ACTUATED COORDINATED SIGNALIZED SYSTEM: PHASE I - OVERSATURATED CONDITIONS, PHASE II - CYCLE-BY-CYCLE ANALYSIS

Traffic congestion is a common problem, due to the increased reliance on automobile use. In a majority of the country, the surface transportation system operates over or at peak capacity, especially during the morning and evening peak rush hours. One problem that frequently occurs in actuated coordinated signalized intersections that are oversaturated is spillback. A major contributing factor in spillback occurrences could be signal timing parameters and arterial coordination. Reallocating the green times between different approaches and utilizing the "wasted green time" occurring on some approaches could improve the overall efficiency of the intersection operation. This project has 2 phases. Phase I presents a linear optimization approach that results in optimization throughput of the system. Phase II introduces a cycle-by-cycle analysis of actuated coordinated signalized intersection system's operations. It also investigates whether changing the coordination and signal parameters on a cycle-by-cycle basis could enhance the effective operation of the system.

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• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/14691
• Corporate Authors:

  Department of Transportation

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

  National Institute for Advanced Transportation Technology

  University of Idaho, Moscow
  115 Engineering Physics Building
  Moscow, ID  United States  83844-0901
• Authors:
  • Khatib, Z
  • Abdel-Rahim, A
  • Judd, G
  • Jagarapu, K
• Publication Date: 2001-11

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 61 p.

Subject/Index Terms

• TRT Terms: Actuated traffic signal controllers; Analysis; Automobiles; Coordination; Green interval; Ground transportation; Linear equations; Motor vehicles; Operations; Optimization; Peak hour traffic; Saturation flow; Signalized intersections; Traffic congestion; Traffic flow; Traffic signal cycle; Traffic signal timing
• Subject Areas: Administration and Management; Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 00823179
• Record Type: Publication
• Report/Paper Numbers: NIATT Report No. N01-20,, Report Budget No. KLK202,, Final Report
• Files: NTL, TRIS, USDOT
• Created Date: Jan 7 2002 12:00AM