Tennessee Town Releases Red Light Camera Stats
SonicSpike links to what he calls "a transparent look at some statistics released by a small town's red-light camera program," writing
"Specifically, in the last fiscal quarter, 7,213 incidents were recorded, 2,673 incidents were rejected by the reviewing officer, and 662 incidents were not processed due to technical issues or lack of information. All in all 3,878 citations were issued between April 1 — June 30 in a town of 17,000 residents. Interestingly enough there are two nearby cities claiming that individuals 'have no presumption of innocence' when accused by the red light cameras." Fines for no-harm-no-foul rolling stops bug me, and remind me of Gary Lauder's suggestion to merge stop signs and yield signs.
The stats for some of my cities intersections clearly show a decrease in the T-Bones and an increase in rear-endings. Stats are not public.
If you believe T-Bones are the more fatal of the two, then the trade-off is likely appropriate. Note, light timing did not change and there are 100+ intersections with camera boxes but only a handful actually have a camera installed (randomly rotated).
Rod Taylor
The problem with just increasing the length of yellow is that people will eventually become accustomed to longer yellows, and still run the red.
A better idea is to keep the yellow the same duration, and install a countdown timer: 20 seconds before the light turns yellow show a countdown to the yellow light.
They've been installed in my city at a few intersections - they were originally intended for pedestrian signals, but they work *really* well for drivers - it tells you exactly how much time you have to make the light, and you can start slowing down earlier.