Assessment Model of Urban Road Collapse Hazards and Its Application Based on Entropy Weight Method
In recent years,frequent road surface collapse incidents have occurred nationwide,causing significant economic losses and casualties,becoming a focal point in urban public safety concerns.Based on the collected case data of road collapse happened in Shanghai,the main causes and influencing factors of urban road collapse is analyzed systematically in this paper,and the evaluation index set and calculation model of urban road collapse based on entropy weight method is established here.Then,the selected area in Yangpu,Changning and Minhang of Shanghai is applied the model in combination with some typical roads,and validified the accuracy of its index system and evaluation result by using historical case data,evaluation conditions and recent accident in different regions,which can provide a theoretical model and practical guidance for the assessment and fine management of urban road collapse in Shanghai and other cities for their resilience and safety of road infrastructure.