公众对城市地下空间的风险感知评估与比较分析

Assessment and comparative analysis on risk perception of public to urban underground space

为明晰公众对城市地下空间的风险感知,服务韧性城市战略,采用半结构化访谈、心理认知测量、统计分析、地理空间评估等方法,形成城市地下空间利用类型和风险清单,绘制风险感知地图,并对风险感知水平进行综合评估和比较分析。研究结果表明:我国城市地下空间利用类型可整理为6类14种,包含技术、环境、人因三维15种风险,其中地震、洪水、火灾风险的严重程度高,辐射、地下管网故障和基础沉降风险的未知程度高;公众对城市地下空间风险感知在人口特征上存在显著差异,在地理空间上存在聚集效应,与经济发展水平表现出相反的空间分布特征。研究结果从社会学视角为城市风险管理提供理论支撑,可为城市地下空间规划提供决策参考。

To clarify the risk perception of public to the urban underground space and serve the resilient cities strategy,the methods of semi-structured interview,psychological cognitive measurement,statistical analysis,and geospatial assessment were used to form the utilization types and risk list of urban underground space,A risk perception map was drawn,and the comprehensive assessment and comparative analysis of risk perception level were conducted,The results show that the utilization types of urban underground space in China can be organized into six categories and 14 types,including 15 risks in three dimensions of technology,environment and human-causing,among which,the severity of earthquake,fire and flood risk are high,and the unknown degree of radiation,underground pipe network failures and foundation settlement risk are high,The risk perception of public to the urban underground space has significant difference in the population characteristics,and there is an aggregation effect in the geographical space,which presents the opposite spatial distribution characteristics with the level of economic development,The research results provide theoretical support for urban risk management from a sociological perspective,and can provide decision-making reference for urban underground space planning.