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为明确车-人碰撞事故中行人各部位损伤及其与敏感参数之间的关系,通过查阅文献初步筛选出10个敏感参数并确定其取值,然后借助拉丁超立方试验设计,提出基于随机森林的参数重要性分析方法,并使用该方法分析了各敏感参数的重要性,在此基础上分析了行人各部位损伤及其与敏感参数之间的相关性。结果表明,车速是对行人头部、胸部及腿部损伤影响最显著的参数;车速与行人各部位损伤、行人头部与胸部损伤之间具有较强的相关性,可在此基础上建立相关车速鉴定和损伤验证模型用于交通事故鉴定分析。
In order to clarify the damage of pedestrian and its relationship with sensitive parameters in the vehicle-human collision accident, 10 sensitive parameters were initially screened through literature review and their values were determined. Then based on the Latin hypercube test design, The importance of each parameter was analyzed by using this method. Based on the analysis, the correlation between the damage of each part of pedestrian and its sensitive parameters was analyzed. The results show that the speed is the most significant parameter affecting the head, chest and leg injuries. The correlation between the speed and pedestrian injuries and pedestrian head and chest injuries are strongly correlated, and the correlation can be established on this basis Speed Identification and Damage Verification Model for Traffic Accident Identification.