Photo enforcement cameras are problematic for several reasons.
A) It has been shown that yellow lights with such cameras are very often set to a yellow duration briefer than generally accepted engineering practices to increase revenue *1
B) They discourage a rare misbehavior, actually running red lights, whilst causing another to become common. That is slamming on the brakes even when it isn’t safe to stop. Exacerbated by A. Better slam on the brakes when it flicks yellow even if you are way too close to reasonably stop whilst going only the speed limit.
People who are caught up by it are almost always those who found themselves a bit too far into the intersection to safely stop. EG those who cross the threshold right as it is changing. There is for reasons of safety a few seconds between one light turning red and another green. At 30 mph (44 feet per second) someone will fully clear a 40 foot intersection in less than a second. That is to say the only people you catch aren’t those who would have collided.
They are those
you fucked with the shorter duration yellow oops
people who hesitated because of 1 and slowed but ultimately decided to proceed thinking they can make it
People with poorer brakes and or dealing with rainy conditions reducing stopping time.
C) Most of the money goes to the contractor who owns the cameras. Essentially you are letting a private company prey on your citizens as long as government gets to keep the scraps.
Photo enforcement cameras are problematic for several reasons.
A) It has been shown that yellow lights with such cameras are very often set to a yellow duration briefer than generally accepted engineering practices to increase revenue *1
B) They discourage a rare misbehavior, actually running red lights, whilst causing another to become common. That is slamming on the brakes even when it isn’t safe to stop. Exacerbated by A. Better slam on the brakes when it flicks yellow even if you are way too close to reasonably stop whilst going only the speed limit.
People who are caught up by it are almost always those who found themselves a bit too far into the intersection to safely stop. EG those who cross the threshold right as it is changing. There is for reasons of safety a few seconds between one light turning red and another green. At 30 mph (44 feet per second) someone will fully clear a 40 foot intersection in less than a second. That is to say the only people you catch aren’t those who would have collided.
They are those
C) Most of the money goes to the contractor who owns the cameras. Essentially you are letting a private company prey on your citizens as long as government gets to keep the scraps.
*1 https://ww2.motorists.org/blog/6-cities-that-were-caught-shortening-yellow-light-times-for-profit/