关键词: 地震易发区, 避震疏散, 大学校园, 避震需求, 最优疏散路径, 位置分配模型

Abstract:  In colleges and universities with large population and density, scientific planning of earthquake evacuation paths in earthquake-prone areas is of great significance to the life and property safety of teachers and students. Based on the extraction of spatial distribution information and relevant survey  of Chaoyang Campus, Jilin University,    this study realizes the scientific planning of the evacuation paths of  daytime and nighttime simulated scenarios in the study area using  location allocation (LA) model  and  Dijkstra optimal path algorithm, combined with service domain analysis and  optimal path analysis. The results show that playgrounds, outdoor basketball courts, open meadows, and some large parking lots can be used as backup safety zones in the earthquake evacuation plan of universities. LA model and Dijkstra algorithm can meet the requirements of earthquake evacuation planning when evacuation directions do not conflict, and the capacity of the safety zone is large. In view of  the unbalanced space distribution of earthquake evacuation safety places in campus, some suggestions are put forward to improve the earthquake escape system in colleges and universities, such as balanced distribution of open space, increasing the facilities of earthquake evacuation, and strengthening the skills of earthquake evacuation.

Key words:  , earthquake-prone area, earthquake evacuation, university campuses, earthquake evacuation demand, optimal evacuation path, location-allocation model