This paper presents results from a simulation study which aimed to quantify the impacts of incident management strategies. The evaluation was based on a large-scale micro-simulation model covering an area approximately 122 square kilometres, including 43 kilometres of motorway and about 85 kilometres of surface roads on the Gold Coast, Australia. The study examined the effectiveness of selected incident management strategies including ramp metering, VMS information dissemination combined with route diversions, and variable speed limit systems. The provision of VMS information on the motorway and dynamic adjustment of signal timings on the diversion route resulted in equilibrium conditions and balanced distribution of traffic on both the normal and diversion routes when the optimal diversion rate was 30 percent. This resulted in reduction of delays by 8.8 percent, decrease in number of stops by 22 percent, and decrease in travel times by 3.3 percent. An important finding was that these benefits are only realised when the two incident management responses (VMS route diversion and dynamic traffic signal plans on surface roads) are implemented at the same time. Combined, their impact was such that they resulted in restoration of traffic conditions to the pre-incident situation. The paper also reports on a preliminary investigation into variable speed limits (VSL) as a means to reduce the negative impacts of incidents. The results showed that VSL had the potential to provide an 11 percent improvement in efficiency and also contributed to improving safety by homogenising the flow in higher speed regimes.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Traffic Impact Assessment of Incident Management Strategies


    Beteiligte:
    Dia, Hussein (Autor:in) / Gondwe, William (Autor:in) / Panwai, Sakda (Autor:in)


    Erscheinungsdatum :

    01.10.2008


    Format / Umfang :

    564003 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Using Simulation to Test Traffic Incident Management Strategies

    Wirtz, John J. / Schofer, Joseph L. / Schulz, David F. | Transportation Research Record | 2005



    Incident Management and Traffic Information

    Burghout, Wilco / Koutsopoulos, Haris N. / Andreasson, Ingmar | Transportation Research Record | 2010


    Generation and Assessment of Incident Management Strategies. Summary Report

    F. Mannering / B. Jones / D. H. Garrison et al. | NTIS | 1990