The 12 papers in the report deal with the following areas: Effects of misaimed low beams and high beams on visual detection of reflectorized targets at night; Visibility criteria and application techniques for roadway lighting; Effect of luminaire arrangement on object visibility; Color appearance of traffic control devices under different illuminants; Major road accident reduction by illumination; Visibility of targets; Effects of headlamp aim and aiming variability on visual performance in night driving; Minimum photometric properties of retroreflective signing materials; Mobile system for measuring the retroreflectance of traffic signs; Streetlighting research needs of U.S. utilities; Effects of asymmetric distributions on roadway luminance; New CIE and ANSI/IES recommendations for vehicular tunnel lighting.
Visibility Criteria for Signs, Signals, and Roadway Lighting
1989
111 pages
Report
No indication
English
Highway Engineering , Road Transportation , Transportation & Traffic Planning , Visibility , Highway lighting , Traffic signals , Signal lights , Luminaires , Luminosity , Optical properties , Visual perception , Roads , Vehicular traffic control , Traffic engineering , Traffic safety , Traffic control , Sign reflectance , Night visibility
Visibility criteria for signs, signals and roadway lighting
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