Comparison of Signal Timing Transition Lengths Considering Cycle and Offset Tuning on Arterial

This paper describes how signal timing transition has recently been highlighted with Adaptive Traffic Control Systems (ATCS) that provide advanced traffic signal operations including real-time grouping of coordinated intersections. Signal timing transition occurs when such signal timings as cycles and offsets are changed at coordinated intersections. Setting a proper length of signal timing transition has become in interest for real-time coordination. This paper presents a study verifying the effects of different lengths of signal timing transition. Four different transition lengths were tested and compared in simulation environment. They include a single, double, treble, quadruple cycle length transitions. The number of cycles represents the ones used (interpolation) for transition. Signal timings were controlled to be adjusted uniformly and discretely during a transition period. Transition times considered in the test are within ranges of ±20 percents of cycle lengths. It was found from the study that a single cycle transition performs better than or at least equal to the ones from the other with fifteen different operational conditions, which are developed based on a hypothetical arterial. It was suggested that a single cycle length transition be beneficial when amount of transition is within ±20 percents of cycle lengths.

• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Kim, Jin-Tae
  • Chang, Myung-soon
  • Park, Jaewan
• Conference:
  • Transportation Research Board 85th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2006-1-22 to 2006-1-26
• Date: 2006

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; References; Tables;
• Pagination: 23p
• Monograph Title: TRB 85th Annual Meeting Compendium of Papers CD-ROM

Subject/Index Terms

• TRT Terms: Arterial highways; Coordination; Interpolation; Real time information; Signalized intersections; Simulation; Traffic flow; Traffic signal cycle; Traffic signal timing; Transition elements
• Subject Areas: Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01023149
• Record Type: Publication
• Report/Paper Numbers: 06-1668
• Files: TRIS, TRB
• Created Date: Mar 3 2006 10:45AM