基于复杂网络模型的城市防灾公园布局系统优化

Layout system optimization of the urban disaster prevention parks based on the complex network model

根据防灾公园功能和规模将其划分为临时防灾公园、固定防灾公园和中心防灾公园三个等级,为加强各场地之间的联系,形成完整系统,利用复杂网络模型对各等级防灾公园进行合理的场地选择,实现合理的防灾避难场所布局,提高各场地之间的关联性和网络性。在防灾公园复杂网络分析时,根据同一等级场地之间的关联性和不同等级场地之间的网络性进行复杂网络模型构建,利用gephi软件对各场地的节点网络度和聚类系数进行计算,根据各网络节点度和聚类系数值进行节点对比,选择出网络节点度和聚类系数较高的场地,确保防灾公园自组织系统的形成,实现防灾公园布局优化。

According to the function and scale of disaster prevention park, this paper divides it into three levels: temporary disaster prevention park, fixed disaster prevention park and central disaster prevention park. The disaster prevention park should make reasonable site selection, realize the reasonable layout of disaster prevention and refuge places, and improve the correlation and network between the sites. In the complex network analysis of disaster prevention parks, a complex network model is constructed according to the correlation between sites of the same level and the network between sites of different levels, and the gephi software is used to calculate the node network degree and clustering coefficient of each site. According to the node degree and clustering coefficient value of each network, the nodes are compared, and the sites with higher network node degree and clustering coefficient are selected to ensure the formation of the self-organizing system of the disaster prevention park and realize the optimization of the layout of the disaster prevention park.