The camera looking sensor is just one way the traffic lights switch from red to green. Some sensors are placed in the ground or the lights are on a fixed pattern. While these may look like a red light camera, the traffic light won’t actually change to green if you stop too early behind the white line or stop too far into the intersection.
“To ensure that they’re stopping at that thick white stop bar. It’s there for a reason and that’s so the traffic signal can detect that it’s there,” said Erin Buchanan, Louisiana DOTD.