Rebuilding a Signalised Intersection into a Roundabout: A Social Cost Benefit Analysis

Every year 1,500 people die on the roads of Belgium. A large share of these accidents happens on intersections. The roundabout seems to be a solution to lowering the number of accidents. This article looks at the effects of rebuilding a signalized intersection into a roundabout. The paper determines if it is economically efficient to replace an existing signalized intersection with a roundabout and that the benefits are larger than the costs. The conclusion of this article is that the transformation of a signalized intersection into a roundabout provides a net benefit to society. The transformation makes traffic smoother and safer. The benefits of this are larger than the increased environmental cost and the cost of rebuilding. A sensitivity analysis shows that the results are very robust for changes in accidents, time and infrastructure costs.

• Corporate Authors:

  World Conference on Transport Research Society

  Secretariat, 14 Avenue Berthelot
  69363 Lyon cedex 07,   France 
• Authors:
  • Delhaye, Eef
• Conference:
  • 10th World Conference on Transport Research
  • Location: Istanbul , Turkey
  • Date: 2004-7-4 to 2004-7-8
• Publication Date: 2004

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; References; Tables;
• Pagination: 19p
• Monograph Title: 10th World Conference on Transport Research

Subject/Index Terms

• TRT Terms: Benefit cost analysis; Crash analysis; Crash risk forecasting; Fatalities; High risk locations; Infrastructure; Intersections; Reconstruction; Roundabouts; Signalized intersections
• Subject Areas: Highways; Planning and Forecasting; Safety and Human Factors; I72: Traffic and Transport Planning; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 01087999
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 30 2008 11:53AM