Pennsylvania Code › Title 67 - TRANSPORTATION › Part I - Department of Transportation › Subpart A - Vehicle Code Provisions › Article VIII - Administration and Enforcement › Chapter 212 - OFFICIAL TRAFFIC-CONTROL DEVICES › Subchapter D - HIGHWAY TRAFFIC SIGNALS › Section 212.302 - Traffic-control signals

Current through Register Vol. 54, No. 28, July 13, 2024
(a)
Flashing operation of traffic-control signals
. During flashing
						operation, a minimum of two vehicular signal heads on each approach must be
						flashed for the through movement. Any other signal heads may be blanked
						out.
(b)
Warrants
.
						In addition to the criteria in the MUTCD, the following applies:
(1)
Traffic volumes
. The
						traffic volume for channelized right-turn movements may not be included in any
						warrant analysis.
(2)
Vehicle crashes
. The five or more reported crashes within a
						12-month period for Warrant 7 in the MUTCD (relating to Warrant 7, crash
						experience) may include both reportable crashes, and nonreportable crashes that
						are documented in the police files, that occurred within a 12-month period
						during the most recent 3 years of available crash data.
(3)
Warrant 9, ADT volume
						warrant
.
(i) An "ADT volume warrant"
						is added as "Warrant 9" and may be used in addition to the eight warrants
						contained in Sections
						4C.02 through
						4C.09 of the MUTCD (relating to
						Warrants 1 through 8). This warrant must apply at a proposed intersection, an
						intersection revised by a highway construction project, or at the driveway of a
						proposed commercial or residential development where vehicle counts cannot be
						taken. If a traffic-control signal is installed under this warrant, a traffic
						count must be taken within 6 months of the opening of a development or within 2
						years of the opening of a highway. If the traffic volumes do not satisfy this
						warrant, or one or more of the other eight warrants, consideration should be
						given to removing the traffic-control signal and replacing it with appropriate
						alternative traffic-control devices, if any are needed.
(ii) This warrant is satisfied when the
						estimated ADT volumes on the major street and on the higher volume minor street
						or driveway approach to the intersection, when projected using an accepted
						procedure such as put forth in the Trip Generation Manual published by the
						Institute of Transportation Engineers, equals or exceeds the values in either
						Condition A or Condition B:
Condition A-ADT Volume
										Warrant
Number of Lanes for Moving Traffic on Each
										Approach
Estimated ADT*
Major Street
Minor Street
Major Street (Both
										Approaches)
Higher-Volume Minor Street (One
										Direction Only)
100%
70%**
100%
70%**
1
1
10,000
7,000
3,000
2,100
2 or more
1
12,000
8,400
3,000
2,100
2 or more
2 or more
12,000
8,400
4,000
2,800
1
2 or more
10,000
7,000
4,000
2,800
Condition B-ADT Volume
										Warrant
Number of Lanes for Moving Traffic on Each
										Approach
Estimated ADT*
Major Street
Minor Street
Major Street (Both
										Approaches)
Higher-Volume Minor Street (One
										Direction Only)
100%
70%**
100%
70%**
1
1
15,000
10,500
1,500
1,050
2 or more
1
18,000
12,600
1,500
1,050
2 or more
2 or more
18,000
12,600
2,000
1,400
1
2 or more
15,000
10,500
2,000
1,400
* Based on the volume projected to be present within 6
						  months of the opening of the development or within 2 years of the opening of
						  the highway.
** May be used if the 85th percentile speed of the
						  major street traffic exceeds 40 miles per hour or the intersection lies within
						  the built-up area of an isolated community having a population of less than
						  10,000.