THE APPRAISAL OF HIGHWAY INVESTMENTS UNDER FIXED AND VARIABLE DEMAND

A single mode equilibrium model of a transport system is used to investigate the difference between user benefits arising from highway policies when computed under fixed and variable demand, the latter allowing for traffic generated by a project. The dependence of this difference on: the demand elasticity; the variation of user costs with traffic flow; and the policy itself, is explored both analytically and numerically. The central focus of the investigation is the extent to which the benefit to generated traffic is outweighed by the disbenefit inflicted on existing road users through increased congestion. The implication of the results for road appraisal are assessed.

• Availability:
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• Authors:
  • Williams, HCWL
• Publication Date: 1990-1

Media Info

• Features: References; Tables;
• Pagination: p. 61-81
• Serial:
  • Journal of Transport Economics and Policy
  • Volume: 24
  • Issue Number: 1
  • Publisher: University of Bath
  • ISSN: 0022-5258
  • Serial URL: http://www.jtep.com

Subject/Index Terms

• TRT Terms: Elasticity (Mechanics); Equilibrium (Mechanics); Mathematical models; Traffic congestion; Traffic flow; Transportation policy; Travel demand; User benefits; Variables
• Uncontrolled Terms: Models
• Subject Areas: Administration and Management; Economics; Finance; Highways; Policy; Society;

Filing Info

• Accession Number: 00496837
• Record Type: Publication
• Source Agency: Ministerie van Verkeer en Waterstaat
• Files: TRIS, ATRI
• Created Date: Aug 31 1990 12:00AM