ECONOMIC EVALUATION OF SMALL TOWN BYPASSES

The methodology employed in this paper compares the construction costs of a proposed bypass to the sum of the travel time, operating, accident and maintenance cost savings resulting from it. Time, operating, accident and maintenance costs are measured for the existing road network under the assumption that no investment takes place. The same costs are then measured for the proposed road network, incorporating the new bypass route, and the benefits arising from the investment are obtained by subtraction. In the example given, all calculations are made interms of 1977 prices. The forecast and evaluation period adopted is twenty-five years, benefits are forecast for the first year of operation of the improvement project and for the years 1985, 1995 and 2005. The paper outlines the principal steps of the economic evaluation. These are the definition of the existing and proposed road networks, the estimation of present and future traffic volumes, the calculation of the project benefits and costs and, finally, the comparison of these benefits and costs. (TRRL)

  • Corporate Authors:

    National Institute for Phys Planning & Constr Res

    St Martin's House, Waterloo Road
    Dublin 4,   Ireland 
  • Authors:
    • Feeney, B P
  • Publication Date: 1984-2

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 13 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00390329
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Report/Paper Numbers: RT 275 Monograph
  • Files: ITRD, TRIS
  • Created Date: Nov 30 1984 12:00AM