CRITERIA FOR DEFINING SUB-AREAS FOR USE IN COMPUTER-CONTROLLED AREA TRAFFIC NETWORKS

A theoretical method of defining sub-areas (in the U.K.) is proposed, based on minimising delays and stops within the network. The author considers that a good knowledge of the network is essential to identify the following points prior to applying the method: (a) the class of each junction within the network, when classified according to its reserve capacity (b) the type of each road within the network when classified according to its waiting restrictions and pedestrian interference (c) the junctions within the network which are grouped and linked together for a unit complex operation. It is concluded that in the context of sub-area formation, the method minimises or nearly minimises the overall vehicle delay and vehicle stops in the network with respect to optimum cycle time; however, in practice, when sub-area boundaries are selected, modifications may have to be enforced to account for: (a) local linking (b) arterial roads and (c) skin friction effects. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00410683
• Corporate Authors:

  Printerhall Limited

  29 Newmart Street
  London W1P 3PE,   England 
• Authors:
  • Al-Khalili, A
• Publication Date: 1975-6

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 280-281
• Serial:
  • Traffic Engineering & Control
  • Volume: 16
  • Issue Number: 6
  • Publisher: Hemming Group, Limited
  • ISSN: 0041-0683
  • Serial URL: http://www.tecmagazine.com/

Subject/Index Terms

• TRT Terms: Area traffic signal control; Braking performance; Digital computers; Highway capacity; Information processing; Intersections; Networks; Traffic control; Traffic delays; Traffic signal cycle
• Uncontrolled Terms: Transportation networks
• ITRD Terms: 669: Area traffic control; 643: Capacity (road, footway); 576: Cycle (traffic signals); 9010: Delay; 8673: Digital computer; 455: Junction
• Subject Areas: Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 00131793
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Jun 5 1976 12:00AM