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Point and Annular Sign Retroreflectometers for Measuring Retroreflective Signs Wednesday, May 11, 2016 The following test methods apply for measurement of the retroreflective properties of sign materials such as traffic signs and symbols (vertical surfaces) using a portable retroreflectometer...


Road markings: Choose the Right Type of Retroreflectometer Thursday, July 10, 2014 It's well known that the visibility of road markings is important for the traffic flow and road safety. The reflection properties giving the visibility of the road marking are measured using...