This note describes some further enhancements made to the global strategic model described in tn 149 (see TRIS 451029) and tn 150 (see TRIS 451030). The changes involved: 1) including a more realistic estimate of accident costs; 2) revisions to the speed-flow calculations; 3) minor adjustments to the value of time figures; 4) adopting dtp figures for BR fare and passenger miles; 5) corrections to the method of calculating boarding times and bus speeds; 6) adjustments to the base wait time to allow for parallelism; 7) revising the lt rail-car cross-elasticity; 8) updating the data in line with the 1984/5 budget; 9) distinguishing long and short run costs. These changes and those from tn 150 have now also been incorporated in LT's version of METS (the dtp's model for evaluating transport subsidy). When these changes are incorporated, the marginal net social benefit/pounds sterling is found to be 0.29 at 1984 prices (ie for each extra pounds sterling subsidy, the benefit to society is pounds sterling 1.29). (Author/TRRL)

  • Corporate Authors:

    London Transport Executive

    Group Planning Department, 55 Broadway
    London SW1H 0BD,   England 
  • Authors:
    • Frerk, M Y
  • Publication Date: 1984-3

Media Info

  • Features: References; Tables;
  • Pagination: 13 p.
  • Serial:
    • Issue Number: 158

Subject/Index Terms

Filing Info

  • Accession Number: 00451031
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD, TRIS
  • Created Date: Aug 27 2004 9:05PM