Studies show that the more a vehicle deviates from average road speed, the greater its chances of being involved in an accident. To avoid speed differences on freeways, a traffic engineer always tries to realize gentle slopes on which trucks can maintain their speed. If that is not possible, extra lanes are advisable in most cases. In order to provide useful information for the design and evaluation of speed behavior of heavy vehicles on vertical alignments, The Dutch Ministry of Transport has developed a simple computer program. This program calculates velocities that a vehicle is able to reach at any vertical alignment. With Dutch road designs, this program is particularly useful in evaluating the deceleration of trucks on gradients adjacent to highway tunnels underneath major waterways and in determining the speed of truck acceleration on freeway entries. Based on results of this program, a typical truck for freeway design is determined.

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  • Corporate Authors:

    PTRC Education and Research Services Limited

    Glenthorne House, Hammersmith Grove
    London W6OL9,   England 
  • Authors:
    • Verweij, C A
  • Conference:
  • Publication Date: 2000


  • English

Media Info

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Filing Info

  • Accession Number: 00796101
  • Record Type: Publication
  • Report/Paper Numbers: VTI konferens 13A, Part 1
  • Files: TRIS, ATRI
  • Created Date: Jul 29 2000 12:00AM