Aimed at fire cause identification of a major road traffic accident, through detailed on-site inspection and inquiry by fire investigators, some interference factors were excluded with dynamic and static simulation experiment.Combined with vehicle trace identification, driving route identification and on-site combustion trace, the fire cause was analyzed and identified, giving evidence support for identifying responsibility for the accident and providing disposal opinions and giving reference for cooperation of fire investigation.%针对一起重大道路交通事故的起火原因认定,火灾调查人员经过认真细致的现场勘验和调查访问,借助动、静态车况模拟实验,排除了一些干扰因素,结合交通事故车辆痕迹鉴定、交通事故行驶轨迹鉴定和现场燃烧痕迹,综合分析认定了事故的起火原因,为厘清事故责任、提出处理意见提供了证据支持,为涉火的灾害事故调查协作提供了借鉴.
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