We had them temporarily awhile back. But then a controversy exploded and it was discovered that the city had shortened the amount of time from yellow to red by (approx. 3.5 seconds). There was also an investigation about the whole right on red thing, where people were getting tickets for turning right after a complete stop at a red light (which is legal here), but could not prove they made a complete stop since they were fighting an image, not a moving video. An investigator from Knoxville had a hidden/dash cam of sorts, stopped at one of those red lights for a good few seconds, then proceeded to make a right, and even he was issued a ticket. When this hit the ceiling fan, they quickly removed light cameras. (Most) at least.