LIMITED SIGHT DISTANCE EFFECT ON SPEED

Sight distance is a basic element of geometric design having a direct bearing on the quality and cost of the designed road. An evaluation is made of speed characteristics as influenced by sight distance at six test sites, each a two-lane rural road. Measures were developed to express the average of driver responses along sections with limited sight distances, and exponential models were constructed to link the measured vertical sight distance to the appropriate response data. Based on the proposed models, an attempt is made to determine the desired sight distance for a design of vertical curves on two-lane roads.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8674831
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Polus, A
  • Borovsky, S
  • Livneh, Moshe
• Publication Date: 1979-9

Media Info

• Features: References;
• Pagination: p. 549-560
• Serial:
  • Journal of Transportation Engineering
  • Volume: 105
  • Issue Number: 5
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-947X
  • Serial URL: https://ascelibrary.org/journal/jtepbs

Subject/Index Terms

• TRT Terms: Automobile drivers; Drivers; Exponential functions; Geometric design; Highway curves; Mathematical models; Reaction time; Roads; Rural areas; Rural highways; Sight distance; Speed; Traffic surveys; Two lane highways; Visibility
• Uncontrolled Terms: Driver reaction; Rural conditions
• Subject Areas: Design; Highways;

Filing Info

• Accession Number: 00303439
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Jan 30 1980 12:00AM