Cameras sitting on side of the road and attached to a van hidden in the bushes or behind trash containers or large trucks. You may not see the cameras because they are on a small tripod like a photographer would use and they move them 4-5 times a day to different locations. But they always position them a couple of hundred yards away so if you are looking for them and think they are not out they will still get you. They issue 400-500 tickets a day since they got the cameras. They probably only issued 2-3 tickets a day before.