PUBLIC TRANSPORT TIMING: CAUSES OF DELAY ARISING DURING BUS JOURNEYS

Bus movement times were studied on three routes. An attempt was made to analyse delays at traffic-light-controlled intersections in the city centre along these routes. In the study it was concluded that: delay times are seldom more than 20 per cent of the mean travel time and on average vary from 4 to 10 per cent of the mean travel time; about 80 per cent of the delays are caused by traffic-light-controlled intersections; delays due to congestion caused by other vehicles are a substantial minor factor; boarding time per passenger on one-man-operated buses is twice that on two-man operations; the timetable allowance for inbound journeys is not realistic compared with the time allowed for outbound journeys; in this case, very little time would be saved by rerouteing of the services; the average running speeds of the buses varied between 25 and 50 km per hour, depending on the route, the average travel speeds being higher than the scheduled speeds; there was very little variation in mean travel time between that on average weekdays and on Saturdays. /TRRL/

• Corporate Authors:

  Dundee University

  Department of Civil Engineering
  Dundee, ZZ Scotland   
• Authors:
  • Ramlan, N
  • Hassan, N M S
• Publication Date: 1977-4

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 87 p.

Subject/Index Terms

• TRT Terms: Boarding; Bus priority; Bus stops; Bus transit; Buses; Central business districts; Intersections; Public transit; Routing; Scheduling; Signalized intersections; Speed; Speed and delay studies; Theses; Traffic congestion; Traffic delays; Traffic signal preemption; Traffic signals; Travel time; Trip length
• Geographic Terms: United Kingdom
• Old TRIS Terms: Bus transportation (Intracity)
• ITRD Terms: 1272: Bus; 632: Congestion (traffic); 9010: Delay; 697: Journey time; 455: Junction; 648: Priority (traffic); 5408: Speed; 8597: Thesis; 311: Town centre; 565: Traffic signal; 8119: United Kingdom
• Subject Areas: Administration and Management; Highways; Operations and Traffic Management; Passenger Transportation; Planning and Forecasting; Public Transportation; I72: Traffic and Transport Planning; I73: Traffic Control;

Filing Info

• Accession Number: 00172550
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Monograph
• Files: ITRD, TRIS
• Created Date: Jun 28 1981 12:00AM