This paper, on the one hand, aims to identify significant crash risk factors at unsignalized three-leg intersections connecting rural two-lane two-way roads and minor roads with a STOP control on the approaches (3ST) and, on the other, to make adjustments to the Highway Safety Manual (HSM) procedure, fine-tuning its Safety Performance Function (SPF) based on observation of the local context. Over an 8-year period of study, a total of 240 crashes on 35 3ST intersections were observed, with no geometric-infrastructure adjustments or changes in the Annual Average Daily Traffic (AADT) and surrounding context noted at the intersections investigated. To obtain reliable results, the study period was divided into two groups: (a) 5 years to calibrate a new SPF, and (b) the remaining 3, not included in the first dataset, were used to validate the results. A negative binomial regression model was adopted to calibrate the new SPF. It was found that the AADT on the major and minor roads, the intersection skew angle, the co-occurrence of left and right-turn lanes on the major roads, and lighting seriously affect the crash scenario.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Design Criteria for Improving Safety Performance of Rural Intersections


    Beteiligte:
    S. A. Biancardo (Autor:in) / F. Russo (Autor:in) / W. Zhang (Autor:in) / R. Veropalumbo (Autor:in)


    Erscheinungsdatum :

    2019




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Unbekannt




    Improving Safety at Unsignalized Rural Intersections in Kansas

    Shams, Alireza / Dissanayake, Sunanda | ASCE | 2014


    Safety Performance of Rural Offset-T Intersections

    Ingle, Anthony / Gates, Timothy J. | Transportation Research Record | 2020


    IMPROVING TRAFFIC SAFETY AT INTERSECTIONS

    Natalia Popovych / Olha Belenchuk / Yevhen Tepliuk | DOAJ | 2023

    Freier Zugriff

    Safety Performance Functions for Low-Volume Rural Stop-Controlled Intersections

    Stapleton, Steven Y. / Gates, Timothy J. / Avelar, Raul et al. | Transportation Research Record | 2019