基于负载重分配算法改进的加权路网实证研究  

Empirical study of road network based on improved load redistribution algorithm

作　　者：孙聪辉 姚红光[1] SUN Conghui;YAO Hongguang(School of Air Transportation,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]上海工程技术大学航空运输学院,上海201620

出　　处：《智能计算机与应用》2024年第6期213-218,共6页Intelligent Computer and Applications

摘　　要：稳定运行的城市道路交通网络对于城市正常活动的高效运行以及国民循环经济的快速增长至关重要,城市道路交通网络的交叉口节点遭到破坏,引发拥堵持续蔓延扩散,导致大面积路网产生相继拥堵现象,影响城市区域交通流动性。本文基于改进的负载重分配算法研究负载-容量模型下路网相继拥堵后的负载重分配引导策略,基于上海松江新城部分区域路网进行实证仿真研究。进行实际路网网络拓扑并建立负载-容量模型,利用随机攻击和蓄意攻击在相继拥堵模型上基于新加权节点综合重要度和节点强度中分析拥堵导引策略。研究表明复杂加权路网受到攻击后基于新加权节点综合重要度负载重分配策略提高了路网的鲁棒性,对识别城市运输网络中的重要节点、在拥堵后对于城市道路交通拥堵发生前制定预案、失效发生后道路交通管理控制等方面具有重要意义。A stable urban road transportation network is crucial for the efficient operation of normal urban activities and the rapid growth of the national recycling economy.Damage to the intersection nodes of the urban road transportation network triggers the continuous spread and diffusion of congestion,which leads to the phenomenon of successive congestion on a large area of the road network and affects the mobility of urban regional traffic.This paper studies the load redistribution guidance strategy after successive congestion in the road network under the load-capacity model based on the improved load redistribution algorithm,and carries out an empirical simulation study based on part of the regional road network in Songjiang New City,Shanghai.The actual road network topology is carried out and the load-capacity model is established,and the congestion guidance strategy is analyzed based on the new weighted node comprehensive importance and node strength in the successive congestion model using random attack and intentional attack.The study shows that the load redistribution strategy based on the integrated importance of the newly weighted nodes after the attack on the complex weighted road network improves the robustness of the road network,which is of great significance in identifying the important nodes in the urban transportation network,formulating a preplan before the occurrence of traffic congestion on urban roads after congestion,and controlling the management of road traffic after the occurrence of failures.

关 键 词：相继拥堵 负载-容量模型 复杂加权路网 负载重分配算法 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构] V35[自动化与计算机技术—计算机科学与技术]