Traffic Signal Plans to Decongest Street Grids

This project will entail synchronizing green phases across neighboring traffic signals to the backward waves that propagate through queues. The goal is to ensure that green phases are displayed only after queues recede on street segments downstream. In this way, traffic movements are not blocked when they receive green signals. Intersections will be added or removed from this coordination scheme as queues expand or contract over a rush. Unlike previous efforts in this realm, the present research will focus on backward signal progression on two-way streets and integrating this backward scheme with other signal-timing strategies used elsewhere in a city. As regards the latter focus, the research team will pursue a strategy in which intersections inside a congested downtown district are synchronized in reverse fashion, while intersections in outlying neighborhoods are coordinated in such ways as to feed traffic to the downtown district at the highest rates feasible.

• Record URL:
  https://nicr.usf.edu/2022/01/20/1-2-1-supply-side-management-of-auto-traffic-2/

Language

• English

Project

• Status: Active
• Funding: $65333
• Contract Numbers:

  69A3551947136

  79070-00-C

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590

  National Institute for Congestion Reduction

  University of South Florida
  Tampa, FL  United States  33620
• Managing Organizations:

  National Institute for Congestion Reduction

  University of South Florida
  Tampa, FL  United States  33620
• Project Managers:

  Li, Xiaopeng

• Performing Organizations:

  University of California, Berkeley

  444 Davis Hall
  Berkeley, CA  United States  94720
• Principal Investigators:

  Cassidy, Michael

• Start Date: 20200909
• Expected Completion Date: 20210930
• Actual Completion Date: 20221028
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Central business districts; Green interval (Traffic signal cycle); Oversaturation (Traffic flow); Signalized intersections; Traffic congestion; Traffic delays; Traffic queuing; Traffic signal control systems
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting;

Filing Info

• Accession Number: 01835742
• Record Type: Research project
• Source Agency: National Institute for Congestion Reduction
• Contract Numbers: 69A3551947136, 79070-00-C
• Files: UTC, RIP
• Created Date: Feb 9 2022 6:22PM