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Caution: A comment on Alena Erke's red light for red-light cameras? A meta-analysis of the effects of red-light cameras on crashes

机译：警告：对Alena Erke用于红灯相机的红灯有何评论？对红光相机对碰撞的影响的荟萃分析

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摘要

In Red Light for Red-Light Cameras?, Alena Erke concludes that "... on the whole, redlight cameras do not seem to be a successful safety measure." Although Erke's survey of the literature appears to have been comprehensive, her review of the studies was not critical. She appears to have accepted the authors' descriptions of their analyses rather than providing readers with her own considered opinion of how valid those analyses were and what their true implications might be. For the meta-analysis leading to her final conclusion, Erke combines data from two questionable studies with three other "well-controlled" studies. Non-peer-reviewed studies received substantial statistical weight in the meta-analysis. These problems likely produce misleading results. If the highway safety field is to succeed in identifying for policymakers those strategies that are most likely to reduce the human tragedy of motor vehicle crashes, we need first to focus on conducting valid research and analysis. Adding precision to the estimated benefits of those strategies through meta-analysis is important, but secondary, and cannot replace the function of a systematic and critical review.
机译：Alena Erke在《用于红灯相机的红灯？》中总结道：“ ...总体而言，红灯相机似乎并不是一项成功的安全措施。”尽管Erke对文献的调查似乎很全面，但她对研究的评论并不严格。她似乎已经接受了作者对他们的分析的描述，而不是向读者提供她自己对这些分析的有效性及其真正含义可能的看法。对于最终得出结论的荟萃分析，Erke将来自两个可疑研究的数据与其他三个“控制良好”的研究相结合。未经同行评议的研究在荟萃分析中获得了可观的统计权重。这些问题可能会产生误导性的结果。如果高速公路安全领域要成功地为决策者确定那些最有可能减少人身事故的策略，那么我们首先需要集中精力进行有效的研究和分析。通过荟萃分析为这些策略的估计收益增加精确度是重要的，但是这是次要的，并且不能取代系统且严格的审查的功能。

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