Evaluation of the accessibility of shock absorber evacuation channels based on reliability analysis
The post-earthquake accessibility of urban evacuation roads is directly related to whether the affected people can be safely transferred in the first time and whether the disaster relief work can be carried out smoothly.Taking the Ganshi Bridge Street in Jinan City as the research ob-ject,considering the impact of the collapse of buildings along the epicenter,the seismic reliability and accessibility of the road system were evaluat-ed with the help of spatial syntax,and optimization suggestions were put forward.After analysis,the high density of buildings in the street and the layout of high-rise buildings at road intersections all pose a certain threat to the seismic evacuation function of block roads,and the old city itself has insufficient planning of seismic evacuation network and more"dead ends"for disaster relief.With the development and renewal of the city,most of the central urban areas have been planned for a long time,and the original seismic evacuation network can no longer meet the demand,and in recent years,natural disasters have been frequent,and the overall evaluation and optimization of seismic evacuation channels in the central urban area need to be carried out urgently.
万方数据
维普
