Dynamic queuing transmission model for dynamic network loading

Nevena Raovic, Otto Anker Nielsen, Carlo Giacomo Prato

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    This paper presents a new macroscopic multi-class dynamic network loading model called Dynamic Queuing Transmission Model (DQTM). The model utilizes ‘good’ properties of the Dynamic Queuing Model (DQM) and the Link Transmission Model (LTM) by offering a DQM consistent with the kinematic wave theory and allowing for the representation of multiple vehicle classes, queue spillbacks and shock waves. The model assumes that a link is split into a moving part plus a queuing part, and p that traffic dynamics are given by a triangular fundamental diagram. A case-study is investigated and the DQTM is compared with single-class LTM, single-class DQM and multi-class DQM. Under the model assumptions, single-class models indicate that the LTM and the DQTM give similar results and that the shock wave property is properly included in the DQTM, while the multi-class models show substantially different travel times for two vehicle classes. Moreover, the results show that the travel time will be underestimated without considering the shock wave property
    Original languageEnglish
    JournalTransport
    Volume32
    Issue number2
    Pages (from-to)146-159
    ISSN1648-4142
    DOIs
    Publication statusPublished - 2017

    Keywords

    • Dynamic network loading
    • Dynamic queuing transmission model
    • Link transmission model
    • Kinematic wave theory
    • Queue spillbacks

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