摘要
以杭州市上城区2022年全年核酸检测点记录数据为基础,采用优化型第三代非支配排序遗传算法(NSGA3),将杭州市上城区划分为10786个50 m×50 m的人口点,模拟每个人口点去往周边核酸检测这一聚集性应急行为,并进行50000次迭代.将迭代结果进行核密度分析,分别得出基于单设施点的15 min生活圈优化结果、基于双设施点的15 min生活圈优化结果、基于适老化需求修正的设施点优化结果,以及基于单设施点的5 min生活圈优化结果.结果显示,以单设施点的15 min生活圈优化结果为例,在不改变服务能力的前提下,基于优化NSGA3迭代后的核酸检测点网络,将设施平均可达时间从292.44 s优化到了264.62 s.基于核酸检测这一行为结果形成城市应急设施的模糊选址范围,得出“小集聚-大分散”空间规律;在此基础上将模糊选址范围转化为“社区级多功能应急空间”,为将来发生应急事件,进行临时应急设施选点决策时提供理论建议.
Based on the recorded data of nucleic acid testing points in the Shangcheng district of Hangzhou in 2022,and dividing Shangcheng district into 10786 population points(50 m×50 m),an optimized non-dominated sorting genetic algorithmⅢ(NSGA3)was used to simulate the collective emergency behavior of each population point moving towards nearby nucleic acid testing points.This simulation was carried out with 50000 iterations,and the kernel density analysis was performed on the iteration results.The optimization results of the 15-minute living circle based on a single facility point,the optimization results of the 15-minute living circle based on dual facility points,the optimization results of the facility points based on the needs of the elderly,and the optimization results of the 5-minute living circle based on a single facility point were obtained.Results showed that,taking the optimization results of the 15-minute living circle based on a single facility point as an example,without changing the service capacity,the average accessibility time of the facilities was optimized from 292.44 s to 264.62 s by the iterated nucleic acid testing points network through the optimized NSGA3 algorithm.A fuzzy site selection range for urban emergency facilities based on the results was formed.The spatial pattern of"agglomeration at the micro level and dispersion at the macro level"was identified.These results of fuzzy site selection range could be subsequently transformed into a"community-level multifunctional emergency space",which can provide theoretical advice for site selection decisions for temporary emergency facilities in the event of future emergencies.
作者
朱云辰
程明骏
郑昕文
岑沛立
郗祥硕
黄杉
华晨
黄海
ZHU Yunchen;CHENG Mingjun;ZHENG Xinwen;CEN Peili;XI Xiangshuo;HUANG Shan;HUA Chen;HUANG Hai(College of Civil Engineering and Architecture,Zhejiang University,Hangzhou 310058,China;The Architectural Design and Research Institute of Zhejiang University Co.Ltd,Hangzhou 310028,China;School of Public Affairs,Zhejiang University,Hangzhou 310058,China;The Second Affiliated Hospital,Zhejiang University School of Medicine,Hangzhou 310009,China;School of Mechanical Engineering,Zhejiang University,Hangzhou 310058,China;Center for Balance Architecture,Zhejiang University,Hangzhou 310027,China)
出处
《浙江大学学报（工学版）》
EI
CAS
CSCD
北大核心
2024年第9期1832-1843,共12页
Journal of Zhejiang University：Engineering Science
基金
国家自然科学基金应急管理项目(71841006)
2020年度浙江大学平衡建筑研究中心立项项目(K横20203314)
2021年度浙江大学平衡建筑研究中心立项项目(K横20212791)
住房和城乡建设部科技计划资助项目(2015-R2-061)
浙江省2023年建设科研资助项目(2023K245).
