The rate of fatalities at signalized intersections involving heavy vehicles is nearly five times higher than for passenger vehicles in the US. Previous studies in the US have found that heavy vehicles are twice as likely to violate a red light compared with passenger vehicles. Current technologies leverage setback detection to extend green time for a particular phase and are based upon typical deceleration rates for passenger cars. Furthermore, dilemma zone detectors are not effective when the max out time expires and forces the onset of yellow. This study proposes the use of connected vehicle (CV) technology to trigger force gap out (FGO) before a vehicle is expected to arrive within the dilemma zone limit at max out time. The method leverages position data from basic safety messages (BSMs) to map-match virtual waypoints located up to 1,050 ft in advance of the stop bar. For a 55 mph approach, field tests determined that using a 6 ft waypoint radius at 50 ft spacings would be sufficient to match 95% of BSM data within a 5% lag threshold of 0.59 s. The study estimates that FGOs reduce dilemma zone incursions by 34% for one approach and had no impact for the other. For both approaches, the total dilemma zone incursions decreased from 310 to 225. Although virtual waypoints were used for evaluating FGO, the study concludes by recommending that trajectory-based processing logic be incorporated into controllers for more robust support of dilemma zone and other emerging CV applications.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Using Connected Vehicle Data to Reassess Dilemma Zone Performance of Heavy Vehicles


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:
    Li, Howell (Autor:in) / Platte, Tom (Autor:in) / Mathew, Jijo (Autor:in) / Smith, W. Benjamin (Autor:in) / Saldivar-Carranza, Enrique (Autor:in) / Bullock, Darcy M. (Autor:in)


    Erscheinungsdatum :

    2020-04-04




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch





    An Integrated Dilemma Zone Protection System Using Connected Vehicle Technology

    Zha, Liteng / Zhang, Yunlong / Songchitruksa, Praprut et al. | IEEE | 2016


    Traffic Signal Priority Control Strategy for Connected Emergency Vehicles with Dilemma Zone Protection for Freight Vehicles

    Das, Debashis / Altekar, Niraj Vasant / Head, K. Larry et al. | Transportation Research Record | 2021


    Public inquiry to reassess cybercrime laws

    British Library Online Contents | 2004