Study: Red-Light Cameras Reducing Crashes in Texas

By PAUL J. WEBER | August 3, 2011

  • August 3, 2011 at 6:48 pm
    Bob Wilson says:
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    Another invalid study on red light cameras from the TTI and Mr. Walden. They started out with over 15,000 crashes at 275 intersections, but then they threw out over 26% of them that they didn’t like. The study doesn’t even stay consistent on the total number of ‘after’ crashes, offering 2 sets of numbers without any explanation of the differences between the two. They left out statistics from cities that removed red light cameras, even though they fit the specifications that they set for the study. They did not study any control intersections or changes in traffic volumes, so the the results have no frame of reference to compare them to, basically making the study completely useless and its conclusions invalid.

    If you want to see how a real statewide red light camera study is conducted, take a look at the Virginia DOT 2007 study, probably the most well-conducted study on the subject to date.



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