中文摘要：

首先探讨了影响路网脆弱性的诸多相关因素,分析了路网脆弱性的主要特征,然后进一步分析了各个因素之间的联系,构建了影响路网脆弱性的解释结构模型。根据解释结构模型分级模型的结果,分析了导致路网脆弱性最直接和最根本的因素,并提出降低路网脆弱性的建议。

英文摘要：

The paper discusses many factors which impact road network＇s vulnerability and analyzes main characteristics of the road network＇s vulnerability.Then it analyzes the links between various influencing factors and builds the interpretative structural model for influencing factors of road network＇s vulnerability.Based on the results of classified model of interpretative structural model,the paper analyzes the direct and most fundamental factor leading to road network＇s vulnerability.