METHODS FOR TRAFFIC ACTUATED CONTROL OF TRAFFIC SIGNALS

STYRNING AV TRAFIKSIGNALER

The main purpose was to develop and test methods for traffic actuated control of isolated signalized intersections. A discussion of the possible application of the methods developed for coordinated signal control is included. The project was carried out in the following stages: criteria for signal control, literature inventory of control strategies, development of strategies, simulation, field tests. It is found that the theoretical background for fixed-time signal timing can to some extent be applied even for vehicle-actuated (Va) signal timing. Va-controllers can be rebuilt and together with equipment for selective bus detection perform active bus priority (vab). The average bus delay can be reduced by 20%. Traffic-actuated control with optimization logic (tol) for minimization of operating costs can reduce bus delay by 40% and average vehicle delay by 25% as compared to Va. Both vab and tol show high benefit-cost-ratios and are found profitable. This report is in two parts. /TRRL/

• Corporate Authors:

  Lund University of Technology, Sweden

  Fack S-22007
  Lind 7,   Sweden 
• Authors:
  • Baang, K L
• Publication Date: 1975

Language

• Swedish

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 167 p.
• Serial:
  • Issue Number: 6

Subject/Index Terms

• TRT Terms: Bus priority; Buses; Costs; Methodology; Operating costs; Optimization; Pretimed traffic signal controllers; Signalized intersections; Surveillance; Traffic actuated controllers; Traffic control; Traffic delays; Traffic signal control systems; Traffic signals
• Uncontrolled Terms: Decreases; Optimum
• Old TRIS Terms: Conveyances
• Subject Areas: Finance; Highways; Operations and Traffic Management; Public Transportation; I73: Traffic Control;

Filing Info

• Accession Number: 00133768
• Record Type: Publication
• Source Agency: Swedish National Road and Transport Research Institute (VTI)
• Report/Paper Numbers: R&D Rpt.
• Files: ITRD, TRIS
• Created Date: Aug 23 1976 12:00AM