Pedestrian accessibility to a large four-leg roundabout can be improved by locating staggered crosswalks on all roundabout legs and signalising them to allow for two-stage crossing. A multi-level pedestrian signalisation (MPS) is developed for such roundabouts to balance pedestrian accessibility and vehicle mobility. With appropriate application of traffic control devices and traffic detection systems, the right-of-way is assigned to pedestrians and vehicles in three actuated modes. Signals at adjacent crosswalks can operate independently or as a group in a specific mode of right-of-way to prioritise pedestrians or vehicles. A number of traffic events are defined to autonomously manage signal operations second by second. Simulation results indicated that MPS had good operational stability and offered sufficient capacity for a large four-leg roundabout to serve traffic demand varying in a wide range. The appealing operational advantage of the MPS-enabled roundabout over the fully actuated conventional intersection may help prevent large four-leg roundabouts from being converted to conventional intersections.


    Zugriff

    Zugriff über TIB


    Exportieren, teilen und zitieren



    Titel :

    Multi-level pedestrian signalisation at large four-leg roundabouts


    Beteiligte:
    Xu, Hongfeng (Autor:in) / Zhang, Kun (Autor:in) / Zheng, Qiming (Autor:in) / Yao, Ronghan (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2018-05-22


    Format / Umfang :

    13 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Multi‐level pedestrian signalisation atlarge four‐leg roundabouts

    Xu, Hongfeng / Zhang, Kun / Zheng, Qiming et al. | Wiley | 2018

    Freier Zugriff


    Effects of Roundabouts on Pedestrian Safety

    J. R. Stone / K. Chae / S. Pillalamarri | NTIS | 2002



    Exploratory Simulation of Pedestrian Crossings at Roundabouts

    Rouphail, N. / Hughes, R. / Chae, K. | British Library Online Contents | 2005