FHWA organized a pooled fund study of 26 states to evaluate low-cost safety strategies as part of its strategic highway safety effort. One of the strategies chosen to be evaluated was the installation of flashing beacons at stop-controlled intersections. The intent of flashing beacons is to reduce the frequency of crashes related to driver unaware-ness of stop control. Geometric, traffic, and crash data were obtained at stop-controlled intersections for 64 sites in North Carolina and 42 sites in South Carolina. Empirical Bayes methods were incorporated in a before–after analysis to determine the safety effectiveness of installing flashing beacons while accounting for potential selection bias and regression-to-the-mean effects. Overall, installation of flashing beacons in North Carolina resulted in statistically significant reductions in total, angle, and injury-plus-fatal crashes. The intersections in South Carolina experienced little change following the introduction of flashing beacons, but the combined results from both states still indicated a statistically significant reduction in angle and injury-plus-fatal crashes. An economic analysis indicated that standard flashing beacons can achieve a 2:1 benefit–cost ratio.


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    Titel :

    Safety Evaluation of Flashing Beacons at Stop-Controlled Intersections


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:
    Srinivasan, Raghavan (Autor:in) / Carter, Daniel (Autor:in) / Persaud, Bhagwant (Autor:in) / Eccles, Kimberly (Autor:in) / Lyon, Craig (Autor:in)


    Erscheinungsdatum :

    2008-01-01




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Safety Evaluation of Flashing Beacons at STOP-Controlled Intersections

    R. Srinivasan / D. Carter / K. Eccles et al. | NTIS | 2008


    Effectiveness of flashing beacons

    Warinner, J.E. | Engineering Index Backfile | 1951



    Overhead 'Yellow-Red' Flashing Beacons

    J. B. Hammer / E. J. Tye | NTIS | 1987