Decision-Making Guide for Traffic Signal Phasing
The objective of this research was to develop an engineering decision-making guide that incorporates both safety and operational impacts in evaluating traffic signal phasing alternatives for conventional intersections. NCHRP Web-Only Document 284, Decision-Making Guide for Traffic Signal Phasing, is available at http://www.trb.org/main/blurbs/181114.aspx. Examples of Signal Phasing Alternatives that are addressed: (1) Left Turns (Protected Only v. Protected/Permitted v. Permitted Only, Leading v. Lagging, Split Phasing, Changes in phasing based on time of day or traffic conditions, Treatment of multiple left-turn lanes) (2) Right Turns (Overlaps with complementary left turns, Treatment of dual right turn lanes) (3) Pedestrians (Concurrent v. Exclusive, Leading Pedestrian Indication) (4) Interactions (Elimination of permitted left turns and right turns on a conflicting pedestrian actuation, Conflicts between U-Turns and Right Turns)
Language
- English
Project
- Status: Completed
- Funding: $600000
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Contract Numbers:
Project 03-118
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Sponsor Organizations:
Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590American Association of State Highway & Transportation Officials (AASHTO)
444 North Capitol Street, NW, Suite 225
Washington, DC United States 20001National Cooperative Highway Research Program
Transportation Research Board
500 Fifth Street, NW
Washington, DC United States 20001 -
Project Managers:
Derr, B
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Performing Organizations:
4000 WestChase Boulevard, Suite 530
Raleigh, NC United States 27607 -
Principal Investigators:
Daily, Christopher
- Start Date: 20150813
- Expected Completion Date: 20190831
- Actual Completion Date: 0
- Source Data: RiP Project 37563
Subject/Index Terms
- TRT Terms: Crashes; Decision making; Fatalities; Guidelines; Signalized intersections; Traffic engineering; Traffic safety; Traffic signal phases; Traffic signal timing
- Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;
Filing Info
- Accession Number: 01543349
- Record Type: Research project
- Source Agency: Transportation Research Board
- Contract Numbers: Project 03-118
- Files: TRB, RIP
- Created Date: Nov 13 2014 1:01AM