CONTACT US: Contact info
|
Citation |
Zwahlen H. Transp. Res. Rec. 1985; 1027: 63-71. |
|
Copyright |
(Copyright © 1985, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing) |
|
DOI |
unavailable |
PMID |
unavailable |
|
Abstract |
This paper contains data on the detection distances of reflectorized white license plates. Detection distances were obtained for a car heading angle and a driver's line of sight in 5 different treatments with 12 drivers. The order of presentation of the five treatments for a given heading angle was basically random and approximately balanced. Each driver sat in a stationary car on a 2000-ft long runway and detected an approaching target configuration under low beam conditions against a background containing a number of luminaires and other light sources. There were three parallel approach paths on the runway; and, for each treatment, three approaches were made on each path toward a driver. The results of this study indicated that the average detection distance increase from treatment 1 to treatment 5 was 39 percent for the -3-degree heading angle and 85 percent for the 10-degree heading angle. Based on the detection distances obtained in this study and calculations that involve stopping sight distances and/or decision sight distances, the potential for significant safety benefits when using reflectorized license plates in addition to the red rear cube corner vehicle reflectors can be demonstrated. These potential safety benefits are especially significant for an 84-CIL license plate combined with red rear reflectors. Language: en |
|
Keywords |
AUTOMOBILES; TRANSPORTATION - Accident Prevention; ILLUMINATING ENGINEERING; SYSTEMS SCIENCE AND CYBERNETICS - Identification; VEHICLES - Visibility |