Guidelines and procedures are developed for specifying the location and spacing of sensors needed and used by algorithms which detect freeway incidents. The sensor placement problem is considered for each of the following geometric features: freeways containing only level, tangential sections of roadway with on and off ramps; freeways containing weaving areas of between 1000 and 3000 feet (305 and 914 M); freeway segments containing a change in the number of lanes; and freeway segments with a change in the alignment. The guidelines and procedures permit the user to determine the optimum spacing of sensor stations given the roadway geometry, the funding available for sensor installation, and the requirements for incident detection algorithm performance. Major emphasis is placed upon assessing the tradeoffs between cost and effectiveness of a variety of candidate sensor configurations.

  • Supplemental Notes:
    • Prepared in cooperation with KLD Associates, Huntington, NY.
  • Corporate Authors:

    Orincon Corporation

    3366 North Torrey Pines Court, Suite 320
    La Jolla, CA  United States  92037

    Federal Highway Administration

    Office of Research and Development, 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Koble, H M
    • Anderson, G M
    • Goldblatt, R B
  • Publication Date: 1979-12

Media Info

  • Pagination: 139 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00314381
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA-RD-78-137, Interim Report
  • Contract Numbers: DOT-FH-11-9367
  • Files: TRIS, USDOT
  • Created Date: Aug 27 2002 12:00AM