EFFECTIVE URBAN TRAFFIC MANAGEMENT AND CONTROL : RECENT DEVELOPMENTS IN SCOOT

The SCOOT Urban Traffic Control system is now operating in over 190 cities and towns worldwide. Since the first system was installed there has been a continuous program of research and development to provide new facilities to meet the requirements of the traffic manager. Version 3.1 introduced in 1996 included active bus priority for the first time. In 1997 SCOOT 4 was released which among other enhancements included logic to provide estimates of vehicle emissions and to allow information from "non-SCOOT" loops placed at or near the stopline to be utilized. This was followed in 1998 with the release of Version 4.2 which included logic to improve the control of flared approaches and provide better recovery when SCOOT is overridden e.g. when controller "hurry call" is used to provide priority to an emergency or light rapid transit (LRT) vehicle. Further facilities have been included in the latest release, Version 4.4. This paper concentrates mainly on the development and testing of three of the new features: emissions optimization, new gating logic and enhanced public transport priority, and on the benefits obtained in testing these facilities. In addition, the other new facilities are described

• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Bretherton, David
  • Bowen, Gareth
  • Wood, Keith
• Conference:
  • Transportation Research Board 82nd Annual Meeting
  • Location: Washington DC, United States
  • Date: 2003-1-12 to 2003-1-16
• Date: 2003

Language

• English

Media Info

• Media Type: Digital/other
• Pagination: 15 p
• Monograph Title: Transportation Research Board 82nd Annual Meeting compendium of papers CD-ROM, January 12-16, 2003, Washington, DC

Subject/Index Terms

• TRT Terms: Adaptive control; Traffic control; Traffic signals
• Subject Areas: Highways; Operations and Traffic Management; Public Transportation; I73: Traffic Control;

Filing Info

• Accession Number: 00941667
• Record Type: Publication
• Files: PATH, TRIS, TRB, ATRI
• Created Date: May 1 2003 12:00AM