GLASS REFLECTORS FOR SAFER ROADS AT NIGHTTIME
About one third of all road accidents and more than half of all fatal road accidents occur at night, largely because of limited visibility. Two remedies exist; to provide street lighting, which is limited to urban areas because of high cost, and to equip roads with retro-reflective markers. There are two types of retro-reflectors: corner cube reflectors and Cat's Eyes. Both types have been used on guard posts and guard rails for many years. Their use on roads is a more recent development. Raised reflective pavement markers are superior to paint stripes because, unlike paint lines they maintain their reflectivity even in rain; they exercise a warning effect on vehicle drivers, as they are heard and felt when crossed. According to an OECD Report (Paris 1975) their application on a six-lane freeway in the United States reduced the total number of accidents by 20 percent and personal-injury accidents by 61 percent. Glass reflectors are superior to acrylic plastic reflectors, which lose 80 percent of their reflectivity after a comparatively short period.
- Presented at the Fourth IRF African Highway Conference, Nairobi, Kenya, January 20-25, 1980. For individual papers see TRIS Accession Numbers 311921 through 311971.
Washington, DC USA 20024
- Feldhutter, R
- Publication Date: 1980
- Features: Figures; Photos;
- Pagination: 16 p.
- TRT Terms: Costs; Crash rates; Freeways; Highway safety; Night visibility; Raised road markings; Retroreflectors; Street lighting; Traffic crashes; Urban areas
- Old TRIS Terms: Raised traffic markings
- Subject Areas: Finance; Geotechnology; Highways; Materials; Operations and Traffic Management;
- Accession Number: 00311962
- Record Type: Publication
- Report/Paper Numbers: Conf Paper, HS-028 990
- Files: HSL, TRIS
- Created Date: Jun 9 1985 12:00AM