Today I was coming back from Al Ain to Dubai, I noticed radar flashing after I crossed it and was about 100 meters ahead. I don't remember any other car in any of the parallel lanes to me. But my speed was only 130 Km/hr whereas the speed limit is 120 Km/hr. Does the radar flashes a car from the back or front? Also does the flash appears on both sides of the highway or only on the side of speeding car? I was driving in emirate of Abu Dhabi if that helps.