CHARACTERISTICS OF TRUCKS OPERATING ON GRADES

The many changes in truck engine displacement and power have indicated a need to reassess current climbing-lane design practices. This study presents new data characterizing trucks (and combinations) on grades. Field data collected at several locations in central and east Texas were analyzed and speed versus distance curves were developed for a range of grade profiles. From an evaluation of the speed versus distance curves for the designated critical-truck class, composite critical-length-of-grade charts were derived for an 88-km/h (55-mph) approach speed and a range of speed-reduction values. /Author/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1977/631/631-004.pdf
• Record URL:
  https://scholar.google.com/scholar_lookup?title=CHARACTERISTICS+OF+TRUCKS+OPERATING+ON+GRADES&author=C.+Walton&author=C.+Lee&publication_year=1977
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309026563
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Geometric Design. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Walton, C Michael
  • Lee, Clyde E
• Publication Date: 1977

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 23-30
• Monograph Title: Geometrics, water treatment, utility practices, safety appurtenances, and outdoor advertisement
• Serial:
  • Transportation Research Record
  • Issue Number: 631
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Climbing lanes; Curves (Geometry); Dislocation (Geology); Distance; Engines; Highway design; Mathematical analysis; Speed; Trucks; Vehicle performance
• Old TRIS Terms: Truck performance
• Subject Areas: Design; Highways; Motor Carriers; Safety and Human Factors; Vehicles and Equipment;

Filing Info

• Accession Number: 00172412
• Record Type: Publication
• ISBN: 0309026563
• Files: TRIS, TRB
• Created Date: Apr 12 1978 12:00AM