Abstract
The problems involved in measuring road luminance are discussed and a new measuring system described which is based on a line-scan Charge Coupled Device (CCD) configuration. It is designed for the assessment of average road surface luminance and degree of non-uniformity of road lighting. Additionally, when the average reflection of the road surface is known, the average illuminance on the road surface can be assessed. The system can be installed in a normal car thus making it fast, simple and cheap. The use of the machine and calculations involved are outlined and examples described of its use on a number of roads in Holland.