Citation

King L. ITE J. 1985; 55(12): 17-21.

Copyright

(Copyright © 1985, Institute of Transportation Engineers)

DOI

unavailable

PMID

unavailable

Abstract

With the standardization of computational methods and procedures and the ever-increasing availability of the microcomputer, it is now possible to eliminate compromises and shortcut procedures previously used in designing and evaluating roadway lighting systems. Thus, it is practical for engineers involved in roadway lighting design and evaluation to base their recommendations on luminance considerations rather than illuminance. The relatively simple microcomputer-based model presented here combines lamp/luminaire candela arrays with pavement directional reflectance factor data to calculate illuminance, luminance, and veiling luminance. It is anticipated that this design and evaluation model will be of use to the practicing engineer in providing a better night driving environment through improved roadway lighting.