EXPERT RAP FOR ROADBUILDER'S KNUCKLES--ASSESSMENT OF METHODS OF TRAFFIC FORECASTING AND EVALUATING TRUNK ROAD SCHEMES

The report of the Leitch committee (report of the advisory committee on truck road assessment, HMSO) criticises the computer models, traffic forecasting techniques and the use of cost benefit analysis which form the basis for road building decisions. It is recommended that car ownership should be forecast by the new Regional Highway Traffic Model (RHTM) instead of the present saturation level method. Car use is considered to be much more relevant. The RHTM model is also attacked because it would have been of most use in determining the national strategic road network, which has already been done. Decisions now are more of a local nature. The model is also insensitive to policy changes. The committee proposes a new method of assessment of proposed routes; financial values would be given for various groups. Amenities would be ranked for competing schemes, and numbers given of those properties demolished, subjected to noise changes or visual intrusion. The report also attacks government secrecy and claims that the present methods do not give a satisfactory basis for comparisons to be made with other forms of transport. /TRRL/

  • Availability:
  • Corporate Authors:

    IPC Magazine Limited

    King's Reach Tower, Stamford Street
    London SE1 9LS,   England 
  • Authors:
    • Hanlon, J
  • Publication Date: 1978-1-12

Media Info

  • Features: Photos;
  • Pagination: p. 75-76
  • Serial:
    • NEW SCIENTIST
    • Volume: 77
    • Issue Number: 1085
    • Publisher: REED BUSINESS INFORMATION LTD
    • ISSN: 0262-4079

Subject/Index Terms

Filing Info

  • Accession Number: 00174089
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Jul 19 1978 12:00AM