LARGE TRUCK SAFETY AND THE GEOMETRIC DESIGN OF TWO-LANE, TWO-WAY ROADS

Geometric design features are of pivotal importance to the operating safety of large trucks on two-lane, two-way roads. This review of sight distance formulae, stopping sight distance requirements for trucks, and superelevation specifications finds the AASHTO Green Book guidelines inadequate. In conclusion, it is pointed out that older two-lane, two-way roads are riddled with substandard, hazardous design and operating features, and the Green Book gives inadequate direction for their substantial improvement. Also pointed out is the lack of an approach to geometric design on older roads that rationally accommodates the actual ranges of legally licensable drivers and vehicles. Together, the facts pointed out in this article lead to the conclusion that on two-lane, two-way roads with significant curvature and grades, there is no vehicle more disfranchised from the protection that should be afforded any highway user than big trucks.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/614107147
• Corporate Authors:

  Institute of Transportation Engineers (ITE)

  Washington, DC  United States 
• Authors:
  • Donaldson, G A
• Publication Date: 1985-9

Media Info

• Features: References;
• Pagination: p. 41-46
• Serial:
  • ITE Journal
  • Volume: 55
  • Issue Number: 9
  • Publisher: Institute of Transportation Engineers (ITE)
  • ISSN: 0162-8178
  • Serial URL: https://www.ite.org/publications/ite-journal/

Subject/Index Terms

• TRT Terms: Geometric design; Guidelines; Highway safety; Sight distance; Stopping sight distance; Superelevation; Trucks; Two lane highways
• Identifier Terms: American Association of State Highway and Transportation Officials
• Subject Areas: Design; Highways; Motor Carriers; Safety and Human Factors; I20: Design and Planning of Transport Infrastructure; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 00495552
• Record Type: Publication
• Source Agency: National Highway Traffic Safety Administration
• Report/Paper Numbers: HS-039 424
• Files: HSL, TRIS, USDOT
• Created Date: Jul 31 1990 12:00AM