The study of factors affecting the brightness of the road lights of High-pressure sodium (HPS) in actual use conditions

Abstract

The objective of this study to study the factors that affect the lighting of high-pressure sodium lamp (HPS) in actual use conditions in the area of ​​responsibility of the Department of Highways The study of important parameters is the brightness of the road lights (Lux), the distance between the light pole, various time periods At night, the temperature and humidity relative to the air In the area of ​​foggy weather and normal weather Is an urban area And is an area outside the city the results of the study showed that both types of areas, weather conditions The period with the most brightness of the street lighting is between 18.00 - 19.00 hrs. And the time with the least road light brightness is between 01.00 - 02.00 hrs. The factors that affect the brightness of the road light of HPS lamps with statistical methods found that the distance between the pole and the relative humidity in the air. Both of these variables have an influence on the brightness of the road lighting, resulting in reduced efficiency. And the analysis results to create an equation to design the brightness of street lights Get the appropriate equation, Lux = 37.56 - 0.189distance between columns - 0.373Temperature - 0.193relative humidity.