Institute of Transport Economics, Gaustadalléen 21, 0349 Oslo, Norway.
Accid Anal Prev. 2009 Sep;41(5):914-23. doi: 10.1016/j.aap.2009.05.005. Epub 2009 May 27.
A meta-analysis has been conducted on the effects on crashes of DUI-checkpoints (DUI, driving under the influence). The results indicate that crashes involving alcohol are reduced by 17% at a minimum and that all crashes, independent of alcohol involvement, are reduced by about 10-15%. In a moderator analysis the effects of a number of factors that may affect the effectiveness of DUI-checkpoints were investigated by means of subgroup analyses and meta-regression. Those moderator variables that were found to be most relevant, are the time period studied, country, and study design. DUI-checkpoints were found to be most effective during the first half year. Australian checkpoints were found to be more effective than checkpoints in other countries. Smaller crash reductions were found in studies that have applied a control group than in other studies. Testing all drivers who are stopped at a checkpoint may improve the effectiveness of DUI-checkpoints. The results do not indicate that DUI-checkpoints have greater effects on more severe crashes or that the use of paid publicity improves the effectiveness. Most likely there are further factors that affect the effectiveness of DUI-checkpoints that could not be investigated in the present analysis.
一项关于 DUI 检查站（DUI，酒后驾车）对撞车事故影响的荟萃分析表明，最低限度可减少 17%涉及酒精的撞车事故，并且可减少约 10-15%的所有撞车事故，无论是否涉及酒精。在一个调节分析中，通过亚组分析和荟萃回归研究了一些可能影响 DUI 检查站有效性的因素的影响。发现最相关的调节变量是研究时间段、国家和研究设计。DUI 检查站在前半年最为有效。与其他国家的检查站相比，澳大利亚的检查站更有效。在应用对照组的研究中发现，撞车事故减少幅度较小，而在其他研究中则较大。对在检查站被拦下的所有司机进行测试可能会提高 DUI 检查站的有效性。结果表明，DUI 检查站对更严重的撞车事故没有更大的影响，也没有表明付费宣传的使用可以提高其效果。很可能还有其他因素会影响 DUI 检查站的有效性，而在目前的分析中无法对此进行调查。
