Luminance Measurement and Estimation Methods in Road

Abstract

Road lighting covers the most significant part of city lighting in our country as in the whole world. While a correct road lighting solves the chaos occurring in transportation, it paves the way for smooth inner-city traffic flow. In addition, well road lighting enables the people to have a comfortable and safe trip. It is required to provide safe driving and visual comfort for the drivers in order to be able to decrease the number of accidents at the evening hours. Excessive lighting causes accidents as well as insufficient road lighting, and it also causes the wastage of electrical energy. Correct road lighting, for well visibility of objects on the road and for vision comfort of the drivers, is possible by ensuring an even luminance distribution on road’s surface. In this article, different methods used in the measurement of luminance level of road lighting were searched systematically, and it was contributed to literature in various aspects.

Commercial Lighting Design in Human-Centered Lighting Concept

“…Developed as a solution to this situation, Human Centric Lighting brings the light intensity and color temperature of daylight to indoor spaces. Thus, it supports the correct balancing of people's biological rhythms even in an area completely independent of the outside world [1][2][3][4].…”