Abstract: In order to evaluate the safety level of parking lots for dangerous goods transport vehicles and reduce the risk of parking of dangerous goods vehicles, a safety evaluation method of parking lots for dangerous goods transport vehicles based on improved ALARP risk matrix was proposed. Firstly, based on the statistical data of accident cases, a safety risk rating index system for dedicated parking lots for dangerous goods transportation vehicles was constructed through causal analysis, fault tree construction, indicator preliminary selection, and reliability and validity testing. Secondly, combined with Bayesian network, analytic hierarchy method, fuzzy comprehensive evaluation method and improved ALARP risk matrix method, the safety risk evaluation model of dedicated parking lots for dangerous goods transportation vehicles was proposed. Thirdly, on the basis of considering the possibility of known risks and the quantification results of risk losses, the quantitative value and evaluation level of the total risk evaluation of dedicated parking lots were obtained based on the improved LARP risk matrix. Finally, the validation analysis was conducted by taking a dedicated parking lot for dangerous goods transportation vehicles in Chongqing as an example. The validation results show that the evaluation results obtained by the proposed method are highly consistent with the actual situation.

Key words: traffic and transportation engineering; dangerous cargo transportation; dedicated parking lot; safety evaluation; improved ALARP; risk matrix

摘要： 为评估危货运输车辆专用停车场安全水平，降低危货车辆停放环节风险，提出一种基于改进ALARP风险矩阵的危货运输车辆停车场安全性评价方法。首先，基于事故案例统计数据、在开展致因分析、故障树构建、指标初选、信效度检验的基础上，构建危货运输车辆专用停车场安全风险评级指标体系；其次，结合贝叶斯网络、层次分析法、模糊综合评价法和改进ALARP的风险矩阵法，提出危货运输车辆专用停车场安全风险评价模型；再次，在考虑已知风险可能性、风险损失量化结果的基础上，基于改进ALARP风险矩阵得到专用停车场风险总评价量化值及评价等级；最后，以重庆市某危险货物运输车辆专用停车场为例开展验证分析，验证结果表明，研究所得到的评价结果与实际情况具有较高的一致性。

关键词: 交通运输工程；危货运输；专用停车场；安全评价；改进ALARP；风险矩阵