EVALUATION METHODOLOGY FOR SELECTION OF AN INTERCHANGE CONFIGURATION

The selection of pertinent evaluation criteria is fundamental to the evaluation methodology for deciding on an interchange configuration. The criteria chosen should measure differences between alternative interchange designs. If no such criteria exist, then there is no difference between the alternative designs, and the interchange configuration with the lowest initial cost should be selected. The initial cost was used as the cost indicator for each alternative interchange design. The initial cost was selected because it is easily obtained and does not include some of the uncertainties associated with calculation of road-user costs. The next step is the development of an effectiveness profile for each alternative inter-change design. An effectiveness profile is a graphical technique that shows each alternative's effectiveness rating for every evaluation criterion. It is based on the cost-effectiveness approach of economic analysis and is the accumulation of several cost-effectiveness plots into a single graph. The final step is to analyze the initial cost and the effectiveness profile for each alternative interchange configuration. This analysis will provide the decision-maker with the necessary information to select an adequate interchange configuration for the given conditions.

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 1-10
  • Monograph Title: Geometric highway and culvert design
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00095578
  • Record Type: Publication
  • ISBN: 0309023637
  • Files: TRIS, TRB
  • Created Date: Jul 2 1975 12:00AM