I used to drive truck over the road, and I can attest to the fact that those red light cameras can also be made very deliberately unfair. The city of Hannibal, Missouri had these cameras at the intersection of Highway 61 and Red Devil, at the bottom of a steep hill. About 1/5 of a mile up the hill south of the intersection was a pole with a sensor on it set to about 12’6". I observed that any time any vehicle over that height passed that sensor, the light would trip to red. And it was set at a distance that a loaded semi would be all but guaranteed to run that light. Those of us who traveled that corridor with any frequency knew the sensor was there, and would try to want other drivers over the CB, but a lot of drivers had stopped routinely using the CB by then, so the light proved quite lucrative. At least, until it started causing wrecks from the trucks jackknifing in the intersection in the winter. That setup ran for three or four years before the city was dragged into court over it and forced to remove the red light cameras, though it was done in such a way as to question the enforceability of the tickets and without ever directly acknowledging that the cameras were set up to entrap commercial vehicles.
I used to drive truck over the road, and I can attest to the fact that those red light cameras can also be made very deliberately unfair. The city of Hannibal, Missouri had these cameras at the intersection of Highway 61 and Red Devil, at the bottom of a steep hill. About 1/5 of a mile up the hill south of the intersection was a pole with a sensor on it set to about 12’6". I observed that any time any vehicle over that height passed that sensor, the light would trip to red. And it was set at a distance that a loaded semi would be all but guaranteed to run that light. Those of us who traveled that corridor with any frequency knew the sensor was there, and would try to want other drivers over the CB, but a lot of drivers had stopped routinely using the CB by then, so the light proved quite lucrative. At least, until it started causing wrecks from the trucks jackknifing in the intersection in the winter. That setup ran for three or four years before the city was dragged into court over it and forced to remove the red light cameras, though it was done in such a way as to question the enforceability of the tickets and without ever directly acknowledging that the cameras were set up to entrap commercial vehicles.