AN EXPERIMENTAL APPROACH FOR DETERMINING THE EFFECT OF ROAD SURFACE DEPRECIATION ON ROAD LIGHTING DESIGN

摘要

Road Surface has an essential role in determining the lighting effect on a Road. In this work, few laboratory developed road surface samples made of bituminous and concrete were used for the photometric measurements. The reflection profile of those sample road surfaces were measured initially as Reflection Parameter (R_P) under different Light Sources. Those road surface samples were installed in different real roads of the main campus of Jadavpur University, based upon its different vehicular and pedestrian movement density. The Reflection Parameter (R_P) of those road surface samples were again measured after one year. Finally, it can be inferred that, the depreciation of road Surface materials due to pedestrian and vehicular movement has a significant effect on road lighting. Hence, the selection of the light sources of different spectrums should be considered upon the materials of the Road and its depreciation.