TRAFFIC ENGINEERING MEASURES IN FAVOUR OF PUBLIC TRANSPORT. MEASUREMENTS OF BUS JOURNEY TIME IN KARLSTAD

TRAFIKTEKNISKA AATGAERDER TILL FOERMAAN FOER KOLLEKTIVTRAFIKEN. MAETNINGAR AV BUSSARS FRAMKOMLIGHET I KARLSTAD

This report examines the effect of road alignment on bus journey times, and concludes that irregularities give rise to variations in these. The effects of unsatisfactory alignment on bus passengers should be investigated. In present traffic conditions, bus mobility can be enhanced by the provision of separate bus lanes. The report examines the different ways in which these can be made available. It is shown that bus lanes enable public transport to attain higher speeds and better regularity, as long as the traffic load is below capacity. With the traffic signal strategies used at present, buses are generally delayed at signals by 10-20% of total journey time in metropolitan areas. This delay depends on the number of signals along the route but also on the time of day, the synchronisation of signals, etc. By proper planning and cooperation between the road authority and the bus undertaking, delays at signals can be reduced by passive or active priority measures. Passive measures are the provision of separate bus lanes and phasing of signals, while active measures entail the provision of detector units on buses which actuate the signals. /TRRL/

  • Corporate Authors:

    Utredningen om Kollektivtrafik I Iaetorter

    C/O Kommunikationsdepartementet, Fack
    Stockholm 16,   Sweden 
  • Publication Date: 1975

Language

  • Swedish

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 123 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00134254
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Sep 4 1981 12:00AM