【摘要】 交通系统作为城市发展的重要基石，扮演着城市大动脉的关键角色。道路网络作为城市交通系统中重要的组成部分，地震发生后其通行能力往往急剧下降，成为影响应急救援效率的主要瓶颈。研究基于现有道路易损性分析模型，提出了一种单一路段震后通行能力评估方法；在此基础上，基于贝叶斯网络原理，建立了应急救援阶段以伤员医疗救援和救灾物资运输为导向的路网震后通行能力评估方法；最后，构建了一个虚拟路网，开展了路网的震后通行能力评估，验证了文中提出评估方法的适用性，给出了伤员医疗救援和救灾物资运输的最优路径。研究为道路网络的震后评估和应急救援提供了科学依据和理论基础。更多还原

【Abstract】 The transportation system, as a crucial cornerstone of urban development, plays a key role like the main artery of a city. The road network, as one of the most important components of the urban transportation system, often experiences a sharp decline in its traffic capacity after an earthquake, becoming a major bottleneck that affects the efficiency of emergency rescue operations. Based on existing road vulnerability analysis models, this paper proposes an evaluation method for the post-earthquake traffic capacity of a single road segment. On this basis, a post-earthquake road network traffic capacity assessment method for the emergency rescue stage, oriented by casualty medical rescue and disaster relief material transportation, is established by using Bayesian network principles. Finally, a virtual road network is constructed, and a post-earthquake traffic capacity evaluation is conducted to verify the applicability of the proposed assessment method, providing the optimal paths for casualty medical rescue and disaster relief material transportation. This study provides scientific evidence and theoretical basis for the post-earthquake evaluation of road networks and emergency rescue operations.更多还原