A simple forward-backward procedure for real-time signal timing adjustment on oversaturated arterial networks

Under oversaturated traffic conditions, signal timing needs to be adjusted based on real-time traffic performance measures. Building upon the recently proposed oversaturation severity index (OSI), the authors develop a simple forward-backward procedure (FBP) to manage oversaturation. The forward process aims to increase green time by searching available green time which can be taken from side streets or conflict phases, therefore improving the throughput for main streets; and the backward process is to gate the traffic at some intersections to prevent residual queues and downstream queue spillback when available green time increase is insufficient. The FBP is designed for real-time implementation, although it is also applicable for off-line signal timing adjustment. The simulation tests for the network in the City of Pasadena, CA indicate that the FBP can effectively and efficiently reduce oversaturation.


  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 1126-1131
  • Monograph Title: 14th International IEEE Conference on Intelligent Transportation Systems (ITSC 2011)

Subject/Index Terms

Filing Info

  • Accession Number: 01566075
  • Record Type: Publication
  • ISBN: 9781457721984
  • Files: TRIS
  • Created Date: May 20 2015 2:33PM