Evaluation of Intersection Safety and Capacity Relevant to Signal Timing Design on Arizona's State Highway System

The Arizona Department of Transportation (ADOT) has determined that a comprehensive evaluation of intersection safety and capacity is necessary to address issues with signal timing design. The study is evaluating the current signal timing design with focus on all-red time, yellow change interval and pedestrian clearance interval. The study will compile and analyze state-of-the-practice methods for calculating the all-red times for through-movements, left-turn movements, yellow change intervals, and pedestrian clearance intervals. The main objective of the project will be to develop recommendations for potential updates to the ADOT Traffic Guidelines and Policy (TGP).

Language

• English

Project

• Status: Active
• Funding: $264047.56
• Contract Numbers:

  SPR-763

• Sponsor Organizations:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  Arizona Department of Transportation Research Center

  206 S. 17th Avenue
  ADOT Research Center
  Phoenix, AZ  United States  85007
• Managing Organizations:

  Arizona Department of Transportation Research Center

  206 S. 17th Avenue
  ADOT Research Center
  Phoenix, AZ  United States  85007
• Project Managers:

  Stone, William

• Performing Organizations:

  Kittelson & Associates, Inc.

  2 E. congress St.
  Ste 705
  Tucson, AZ  United States  85704
• Principal Investigators:

  De Guevara, Felipe

• Start Date: 20180427
• Expected Completion Date: 20250630
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Pedestrian clearance interval (Traffic signals); Traffic signal cycle
• Subject Areas: Pedestrians and Bicyclists; ROAD SAFETY DEVICES; TRAFFIC CONTROL;

Filing Info

• Accession Number: 01653291
• Record Type: Research project
• Source Agency: Arizona Department of Transportation
• Contract Numbers: SPR-763
• Files: RIP, STATEDOT
• Created Date: Dec 7 2017 11:38AM