This study assessed the estimates of heavy vehicle performance on grade in existing Ministry of Transportation (MTO) and other spedd-distance curves, developed metric speed distance curves, and reviewed MTO warrants for climbing lanes based on realistic speed-distance performance and on cost-effectiveness. Weight/power information was compiled for a representative set of heavy vehicles aand two simulation models were developed to obtain speed-distance curves. Model 1 simulates vehicle motion in detail. Model 2 is less detailed and is based on empirical functions recommended by the American Society of Automotive Engineers. Climbing lane warrants were reviewed and recommendations made, based on speed loss on grade, a drop on the level of service and cost-effectiveness. The use of speed-distance curves and warrants is illustrated.

  • Corporate Authors:

    Ontario Ministry of Transportation

    Transportation Technology and Energy Branch, 1201 Wilson Avenue
    Downsview, Ontario  Canada  M3M 1J8
  • Authors:
    • Khan, A M
    • WONG, J Y
    • Rastogl, M
  • Publication Date: 1990

Media Info

  • Pagination: 90 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00618396
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Files: TRIS
  • Created Date: Jan 31 1992 12:00AM