The invention discloses an expressway traffic state robust estimation method based on network connection vehicle trajectory data. The method comprises the following steps: constructing a virtual skew grid; calculating a traffic state representative value in each skew grid unit, and constructing a traffic state observation matrix; traffic state estimation is converted into a low-rank matrix completion problem; establishing a robust traffic state estimation model based on low-rank and sparse matrix recovery; an auxiliary variable is introduced to retain original state observation information, a robust traffic state estimation model is converted into a multivariable optimization problem, an alternating direction multiplier method is adopted to decompose the multivariable optimization problem into a multi-sub-variable optimization problem, and a plurality of sub-variables are iteratively updated. The method has high-precision and reliable estimation performance, provides more reliable support for refined active traffic management and control application, improves the robustness of a traffic state estimation model in a real application scene, and has higher calculation efficiency for a large-scale road network scene.

    本发明公开了一种基于网联车轨迹数据的高速公路交通状态鲁棒估计方法,包括:构建虚拟的斜交网格;计算每个斜交网格单元内的交通状态代表值,构建交通状态观测矩阵;将交通状态估计转化为低秩矩阵补全问题;建立基于低秩和稀疏矩阵恢复的鲁棒交通状态估计模型;引入辅助变量保留原始状态观测信息,将鲁棒交通状态估计模型转化为多变量优化问题,采用交替方向乘子法将多变量优化问题分解为多个子变量优化问题,迭代更新多个子变量。本发明具有高精度、可靠的估计性能,为精细化的主动交通管理与控制应用提供了更可靠的支撑,提升了交通状态估计模型在现实应用场景下的鲁棒性,面向大规模路网场景时具有更高的计算效率。


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    Titel :

    Highway traffic state robust estimation method based on network-connected vehicle trajectory data


    Weitere Titelangaben:

    基于网联车轨迹数据的高速公路交通状态鲁棒估计方法


    Beteiligte:
    XIA JINGXIN (Autor:in) / HE YANG (Autor:in) / WU MENGHAN (Autor:in) / AN CHENGCHUAN (Autor:in) / LU ZHENBO (Autor:in)

    Erscheinungsdatum :

    2024-01-26


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS




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