Patent ID: 6407674
Filing Date: 2002-06-18
Classification: G01M

Abstract:
A reflectivity measuring apparatus for testing the integrity of reflective road or pavement markings, the apparatus including a light source, a light sensor and a processing means, the apparatus being mountable on a vehicle such that, in use, the light source illuminates a reflective surface on a reflective road marking, a plurality of light sensors are provided to cover a wide field of view, each said light sensor detecting any reflected light from a different area of road and providing a data signal to the processing means representing the reflectivity of each said area of road, and wherein the light sensors detect any reflected light and the data signal is received by the processing means, the processing means processes the data to provide information on the reflectivity of a said reflective surface on the road marking, and further including a visual display means associated with and controllable by the processing means to provide an indication of the location of the road markings relative to the vehicle to the vehicle operator to enable the vehicle operator to maintain the moving vehicle in an appropriate position and normal traveling speed during use of the apparatus.