Abstract: To swiftly explore the impact of built environment elements on the occurrence of electric bicycle fire accidents, a “fire factors-built environment elements” dual-layer network assessment model that integrated DEMATEL and QFD was developed. The intra-layer self-correlation and inter-layer complex mapping analysis on fire factors and built environment elements related to electric bicycle fire accidents were carried out. The key factors within the built environment and fire factors were determined from quantitative analysis results and the importance of each factor in fire accidents was explored. And targeted prevention measures and management strategies for electric bicycle fire prevention and control were accordingly proposed. The research results demonstrate that by improving and optimizing key elements of the built environment, it is possible to effectively reduce the incidence and potential risks of electric bicycle fire accidents, providing methodological references for the prevention and control of such fires.

Key words: traffic and transportation engineering; electric bicycle fire; DEMATEL-QFD; built environment; dual-layer network; assessment model

摘要： 为快速探究建成环境要素对电动自行车火灾事故的影响程度，构建了一个融合DEMATEL和QFD的“火灾因素-建成环境要素”双层网络评估模型，对电动自行车火灾事故相关的火灾因素、建成环境要素分别进行层内自相关、层间复杂映射关系分析，从定量分析结果中判定建成环境要素和火灾因素中的关键因素，探究各因素在火灾事故中的重要度，并据此提出电动自行车火灾防控的针对性预防措施和管理策略。研究结果表明，通过改善和优化建成环境的关键要素，可有效降低电动自行车火灾事故的发生率和潜在风险，也为电动自行车火灾防控提供方法参考。

关键词: 交通运输工程；电动自行车火灾；DEMATEL-QFD；建成环境；双层网络；评估模型