Here is one I think just for speeders. Turn onto W. Lk sam Pkwy form 900 and the speed limit is 35 until you pass the State park then it promptly goes to 30 for about 1/2 mile then pack to 35 at the top of the hill. Usually Motorcycle cop sits at the top of the hill with Lidar getting people that were going 40 in the 35 that has just turned to 30 so now your 10 over and all theirs for the taking.