THE EFFECTS OF GIVING BUSES PRIORITY AT JUNCTIONS CONTROLLED BY TRAFFIC SIGNALS. AN EVALUATION METHOD

EFFEKTER AV BUSSPRIORITERING I SIGNALREGLERADE KORSNINGAR. EN VAERDERINGSMETOD

A method is described whereby buses are given priority at traffic light controlled junctions. The effects considered are time gained by passengers and gains by the bus company in the form of fewer stops, better working environment for drivers, and possibility of reducing number of buses in operation. The effects on other vehicular traffic, cyclists and pedestrians are not included. Therefore, if loading at the junction is near capacity, the national economic value of bus priority may be grossly overestimated. Calculations are in two stages. In the first, the difference with and without priority is calculated regarding the mean delay and stopping percentage, for typical high and low traffic conditions. In the second stage, the consequences of these differences are calculated for passengers and the company, per hour and line, and for the junction for 1 year. Stage 1 is based on probability calculations whose reliability is difficult to judge. More accurate calculations would require simulation. A particular uncertainty in stage 2 is the effect of bunching in conjunction with high operating frequency. Choice of representative conditions for high and low traffic is difficult. Indications are, however, that bus priority is cost effective for both passengers and bus company. (TRRL)

  • Corporate Authors:

    Storstockholms Lokaltrafik

    P.O. Box 6301
    Stockholm,   Sweden 
  • Publication Date: 1983

Language

  • Swedish

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 63 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00387601
  • Record Type: Publication
  • Source Agency: Swedish National Road and Transport Research Institute (VTI)
  • Report/Paper Numbers: No. UHR 500
  • Files: ITRD, TRIS
  • Created Date: Aug 30 1984 12:00AM