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Evaluating road safety audit procedures: some questions and a new method of study

机译：评估道路安全审核程序：一些问题和新的研究方法

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This article discusses the current views on the application of road safety audits (RSAs) as a tool for the improvement of road safety and proposes a new method of study for detailed evaluation of some features that can influence their effectiveness. This is demonstrated in the practical setting of RSAs applied to existing road reviews or inspections. Starting from a review of published sources on RSAs in different countries, a set of questions has been identified and a case study undertaken on the impact of alternative RSA procedures on its overall effectiveness. RSA effectiveness is measured both as agreement with a safety expert assessment and to an accident-based study. The main features analyzed in the case study include the type of observer used for data collection and the type of checklist used as a guide to field work. Based on an exploratory study, the performance of RSA application is evaluated using weighted indices of concordance and disagreement, and the rating of detection or omission for the observations gathered in the accident diagnosis of the safety problems at the intersection studied, supplemented by a statistical analysis of the influence of selected covariates on these scores. The main results of the case study can be summarized as clear support to team work for field observation and also to employing less-experienced personnel for field observation. The study also stresses the need for procedures/criteria for priority setting. These conclusions are useful for the selection of alternative RSA procedures in agencies responsible for promoting or enforcing RSA and in professional teams carrying out RSA tasks. Several features deserving further study are also identified.
机译：本文讨论了当前关于将道路安全审核（RSAs）用作改善道路安全的工具的观点，并提出了一种新的研究方法，用于详细评估可能影响其有效性的某些功能。这在应用于现有道路检查或检查的RSA实用设置中得到了证明。从回顾不同国家关于RSA的公开资料开始，已经确定了一系列问题，并就RSA替代程序对其整体有效性的影响进行了案例研究。 RSA有效性的评估既要与安全专家评估相一致，也要进行基于事故的研究。案例研究中分析的主要特征包括用于数据收集的观察员类型和用作野外工作指南的清单类型。在一项探索性研究的基础上，使用一致性和不一致的加权指数评估RSA应用程序的性能，并在所研究的交叉路口安全问题的事故诊断中收集的观察结果的检出或不检定等级，并辅以统计分析所选协变量对这些分数的影响。案例研究的主要结果可以概括为：为团队合作进行现场观察提供了明确的支持，也为雇用经验不足的人员进行了现场观察提供了明确的支持。该研究还强调了确定优先次序的程序/标准的必要性。这些结论对于在负责推广或执行RSA的机构以及执行RSA任务的专业团队中选择RSA替代程序很有用。还确定了一些值得进一步研究的特征。

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