The purpose of the study was to determine the effect of large truck configurations on traffic operations while negotiating roads and streets with restrictive geometry. Truck types of concern included truck-tractor-semitrailers with trailer lengths of 40, 45, and 48 feet with trailer widths of 96 and 102 inches. Twin trailer combinations with 28-foot trailers were also tested. Trucks completing right and left turns at six intersections in New Jersey and California were observed. Some operational differences were seen, primarily increased turning time for the double compared to other truck types. Increased rates of encroachment over edgelines and adjacent lanes were also observed for the semi 48 compared to other truck types. Based on testing on approximately 60 miles of rural two-lane roads in New Jersey and California, the semi 48 and double resulted in some changes in operations of oncoming vehicles, particularly on narrow roadways. However, differences in lane placement of the trucks due to careful driving of the larger trucks may have partially compensated for operational differences in oncoming vehicles between truck types. Overall, driving behavior at urban and rural sites and site differences had more of an effect on operations than the effects of the different truck types tested.


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    Titel :

    Operation of Larger Trucks on Roads with Restrictive Geometry. Volume 1. Final Report


    Beteiligte:
    C. V. Zegeer (Autor:in) / J. E. Hummer (Autor:in) / F. Hanscom (Autor:in)

    Erscheinungsdatum :

    1987


    Format / Umfang :

    108 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




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