RELATIONS BETWEEN TRAVEL-TIME AND TRAFFIC FLOW FOR THE LINKS OF ROAD NETWORKS CONTROLLED BY FIXED-TIME SIGNALS

This paper shows how the traffic network study tool TRANSYT can be used to estimate, for each link of a road network controlled by fixed-time traffic signals, a relationship between travel-time and traffic flow corresponding to any particular settings of the traffic signals, with a view to applying equilibrium methods of traffic assignment to such networks. Estimates are made for the links of a real network, and the extent to which the resulting relationships have the functional form that is requred by the assignment methods is examined. Ways of dealing with links for which the estimated relationships do not have the required form are suggested, and possible procedures for iteratively interleaving traffic control and traffic assignment calculations are outlined.

• Corporate Authors:

  Newcastle-Upon-Tyne University, England

  Department of Civil Engineering, Claremont Tower, NE1 TRU
  Newcastle-Upon-Tyne, Northumberland,   England 
• Authors:
  • CHARLESWORTH, J A
• Publication Date: 1975-7

Media Info

• Features: Appendices; Figures; References;
• Pagination: 20 p.

Subject/Index Terms

• TRT Terms: Equilibrium methods; Networks; Pretimed traffic signal controllers; Roads; Traffic assignment; Traffic control; Traffic flow; Travel time
• Uncontrolled Terms: Road networks
• Old TRIS Terms: Equilibrium methods (Structural)
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00129048
• Record Type: Publication
• Report/Paper Numbers: #13, ISSN 0306-3402 Work Paper
• Files: TRIS
• Created Date: Mar 10 1976 12:00AM