Lensed Rail Lights for Pavement Illumination.

摘要

The study was initiated to learn more about rail lights equipped with Fresnel lenses,and to verify some assumptions made when specifying illumination requirements for the interchange of the Riverfront Arterial and South Mall Expressway in Albany. Information was obtained from observations and measurements on mockup installations,as well as a completed portion of the interchange. The data confirmed that light distribution was better than obtained from reflector-type fixtures. In-service performance on the opened portion of the interchange revealed problems with dirt accumulation,piled snow,lens breakage,and electrical failures due to water. (Modified author abstract)