Analysis of Road Vulnerability for Population Evacuation Using Complex Network

Population evacuation in an area with high population density is a very serious problem which should be paid more attention. Knowing the road vulnerability for population evacuation and having efficient reconstruction plans of roads, buildings and emergency shelters play a very important role in emergency response. In this paper, a complex network was used to analyze the road vulnerability for population evacuation in an objective way instead of the traditional subjective methods like the expert evaluation approach. Through the data analysis, road-load vulnerability, accessibility and safe distance to emergency shelter of each road and intersection in population evacuation are studied in detail. Furthermore, the improvement plans of each road, intersection and emergency shelter are put forward. The process and the results that were obtained are essential for improving the efficiency of evacuations and reducing the potential risk in population evacuation, which should considerably reduce the possible injury, deaths and other losses in disasters.