首页|基于GIS的历史文化街区应急疏散能力可视化评估研究

基于GIS的历史文化街区应急疏散能力可视化评估研究

Visualization assessment study on emergency evacuation capability of historical and cultural blocks based on GIS

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为评估历史文化街区在旅游高峰期的应急疏散能力,探究街区的应急疏散风险区域.研究从点-线-面的角度出发,考虑行人特征因素、街巷路网因素和建筑结构因素,构建应急疏散能力评价模型.采用ANP-EWM综合评估方法确定各因素权重值,应用GIS技术进行因素可视化分级处理.在此基础上,采用空间分析方法,对单因素分级分析赋权重后进行加权叠加处理,得到历史文化街区应急疏散能力的可视化数据.以西安回民街为例进行实证分析,探究街区应急疏散能力风险区域.研究结果表明:所构建模型可以实现对研究区界的应急疏散能力可视化分级评估,反映回民街不同等级疏散风险情况.研究结果可为景区应急疏散与制定安全管理措施提供参考.
In order to assess the emergency evacuation capacity of historical and cultural blocks during the peak tourism peri-ods,and identify the risk areas of emergency evacuation in these blocks,starting from the perspectives of points,lines,and surfaces,an assessment model of emergency evacuation capability was constructed considering the pedestrian feature factors,street and alley road network factors,and building structure factors.The analytic network process(ANP)in conjunction with the exponential weighting method(EWM)was employed to ascertain the weights of each factor,and the GIS technology was utilized to the visual classification processing of factors.On this basis,the spatial analysis method was used to conduct the weighted superposition processing after the hierarchical analysis and weighting of factors,and the visual data of the emergency evacuation capability of historical and cultural blocks was obtained.Using Xi'an Huimin Street as a case study,the empirical analysis was conducted to explore the risk areas of emergency evacuation in these blocks.The results showed that the con-structed model enables a visualized graded assessment of emergency evacuation capability within the research area,reflecting varying levels of evacuation risk on Huimin Street.These results can provide a reference for emergency evacuation and the for-mulation of safety management measures in the scenic spots.

historical and cultural blocksemergency evacuationcomprehensive assessment methodgeographic informa-tion system(GIS)

范帅超、李华

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西安建筑科技大学 资源工程学院,陕西 西安 710055

历史文化街区 应急疏散 综合评估方法 地理信息系统(GIS)

陕西省社科联重大理论与现实问题研究联合项目

2023HZ1473

2024

中国安全生产科学技术
中国安全生产科学研究院

中国安全生产科学技术

CSTPCD北大核心
影响因子:1.119
ISSN:1673-193X
年,卷(期):2024.20(2)
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