A MODIFIED ALGORITHM FOR DYNAMIC ADVISORY SPEED SIGNS

Advisory speed signs are designed to facilitate the formation of platoons and promote the flow of traffic in a 'green wave'. The speeds are computed to create a safe delay between the start of the green phase and the arrival of the platoon at speed. Observation of the performance of an earlier algorithm in an on-road trial suggested that drivers tended to arrive at the signals too early when very low speeds were advised. This paper presents a modification to the original algorithm design to correct for this by adjusting for the time and distance required by vehicles to slow to the advised speed. (Author/TRRL)

• Supplemental Notes:
  • Proceedings of the 9th Australian Transport Research Forum, Adelaide, May 15-16, 1984.
• Corporate Authors:

  South Australia Department of Transport, Australia

  Victoria Square
  Adelaide, South Australia,   Australia 
• Authors:
  • Gipps, P G
• Publication Date: 1984

Media Info

• Features: Figures; References;
• Pagination: p. 79-87
• Serial:
  • Publication of: South Australia Department of Transport
  • Publisher: South Australia Department of Transport, Australia

Subject/Index Terms

• TRT Terms: Algorithms; Conferences; Driver information systems; Green interval; Mathematical models; Motor vehicles; Speed; Time; Traffic flow; Traffic platooning; Traffic signal control systems; Traffic signals; Traffic signs; Traffic speed; Vehicles
• Uncontrolled Terms: Change; Decreases
• ITRD Terms: 8525: Conference; 9009: Decrease; 597: Linked signals; 6473: Mathematical model; 5408: Speed; 5414: Time; 565: Traffic signal; 1255: Vehicle
• Subject Areas: Highways; Operations and Traffic Management; Vehicles and Equipment; I71: Traffic Theory;

Filing Info

• Accession Number: 00391071
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, TRIS, ATRI
• Created Date: Mar 29 1985 12:00AM