A Highway Design Concept Based on Probabilistic Operational Reliability

This paper will propose an easy to apply design load concept that treats capacity and traffic flow as random variables. It will show that the traffic flow within a volume class is normally distributed and that its standard deviation changes with the volume to capacity ratio. A new definition of capacity is given and estimated. Given the new capacities reliability is described by the costs of breakdowns which are assessed based on the value of travel time savings. The paper will show how the results can be integrated into a cost-benefit analysis.

• Corporate Authors:

  World Conference on Transport Research Society

  Secretariat, 14 Avenue Berthelot
  69363 Lyon cedex 07,   France 
• Authors:
  • Bernard, Michael
  • Axhausen, Kay W
• Conference:
  • 11th World Conference on Transport Research
  • Location: Berkeley CA, United States
  • Date: 2007-6-24 to 2007-6-28
• Publication Date: 2007

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; References; Tables;
• Pagination: 26p
• Monograph Title: 11th World Conference on Transport Research

Subject/Index Terms

• TRT Terms: Benefit cost analysis; Highway design; Highway operations; Incident detection; Traffic congestion; Traffic flow; Traffic volume; Travel time
• Uncontrolled Terms: Traffic flow breakdown
• Subject Areas: Highways; Operations and Traffic Management; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 01117439
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 30 2008 12:31PM