Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A Road Stripe Reflectometer for Use During Daylight Hours
An instrument has been developed to measure the reflecting properties of road stripes and pavement markers in the field. A beam of white light from a low voltage incandescent lamp is amplitude modulated by a mechanical chopper. This beam is projected onto the road strip and the reflected light is measured by means of a large diameter collector and sensitive optical detector. A prototype reflectometer was used for laboratory measurements of the reflectance of road stripe paint. Tests with this instrument indicate that the measurement of road stripe reflectance in the field during daylight hours is fully feasible.
A Road Stripe Reflectometer for Use During Daylight Hours
An instrument has been developed to measure the reflecting properties of road stripes and pavement markers in the field. A beam of white light from a low voltage incandescent lamp is amplitude modulated by a mechanical chopper. This beam is projected onto the road strip and the reflected light is measured by means of a large diameter collector and sensitive optical detector. A prototype reflectometer was used for laboratory measurements of the reflectance of road stripe paint. Tests with this instrument indicate that the measurement of road stripe reflectance in the field during daylight hours is fully feasible.
A Road Stripe Reflectometer for Use During Daylight Hours
W. E. Webb (Autor:in)
1973
71 pages
Report
Keine Angabe
Englisch
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