The summary outlines the research performed toward accomplishing five specific goals as follows: (1) identify a method of quantifying the level of visibility provided by roadway lighting, (2) determine the precision of this method as a measure of driver visual performance, (3) develop a method for specifying driver visibility needs, (4) develop a method for predicting the distribution of visibility along a roadway, and (5) identify warranting conditions affecting the level of visibility required for a variety of situational factors common to urban roadways.

  • Corporate Authors:

    Franklin Institute Research Laboratories

    Transportation Sciences Lab, Benjamin Franklin Parkway
    Philadelphia, PA  United States  19103

    Federal Highway Administration

    Environmental Design and Control Division, 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Gallagher, V
    • Koth, B
    • Freedman, M
  • Publication Date: 1975-11

Media Info

  • Pagination: 17 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00142910
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FHWA-RD-76- 18 Final Rpt., FIRL-C3660
  • Contract Numbers: DOT-FH-11-8037
  • Files: NTIS, TRIS, USDOT
  • Created Date: Aug 4 1977 12:00AM