With the challenges of increasing traffic congestion, the concept of managed lanes (MLs) has been gaining popularity recently as a means to effectively improve traffic mobility. MLs are usually designed to be left-lane concurrent with an at-grade access/exit. Such a design forms weaving segments since it requires vehicles to change multiple general purpose lanes (GPLs) to enter or exit the ML. The weaving segments could have a negative impact on traffic safety in the GPLs. This study provides a comprehensive investigation of the safety impact of different lengths for each lane change maneuver on GPL weaving segments close to the ingress and egress of MLs through two simulation approaches: VISSIM microsimulation and driving simulator. The two simulation studies are developed based on traffic data collected from freeway I-95 in Miami, Florida. The results from the two simulation studies support each other. Based on the two simulation studies, it is recommended that 1,000 feet be used as the optimal length for per lane change at the GPLs weaving segments with MLs. The safety impact of traffic volume, variable speed limit control strategies, and drivers’ gender and age characteristics are also explored. This study can provide valuable insight for evaluating the traffic performance of freeway weaving segments with the presence of concurrent GPLs and MLs in a highway safety context. It also provides guidelines for future conversion of freeways to include MLs.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Safety Impact of Weaving Distance on Freeway Facilities with Managed Lanes using Both Microscopic Traffic and Driving Simulations


    Weitere Titelangaben:

    Transportation Research Record: Journal of the Transportation Research Board


    Beteiligte:
    Cai, Qing (Autor:in) / Saad, Moatz (Autor:in) / Abdel-Aty, Mohamed (Autor:in) / Yuan, Jinghui (Autor:in) / Lee, Jaeyoung (Autor:in)


    Erscheinungsdatum :

    06.06.2018




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Analysis of Managed Lanes on Freeway Facilities

    Y. Wang / X. Liu / N. Rouphail et al. | NTIS | 2012


    Macroscopic and microscopic analyses of managed lanes on freeway facilities in South Florida

    Soheil Sajjadi / Alexandra Kondyli | DOAJ | 2017

    Freier Zugriff

    Microscopic Modeling of Traffic Within Freeway Lanes

    Bunker, J. M. / Troutbeck, R. J. / National Research Council et al. | British Library Conference Proceedings | 1995


    Microscopic Modeling of Traffic Within Freeway Lanes

    Bunker, Jonathan M. | Online Contents | 1995