>"The judge frames the red light camera scheme as a revenue generating scheme, not a public safety measure."
In my own experience, when they took down the red light cameras in my area now people are not afraid to run red lights ~2 to ~3 seconds after it's red. See this kind of thing on a regular basis. Every now and then there's a serious accident.
The objective evidence indicates that accidents tend to go up after red light cameras go up, generally because the operators lower the yellow light time to increase fees.
The objective evidence shows an increase in rear-end crashes but a reduction in injury and fatal crashes, offering a net overall benefit.
Council et al., 2005 -- https://www.fhwa.dot.gov/publications/research/safety/05048/...
There's a regression to the mean issue at work.
Sometimes an intersection simply has bad luck, draws more accidents than anything about it would cause. Put a camera there, you'll see an "improvement".
One might argue the intersection itself is the problem and should be redesigned, as well as adjoining roadways feeding into the offending intersection.
This states that there are many variables they were not able to control for, such as the yellow light timing, as I previously mentioned. Warning signs were another major factor. There doesn't appear to be enough investigation into the protected left issue.
This is pretty damning, in my opinion. AKA we did some cheap analysis on a small dataset, without confidence or effect size, and just agree with the people running the programs.
"The intent of the multivariate regression analysis was to confirm the direction of the effect, not to establish effects with statistical significance or to assess the size of the effect. To undertake analyses for these purer purposes would have required a substantially larger database, much more precision in the estimate of economic effect at each site, and more accurate specification and measurement of the independent variables. For the purposes of this current investigation, it suffices that both the univariate and multivariate analyses are reasonably in accord with the perceptions that are commonly held by those involved in red-light-camera programs."
> generally because the operators lower the yellow light time to increase fees
I'm skeptical of this claim because the red light camera operators are usually contracted by municipalities. They don't have any direct control over the light cycles.
(Yes, obviously they can be in cahoots with the municipality, but I would be surprised if that was common and not the exception)
Do you have any evidence of this?
Neither of you share any references for the objective facts you claim to be stating. At least link an article or a study.
can this not be regulated? yellow light timing must not have changed for the last 12 months before adding cameras
Better to set it using a standard such as 1 second per 10mph of speed limit.
Maybe people should brake on yellow lights.