On the Impacts of Bus Stops near Signalized Intersections: Models of Car and Bus Delays

Models are formulated to predict the added vehicle and person delays that can occur when a bus stop is located a short distance upstream or downstream of a signalized intersection. Included in the set of models are those that predict the expected delays that cars collectively incur when a bus blocks one of multiple lanes while loading and unloading passengers at the stop. Others in this set predict the expected added delays incurred by the bus due to car queues. Each model is consistent with the kinematic wave theory of highway traffic, as is confirmed through a battery of tests. Each accounts for the randomness in both bus arrival times at a stop, and the durations that buses dwell there to serve passengers. Though the models are analytical in form, solutions come through iteration. Hence model applications are performed with the aid of a computer. The applications presented herein show that bus delays can often be shortened by placing the bus stop downstream of its neighboring signalized intersection, rather than upstream of it. In contrast, car delays are often shortened by placing the stop some distance upstream of the intersection, rather than downstream. The authors further show how exerting a measure of control on bus arrivals can further enhance these benefits to cars without further delaying the buses. The models are also used to assess the net person delays collectively incurred by car- and bus-travelers.

• Record URL:
  http://its.berkeley.edu/publications/UCB/2014/VWP/UCB-ITS-VWP-2014-1.pdf
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/882276150
• Corporate Authors:

  University of California, Berkeley

  Institute of Transportation Studies
  McLaughlin Hall
  Berkeley, CA  United States  94720

  University of California, Berkeley

  Center for Future Urban Transport, McLaughlin Hall
  Berkeley, CA  United States  94720-1720

  Volvo Research and Educational Foundations, VREF, Sweden

  ,   Sweden 
• Authors:
  • Gu, Weihua
  • Gayah, Vikash
  • Cassidy, Michael J
  • Saade, Nathalie
• Publication Date: 2014-2

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; References;
• Pagination: 28p

Subject/Index Terms

• TRT Terms: Bus stops; Farside (Bus stops); Kinematics; Location; Mathematical models; Nearside (Bus stops); Traffic delays; Traffic queuing
• Subject Areas: Data and Information Technology; Operations and Traffic Management; Public Transportation; I71: Traffic Theory; I72: Traffic and Transport Planning; I73: Traffic Control;

Filing Info

• Accession Number: 01533081
• Record Type: Publication
• Source Agency: UC Berkeley Transportation Library
• Report/Paper Numbers: UCB-ITS-VWP-2014-1
• Files: UTC, TRIS, RITA, ATRI
• Created Date: Aug 7 2014 10:54AM