Samenvatting
A procedure and description of equipment for measuring glare from a driver's own vehicle are presented. The procedures developed are based on disability glare theory as applied to foveal vision. Methods of combining data from these measurements are presented along with scaling laws selected to provide a value for glare as it would be under natural daylight conditions. A standard for allowable glare levels from the vehicle is developed which is independent of the measurement procedure. Test results from a passenger car are presented and compared with this standard.