State observability and demand estimation are two main issues in large-scale traffic networks which hinder realworld application of real-time control strategies. This study proposes a novel combined estimation and control framework (CECF) to develop perimeter control strategies based on macroscopic fundamental diagram (MFD). The proposed CECF is designed to operate with limited real-time traffic data and capture discrepancies in a priori demand estimates. The CECF is developed with a moving horizon estimator (MHE) that estimates traffic states, route choices and demand flows considering region accumulations and boundary flows observed from the network. The estimated traffic states are incorporated in a model predictive controller (MPC) to derive future control decisions in the CECF, which are then executed in the urban network. A novel accumulation based MFD model is developed in this study to address observability problem, which is incorporated in MHE and MPC as an analytical approximation of the urban network. The proposed CECF is implemented in a numerical simulation of a large-scale traffic network and preliminary scenarios are tested. The results confirm the success of the CECF to avoid observability issues and develop perimeter control strategies.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Demand estimation for perimeter control in large-scale traffic networks


    Beteiligte:


    Erscheinungsdatum :

    14.06.2023


    Format / Umfang :

    550517 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Traffic signal perimeter control with multiple boundaries for large urban networks

    Keyvan-Ekbatani, Mehdi / Yildirimoglu, Mehmet / Geroliminis, Nikolas et al. | IEEE | 2013




    Study of Cross-Correlations in Traffic Networks with Applications to Perimeter Control

    Zhang, Lele / Stuart, Callum / Rajapaksha, Samithree et al. | Transportation Research Record | 2017


    Traffic Demand Forecast and Control in Large-Scale Activities

    Zhang, Liang Zhi ;Jia, Lei ;Wang, Mei Xia | Trans Tech Publications | 2012