NEW JERSEY DEPARTMENT OF TRANSPORTATION

TRUCK IDLING RESTRICTIONS, STATEWIDE

RACM Analysis

Control Measure:

Truck Idling Restrictions

Description:

Truck idling restrictions will be implemented statewide. It is assumed, in an effort to avoid fines 

and other negative repercussions resulting from continued idling, both fleet and individual truck 

owners will invest in idling reduction technology. The technologies (auxiliary power units, diesel 

driven heating systems and automatic shut-down/start-up systems) range in cost from $500.00 –

$10,000.00. The costs and benefits per 10,000 regulated trucks have been analyzed.

Documentation:

 Department of Energy, Energy Information Administration (EIA), diesel costs: 

http://tonto.eia.doe.gov/oog/info/wohdp/diesel_detail_report.asp

 EPA, gallons of fuel consumed by idling trucks: 

http://www.epa.gov/otaq/smartway/idle-questions.htm#much-fuel

 New Jersey Motor Truck Association, NJ trucking facts: http://www.njmta.org/facts.dws

 Truck idling information: http://www.idleaire.com/industry/implications/

Methodology:

Emission factors, generated using MOBILE6.2, were applied to the number hours of idling 

reduction assumed in order to obtain the emission benefits of imposing truck idling restrictions 

statewide.

Inputs/Assumptions:

 Trucks are operated 306 days per year

 Of the 306 operating days, 153 are assumed to be summer days and 153 days are 

assumed to be winter days for the annual analysis

 A total of 10,000 trucks would be impacted by the regulations per day

 It is assumed that legally required rest breaks (10 hours for every 11 hours on the road) 

and 30 minutes of idling for other stops would be regulated for a total of 10.5 hours per 

day

 MOBILE6.2 was used to determine the average idling emission factors (g/hr)
NEW JERSEY DEPARTMENT OF TRANSPORTATION

TRUCK IDLING RESTRICTIONS, STATEWIDE

RACM Analysis

Results:

Benefits (Emission Reductions):

Ozone Analysis – Daily Benefits (tpd) in New Jersey:

Region % of Total 

Trucks

Total 

Trucks/Day

Total Emission Benefit (tpd)

VOC NOx

NY-NJ-CT

 Bergen 11% 1129 0.0540 0.5251

 Essex 9% 898 0.0430 0.4178

 Hudson 6% 629 0.0301 0.2926

 Hunterdon 1% 149 0.0071 0.0694

 Middlesex 11% 1080 0.0517 0.5022

 Monmouth 6% 587 0.0281 0.2730

 Morris 7% 705 0.0337 0.3278

 Passaic 4% 445 0.0213 0.2071

 Somerset 5% 477 0.0228 0.2217

 Sussex 1% 99 0.0048 0.0463

 Union 6% 647 0.0310 0.3010

 Warren 1% 98 0.0047 0.0458

TOTAL NY-NJ-CT 6,944 0.3322 3.2297

PA-NJ-MD-DE

 Atlantic 4% 412 0.0197 0.1914

Burlington 5% 526 0.0252 0.2446

Camden 6% 576 0.0275 0.2677

Cape May 1% 111 0.0053 0.0518

Cumberland 2% 166 0.0079 0.0772

Gloucester 3% 253 0.0121 0.1175

Mercer 6% 587 0.0281 0.2730

Ocean 4% 355 0.0170 0.1650

Salem 1% 71 0.0034 0.0331

Total - PA-NJ-MDDE 3,056 0.1462 1.4214

Total 10,000 0.4784 4.6511
NEW JERSEY DEPARTMENT OF TRANSPORTATION

TRUCK IDLING RESTRICTIONS, STATEWIDE

RACM Analysis

PM2.5 Analysis – Annual Benefits (tpy) in New Jersey:

Region % of Total 

Trucks

Total 

Trucks/Day

Total Emission Benefit (tpy)

NOx PM2.5 SO2

NY-NJ-CT

Bergen 11% 1,129 79.5107 2.6399 0.1519

Essex 9% 898 63.2684 2.1006 0.1209

Hudson 6% 629 44.3061 1.4710 0.0847

Mercer 6% 587 41.3399 1.3725 0.0790

Middlesex 11% 1,080 76.0524 2.5251 0.1453

Monmouth 6% 587 41.3469 1.3728 0.0790

Morris 7% 705 49.6361 1.6480 0.0948

Passaic 4% 445 31.3543 1.0410 0.0599

Somerset 5% 477 33.5731 1.1147 0.0642

Union 6% 647 45.5847 1.5135 0.0871

TOTAL NY-NJ-CT 7,184 505.9726 16.7991 0.9669

PA-NJ- DE

Burlington 5% 526 37.0339 1.2296 0.0708

Camden 6% 576 40.5358 1.3459 0.0775

Gloucester 3% 253 17.8000 0.5910 0.0340

Total - PA-NJ- DE 1,354 95.3696 3.1664 0.1822

Total 8,538 601.3422 19.9655 1.1491

Cost Benefit Analysis:

Inputs/Assumptions:

 The average cost of idle reduction technology is $5,000.

 Daily and annual cost benefits have been calculated assuming 10,000 trucks will install 

technology on day one. 

 Dividing the initial cost of the idle reduction technology by the assumed 306-day 

operating year annualized daily cost benefits.

 Long-duration idling costs truck owners $1.13 per day, based on the need for more oil 

changes and sooner overhaul costs.

 The average truck consumes 0.8 gallons of fuel per hour of idling.

 The average cost of diesel fuel in New Jersey is $2.62/gallon.

Cost Benefit Results:

Nonattainment Area

Ozone ($/tpd)

VOC NOx

NY-NJ-CT ($142,095) ($14,616)

PA-NJ-MD-DE ($142,095) ($14,616)

Statewide ($142,095) ($14,616)
NEW JERSEY DEPARTMENT OF TRANSPORTATION

TRUCK IDLING RESTRICTIONS, STATEWIDE

RACM Analysis

Nonattainment Area

PM2.5 ($/tpy)

NOx PM2.5 SO2

NY-NJ-CT ($29,536) ($889,585) ($15,456,542)

PA-NJ-DE ($29,536) ($889,585) ($15,456,542)

Statewide ($29,536) ($889,585) ($15,456,542)

* Parentheses denote a cost savings.