. .

S

6

7

8

9

10

11

11

13

14

Fuel 

Purchase 

Date

Total 

Vehicle 

Mileage

Complete the line showing 

how full the Unk 1$ after 

fuel purchase

^^J^^

^^t^

^^P^^

^^^^

^^^^j^*^

^^J^^

^^^^

^^j^^

^*>'^^!?<^

^^jj^^

HuMber of 

Gallons 

Purchased

Total Cost 

of Fuel

Price 

per Gallon

Mas the

tank 

filled?

[] «S 

[] NO

[] YES 

[]NO

[] YES 

[]HO

[] YES 

[]NO

[] YES 

[]"0

[] YES 

[]"0

[] YES 

[]NO

[J YES 

[]NO

[] YES 

HMD

[] YES 

[]"0

Type of Fue

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[) LEADED 

[] UNLEADED

Purchased

[] REGULAR 

[] PREMIUM 

[] DIESEL

[] REGULAR 

[] PREMIUM 

[] DIESa

[] REGULAR 

[] PREMIUM 

[] DIESEL

[] REGULAR 

[] PREMIUM 

[] DIESEL

[] REGULAR 

[] PREMIUM 

[] DIESa

[] REGULAR 

[] PREMIUM 

[] DIESEL

[] REGULAR 

[] PREMIUM 

[] DIESa

[] REGULAR 

[] PREMIUM 

[] DIESa

[] REGULAR

[] PREMIUM 

[] DIESa

[] REGULAR

[] PREMIUM 

[] DIESa

Please not* any pr*M«i 

related to this purchase;

AFTER THE LAST USE OF THIS VEHICLE ON HAv \l, 1980. PLEASE 

COMPLETE ENTRIES AT THE BOTTOM OF THE hKST PAGE OF THIS LOG.
Purchase 

Nvber..

IS

16

17

18

19

20

21

22

23

24

Fuel

Purchase 

Date

Total 

Vehicle 

Mileage

Complete the line showing 

how full the tank 1s after 

fuel purchase

^^JP*^

^^^^

^^^^^

^^P*^

^^^^

^^^^^

^^^^

^^^^

^^JJJP^

^ ^jj^^

Niaaber of 

Gallons 

Purchased

Total Cost 

of Fuel

Price 

per Gallon

Has the

tank 

filled?

[] YES

UNO

[] YES 

[]MO

[] YES 

[]NO

[] YES 

[]NO

[] YES 

[]NO

[] YES 

[] NO

[] YES 

[] NO

[] YES 

[]NO

[] YES 

[]NO

[] tES

[] NO

Type of Fuel Purchased

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] LEADED 

[] UNLEADED

[] REGULAR 

[] PREMIUM 

[] DIESa

[] REGULAR 

[] PREMIUM 

[] DIESEL

[] REGULAR 

[] PREMIUM 

[] DIESEL

[] REGULAR 

[] PREMIUM 

[] DIESEL

[] REGULAR 

[] PREMIUM 

[] DIESEL

[] REGULAR 

[] PREMIUM 

[] DIESEL

[] REGULAR 

[] PREMIUM 

[] DIESEL

[] REGULAR 

[] PREMIUM 

[] DIESEL

[] REGULAR 

[] PREMIUM 

[] DIESEL

[] REGULAR 

[] PREMIUM 

[] DIESa

Please note any prob.1« 

related to this purchase

GPO 1C* 525

AFTER THE LAST USE OF THIS VEHICLE ON MAY 31, 1980, PLEASE 

COMPLETE ENTRIES AT THE BOTTOM OF THE FIRST PAGE OF THIS LOG.
B. FUEL PURCHASE SURVEY INSTRUCTIONS

May

Please keep the Fuel Purchase Log in your vehicle.

Fill in now:

The vehicle make, model year, and model name.

If you know the (approximate) number of gallons that the fuel 

tank of the vehicle holds, please fill in that number.

On Thursday, May 1, or the first time 

you use the vehicle after that date:"

Put the number of miles shown on the total mileage meter 

(odometer) of the vehicle.

After you start the engine for the first time, complete the 

line showing (approximately) the level of fuel in the tank of 

the vehicle.

Starting on May 1 and continuing 

until May 31:

Use your vehicle and purchase fuel as you normally would during 

this period.

Fill in entries for each purchase of fuel (see reverse side of 

these instructions).

On Saturday, May 31:

After your last use of the vehicle on May 31, complete the 

entries showing the number of miles on the total mileage meter 

(odometer), and the approximate level of fuel in the tank of 

the vehicle.

After your last use of the vehicle on May 31, please keep the Log 

near your telephone. We will be calling you within a few days 

after May 31 to obtain the information on fuel purchases 

from you.

We will be sending you an additional Log for your fuel purchases 

during the month of June.

If you have a question about your Fuel Purchase Log, please call 

collect to (609) 921-3333 any weekday between 9 a.m. and 4 p.m., 

eastern time. Ask to speak to Patricia Gambino.

Turn page for additional instructions

91
Please make the following entries for each fuel purchase for your 

vehicle:

Fuel purchase date Show the month and day each time gasoline 

or diesel fuel is added to the vehicle.

Total vehicle mileage This is the number of miles shown on the 

total mileage meter (odometer) of the 

vehicle at the time you stop for fuel.

Line showing how full 

tank is after fuel 

purchase

Number of gallons 

purchased

Most vehicles have a meter showing the 

(approximate) level of fuel in the fuel 

tank. After fuel has been added to the 

tank, and you have started your engine 

again, draw in the line showing the 

approximate level of fuel.

Make this entry to the nearest tenth of a 

gallon (for example: 3.4 or 11.8).

Total cost of fuel Show total cost of the gasoline or diesel 

fuel. Do not include cost of oil or other 

items, if any, purchased at the same time.

Price per gallon This is the price per gallon for the 

type of gasoline or diesel fuel you pur 

chase, to the nearest tenth of a cent.

Was the tank filled? Generally, this answer should be marked 

"YES" if you had asked to have the tank 

filled (and the amount of the purchase 

was not limited by the service station). 

The answer would usually be "NO" if you 

have asked for a certain number of gal 

lons or for a dollar amount, or the 

amount of the purchase was limited by 

the service station.

Type of fuel purchased Mark an answer in each column that 

applies.

Any problem related 

to purchase?

Note any problems or difficulties in ob 

taining fuel when you wanted it, or in 

the amount or type of fuel that you wanted

IMPORTANT: Please keep the purchase log in your vehicle. The

entries should be made for each purchase of fuel, even 

when someone other than the main driver of the vehicle 

makes the purchase.

92
Response Analysis Corporation 

PHnceton, New Jersey 

RAC 4183

C. BACKGROUND QUESTIONNAIRE

U.S. DEPARTMENT OF ENERGY

National Survey of 

Fuel Purchases (or Vehicles

BACKGROUND QUESTIONNAIRE

0MB No. 38-R0438

EIA-429

Form TV (021880)

1. At the time of our interview in 

(READ LIST BELOW). (MONTH/YEAR)

, the members of your household included

HOUSEHOLD 

MEMBER # RELATIONSHIP

SEX

FEMALE MALE AGE

RESPONDENT

10

11

12

2. Is there anyone living in your household now who 

was not a member of your household in (MONTH/YEAR)?

j[] YES -- Who is that? (ADD TO LIST) c89 

o[] NO

3. Mas there anyone living in your household in (MONTH/ 

YEAR) who is not a member of your household now?

YES Who is that?

HOUSEHOLD MEMBER #(S) FROM TABLE ABOVE 

o[] NO

93
Background Questionnaire - 2 

Form TV, PV

4. At the time we spoke with your household in (MONTH/YEAR) you had a (READ LIST BELOW).

VEHICLE #

VEHICLE 

TYPE

MAKE

MODEL YEAR

MODEL NAME

o02-a09

14-16 

17-19 

20-22 

23-26

5. Do you still have 

(VEHICLE LISTED 

ABOVE)?

IF YES:

6. What is the name 

of the main 

driver?

7. FILL IN HOUSE 

HOLD MEMBER # 

FROM Q. 1

1[] YES 

0[] NO

J[] YES 

o[] NO

J[] YES 

0[] NO

I[] YES 

0[] NO

J[] YES 

o[] NO

55-55

IF HOUSEHOLD STILL HAS ONE OR MORE VEHICLES LISTED IN Qs. 4/5, ASK:

8. Do you or other members of your household own or 

have the regular use of any cars, trucks, vans, 

or similar vehicles, in addition to (MAKE AND 

MODEL YEAR FROM Q. 4)?

9. How many additional vehicles do you have?

2[] YES

o[] NO -- SKIP TO Q. 19

ONE 

TWO 

THREE 

'] FOUR OR MORE

SKIP TO Q. 12

IF HOUSEHOLD NO LONGER HAS ANY OF THE VEHICLES LISTED IN Qs. 4/5. ASK:

10. Do

or

or

you or other members of your household now own,

have the regular use of any cars, trucks, vans,

similar vehicles?

11. How many vehicles do you have?

j[] YES

0[] NO SKIP TO Q. 19

1

I

4

1

=

ONE

TWO 

THREE

FOUR OR MORE

ASK Q. 12

94
Background Questionnaire - 3 

Form TV, PV

ASK QUESTIONS 12 - 18 ABOUT EACH VEHICLE NOT LISTED IN Q. 4

12. Which type(s) is it (are they)?

STATION WAGON

AUTOMOBILE

JEEP OR SIMILAR VEHICLE

PASSENGER VAN OR MINIBUS

CARGO VAN

PICKUP TRUCK

OTHER TRUCK

MOTOR HOME

OTHER (SPECIFY):

13. Please tell me the make and model MAKE

year (of each one). (ENTER LAST

TWO DIGITS OF MODEL YEAR.) MODEL YEAR

14. What is the model name (of each one)? MODEL NAME

15. In what month and year did you get it? MONTH

YEAR

16. How many miles has it been driven since

you have had it? MILES

DON'T KNOW

17. What is the name of the main driver? NAME

18. FILL IN HOUSEHOLD MEMBER # FROM Q. 1 . HOUSEHOLD

MEMBER t

eBS

5

Olll

02\ j

03 L 1

04[]

os[]

06[]

07[]

os[]

» 2Jt]

19

19

[]

086 087 088

6

w[]

02[]

OJ[]

04[]

05[]

06[]

07[]

OB[~\

2j[]

19

19

[]

7

OJL j

02 L J

o^r j

04 r j

05[]

06 L J

07[]

08\ J

2i[]

19

19

[]

8

Ol[]

07[]

03U

04[]

05[]

06 r j

07f J

osf j

«[]

19

19

C]

14

IS

16- 

17

IB 

IS

20-

21

23-

24

rt c

26-

95
Background Questionnaire - 4 

Form TV, TN

ASK EVERYONE

19. Are you planning to move any time within 

the next six months?

YES

NO -- SKIP TO Q. 21

IF "YES" ON Q. 19. ASK:

20. Would you please give me the name, address, and telephone number of two friends or rela 

tives who will know where you can be reached after you move?

NAME: 

STREET: 

CITY AND STATE: 

PHONE:

RELATIONSHIP 

TO RESPONDENT:

( )

NAME: 

STREET: 

CITY AND STATE: 

PHONE:

RELATIONSHIP 

TO RESPONDENT:

( )

21. Thank you. We will be mailing the Fuel Purchase booklet(s) to you before the end of the 

month, and we'll be calling you again to explain the procedure to you. Have a nice 

evening (day).

(Intervi ewer) (Date completed) (Time completed)

96
D. U.S. Census Regions

S Dak.

West North Central

Iowa

NORTH CENTRAL

97
GLOSSARY

Census Region. Refers to a grouping of States and the District of 

Columbia into a region depending on their population and geographic 

location. In this survey, the States and the District of Columbia 

were grouped into four regions:

Northeast

Maine

Vermont

New Hampshire

Massachusetts

Connecticut

Rhode Island 

New York 

Pennsylvania 

New Jersey

North Central

Ohio

Michigan

Indiana

Illinois

Wisconsin

Minnesota

Iowa

Missouri 

Kansas 

Nebraska 

South Dakota 

North Dakota

South

Maryland

Delaware

District of Columbia

West Virginia

Virginia

North Carolina

South Carolina

Georgia

Florida

Kentucky

Tennessee

Alabama

Mississippi

Louisiana

Arkansas

Oklahoma

Texas

West

Montana

Wyoming

Colorado

New Mexico

Arizona

Utah

Idaho

Washington

Oregon

Nevada

California

Note: Alaska and Hawaii are normally considered parts of the western 

region, but were not included in the sample for this survey. A map of the 

Census regions is provided in Appendix D.

99
Drivers refers to household members who can drive a car, truck, or 

motorcycle. Persons who can drive but do not ordinarily do so are also 

included.

Expenditures refers to the total cost of the gasoline or diesel fuel added 

to the vehicle's tank including taxes. Expenditures do not include the 

cost of oil or other items that may have been purchased at the same time 

as the fuel.

Family Income is the total combined income in 1977 for the NIECS households 

(1978 for Screener households) from all sources before taxes and deductions, 

It includes wages, salaries, tips, commissions, and income from social 

security, pensions, interest, dividends, rent, public assistance, and 

unemployment insurance. Family income includes the total income for all 

family members who lived in the household, regardless of whether they were 

living there at the time of the interview. Income of nonfamily members of 

the household is not included. Family includes the following types of 

relationships: mother, father, sister, brother, son, daughter, father-inlaw, uncle, aunt, niece, grandchild, and similar relationships.

Fill-up. A fuel purchase was recorded as a fill-up when the attendant 

was asked to fill the tank. (When the attendant was asked for a certain 

number of gallons or for a dollar amount of fuel, the instructions to the 

respondent called for usually not recording this as a fill-up.)

Fuel Inventory as a Percent of Tank Capacity is an average over all 

vehicles of their average percents full during a month (see Percent Full 

During a Month).

It is given by:

= I Wj:

i

where

w. = the weight for the i vehicle in the sample;

c, = the tank capacity (in gallons) for the i vehicle;

and

p. = the average percent full for the month of the i vehicle.

100
Fuel Used is the respondent's report of the type of fuel that is typically 

put in the fuel tank.

Fuel Tank Capacity is the size of the vehicle's fuel tank in U.S. gallons. 

Data for automobiles was taken from Automotive News which provides fuel 

tank size for foreign and U.S. automobiles. Data for trucks and vans were 

the figures provided by the respondent on the fuel purchase log.

Gallons Consumed refers to the number of gallons of fuel used by the vehicle 

during the month. Gallons consumed is equal to gallons purchased minus the 

difference in the fuel tank levels at the beginning of the month and at the 

end of the month. For example, consider a vehicle with a 20-gallon tank 

that was half full at the beginning of the month and three-quarters full at 

the end of the month. Gallons consumed in this case would equal the gallons 

purchased minus one-fourth of the tank capacity or five gallons. For 

vehicles missing fuel meter readings, the gallons consumed is the same as 

gallons purchased.

Gallons Purchased refers to the total number of gallons of fuel added to 

the household vehicle's tank.

Gallons in Tanks refers to the amount of fuel stored in vehicle tanks. 

Gallons in tanks for a vehicle is derived from the average percent of tank 

full for the month and the vehicle tank size.

Gasoline Lines Data. In June 1979, Response Analysis Corporation (RAG) 

began collecting data for the EIA on the fuel-purchasing situation faced 

by motorists in the United States (48 contiguous States and the District 

of Columbia). The data are obtained from a subsample of the residential 

energy consumption surveys being conducted. Households participating in 

the monthly transportation interviews are asked a series of questions 

concerning the fuel-purchasing situation in their area during the two 

weeks preceding the interviews which are performed at the end of each 

month.

Household includes up to 12 persons who occupy a housing unit.

"Occupy" means the housing unit was the person's usual or permanent 

place of residence at the time of the first field contact. The household 

includes babies, lodgers, boarders, employed persons who live in the 

housing unit, and persons who usually live in the household but are away 

traveling or in the hospital. The household does not include persons 

who are normally members of the household but who were living away from 

home such as college students or members of the armed forces at the time 

of the interview. By definition, the count of households is the same as 

the count of occupied housing units.

A "housing unit" is a structure or part of a structure where a household 

(family or individual) lives or could live. It has a separate entrance 

from the outside or from a common hall or lobby, or it has cooking faci 

lities for the exclusive use of the occupants. Housing units do not

101
include group quarters such as prisons, hospitals, dormitories, nursing 

homes, fraternity houses, or convents. Hotel or motel rooms, mobile homes, 

boats, tents, or trailers are considered housing units if occupied. 

"Occupied housing unit" means that someone was living in it as his/her 

usual or permanent place of residence at the time of the first field 

contact.

Owner/Renter 'owner' means the owner or co-owner is a household member of 

the unit, even if the unit is mortgaged or not fully paid for. 'Renter' means 

that no member of the household is the owner or co-owner, and the unit is 

contracted to the household for either a fee, for services rendered, or 

'rent free'. Unless shown separately, 'rent free' households are 

grouped together with renters.

Metropolitan refers to households located within Standard Metropolitan 

Statistical Areas (SMSA's) as defined in the 1970 Census. Except in 

New England, an SMSA is a county or group of contiguous counties that 

contains at least one city of 50,000 inhabitants or more, or "twin 

cities" with a combined population of at least 50,000. The contiguous 

counties are included in an SMSA if, according to certain criteria, they 

are essentially metropolitan in character and are socially and economi 

cally integrated with the central city. In New England, SMSA's consist 

of towns and cities, rather than counties. "Nonmetropolitan" refers to 

households not located within SMSA's as defined in the 1970 Census.

Miles Driven refers to the total number of miles the household vehicle 

was driven during the reporting month. Miles driven is computed by 

subtracting the vehicle's odometer reading at the first of the month 

from its odometer reading at the end of the month.

Percent of Tank Full refers to the proportion of the vehicle's tank that 

is filled with fuel. The percent of tank full is derived from the fuel 

meter reading showing the level of fuel in the tank. The respondent 

recorded the fuel meter reading on a pictorial representation of the 

fuel meter after starting the engine at each of the following times:

 Beginning of the month (before the first use of the vehicle 

on the first day of the month).

 End of the month (after the last use of the vehicle on the 

last day of the month).

 After each purchase.

Percent of Tank Full Before Purchase refers to the level of fuel in the 

tank before fuel was added at the time of purchase. The percent of tank 

full before purchase was calculated by subtracting the proportion of the 

tank filled with newly purchased fuel (gallons purchased divided by the 

tank capacity in gallons) from the proportion of the tank full after 

purchase.

Percent Full Between Purchases is the average of the percent of tank full 

after the earlier purchase and the percent full before the next purchase.

102
It is given by:

"p - (Pa + pb>/ 2 » 

where

Pa = the percent full after the earlier purchase; 

and

Pb = the percent full before the next purchase.

One may consider the beginning of a month as "after a purchase" and the 

end as "before a purchase."

Percent Full During a Month represents the average position of the 

vehicle's fuel guage during the month of recordkeeplng and is derived 

for each vehicle from its average percents full between purchases. 

Suppose there are m purchases during a month, numbered 1 to m. Call the 

beginning of the month, purchase number 0, and the end of the month, 

purchase m + 1. Then the average percent full during the month is given 

by:

m _ 

Z ?j dj 

_ 3=0

dj

p = m 

ZJ-o

where

Pj = the average percent full between purchases j and j + 1 

and

dj = the number of days between purchases j and j + 1.

The diagram on the following page describes the fuel purchases and use 

for a vehicle for one 30-day month. Initially, the tank was three-quarters 

full. The first purchase, on the 15th day of the month, filled the tank 

halfway; the second purchase, on the 20th day, filled the tank completely. 

On the last day of the month the tank was half full.

The average percent of tank full for the first 15 days was (75 + 25)/2 

or 50 percent; the five days between the first and second purchases it was 

(50 + 0)/2 or 25 percent; and for the last 10 days it was (100 + 50)/2 or 

75 percent. Averaging, these values using the number of days between 

purchases as weights, we get p^ = [(15 x5 + 5x25 + 10x 75)/30] = 54.2 

percent, approximately, as the average percent of the tank full for the 

month.

103
Percent of

Tank Full

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10 IB 20 

Day* of the Month

Purchase refers to the occasion when fuel is added to the vehicle's tank 

regardless of whether cash, check, or credit is used for payment.

Renters includes households which pay rent and households which occupy 

housing on a rent-free basis.

Rural refers to nonurban areas.

Size of Vehicle refers to industry-defined categories based generally 

on the vehicle's intended market, body size, and body configuration. 

Vehicles are grouped into the following categories based on the year, 

make, and model of the vehicle: subcompact (for example, Vega, Pinto), 

compact (Nova, Maverick), intermediate (Malibu, Torino), full size 

(Impala, LTD), pickup (CIO, F100), and van (Maxivan, Econoline). Pick 

ups and vans are included in the 'other' category in the tables.

Urban includes housing in areas of 2,500 or more inhabitants as defined 

in the 1970 Census.

Used on the Job means the vehicle was used at work for purposes other 

than commuting to or from work.

104
Vehicles are all motorized vehicles used by U.S. households for personal 

transportation excluding motorcycles, mopeds, large trucks, and buses. 

They include automobiles, station wagons, passenger vans, cargo vans, 

motor homes, pickup trucks, jeeps, or similar vehicles owned (being bought) 

by one or more members of the household. Vehicles also include company 

cars, pickup trucks, taxicabs, and other motorized vehicles that are not 

owned by household members but which are regularly available to household 

members for their personal use and ordinarily kept at home. Cars rented 

or leased for one month or more are included.

Not included are motorized vehicles used solely for business purposes, 

such as police cars or other Government-owned vehicles. Dismantled or 

dilapidated vehicles in an early stage of being junked or immobile 

vehicles used only as a source of power for some piece of machinery are 

not included. Vehicles used primarily for competition or display pur 

poses such as racing cars, stock cars, or antique cars not used as 

passenger automobiles are not included. Vehicles kept by students who 

live away at school or kept by persons who reside on military bases or 

similar institutional settings are not included.

Note: In the NIECS interview, vehicles were defined to include 

motorcycles, mopeds, and motorized bicycles, large trucks, and buses, 

but these vehicles have been excluded from the Transportation Panel 

and, therefore, do not appear in the above definition.

105 * U . S. GOVERNMENT PRINTING OFFICE 1982 361-068/2018

U.S. Department of Energy 

Energy Information Administration 

National Energy Information Center, El-20 

Forrestal Building 

Washington, D.C. 20585

FIRST—CLASS MAIL 

POSTAGE & FEES PAID 

U.S. DEPT. OF ENERGY

PERMIT NO. G20

FIRST CLASS MAIL

OFFICIAL BUSINESS

PENALTY FOR PRIVATE USE, $300