TEMPORARY LOSSES OF HIGHWAY CAPACITY AND IMPACTS ON PERFORMANCE

This research devises highway capacity losses and delay estimates, which are caused by temporary events, such as breakdowns, less than optimal traffic controls, construction work zones, extreme weather conditions, and traffic accidents. The study scope includes all rural and urban freeways and the main arterial highways in the United States highway system. The research utilizes traffic engineering models, engineering judgment and the best data available. Results indicate that transient capacity losses due to adverse weather, less than optimal signal timing, vehicle breakdowns, construction work zones, and traffic accidents caused an estimated 2.3 billion vehicle hours of delay on principal arterial highways and U.S. freeways in 1999.

• Record URL:
  http://www-cta.ornl.gov/cta/Publications/Reports/ORNL_TM_2002_3.pdf
• 
• Corporate Authors:

  Oak Ridge National Laboratory

  P. O. Box 2008
  Oak Ridge, TN  United States  37831

  Department of Energy

  1000 Independence Avenue, SW
  Washington, DC  United States  20585
• Authors:
  • Chin, S M
  • Franzese, O
  • Greene, D L
  • Hwang, H L
  • Gibson, R C
• Publication Date: 2002-5

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: 78 p.

Subject/Index Terms

• TRT Terms: Arterial highways; Construction; Data collection; Freeways; Highway capacity; Highway traffic control; Impacts; Incident management; Performance; Rural areas; Traffic delays; Traffic engineering; Traffic models; Traffic signal timing; Urban areas; Weather; Work zones
• Geographic Terms: United States
• Subject Areas: Construction; Highways; Operations and Traffic Management; Planning and Forecasting; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00931014
• Record Type: Publication
• Report/Paper Numbers: ORNL/TM-2002/3
• Contract Numbers: DE-AC05-00OR22725
• Files: TRIS
• Created Date: Sep 25 2002 12:00AM