The invention relates to the technical field of traffic model research, in particular to an expressway reconstruction and extension traffic diversion model construction method based on a multi-vehicle-type system, and the method comprises the steps: selecting a road network influence range of a reconstruction and extension expressway region, and obtaining the traffic flow data of each road in a target region according to OD investigation; according to the traffic information and the traffic capacity upper limit of each road of the reconstruction and extension area road network, determining a diversion road section capable of bearing extra traffic volume, and constructing a diversion road network topological structure; a plurality of influence factors and constraint conditions are comprehensively considered, and an optimal highway reconstruction and extension traffic diversion model based on a multi-vehicle-type system is constructed; and solving the model according to a Frank Wolfe algorithm thought to obtain a shunt path and shunt quantity of each OD pair. The total travel time of the traffic flow of the regional road network is optimized, the proportion of the traffic flow of the large vehicles in each road section is minimized, adverse effects caused by imbalance of transition shunting and large vehicle shunting are avoided, the smoothness of the construction road is guaranteed, and the traffic safety level of the regional road network is improved.

    本发明涉及交通模型研究技术领域,尤其涉及基于多车型系统的高速公路改扩建交通分流模型构建方法,选定改扩建高速公路区域路网影响范围,根据OD调查获取目标区域内各道路的交通流量数据;根据改扩建区域路网各道路交通信息及通行能力上限,确定可承担额外交通量的分流路段,构建分流路网拓扑结构;综合考虑多项影响因子和约束条件,构建基于多车型系统最优的高速公路改扩建交通分流模型;根据Frank Wolfe算法思路对模型求解,获得各OD对的分流路径和分流量。优化区域路网交通流总行程时间,最小化各路段大型车辆交通流占比,避免过渡分流和大型车辆分流不均衡带来的不利影响,保障施工道路的畅通,提高区域路网的交通安全水平。


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    Title :

    Expressway reconstruction and extension traffic diversion model construction method based on multi-vehicle-type system


    Additional title:

    基于多车型系统的高速公路改扩建交通分流模型构建方法


    Contributors:
    REN JIABO (author) / CHEN DASHAN (author) / XUN JINGCHUAN (author) / REN KAIBO (author) / WANG SHIJING (author) / YU QINGZHOU (author)

    Publication date :

    2024-11-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES



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