Though they compromise the largest segment of the trucking industry, research involving local/short haul (L/SH) operations has been scant. In fact, little is known about the general safety issues in L/SH operations. As a precursor to the present research, Hanowski, Wierwille, Gellatly, Early, and Dingus (1998) conducted a series of focus groups in which L/SH drivers provided their perspective on safety issues, including fatigue, in their industry. As a follow-up to the Hanowski et al. work, the effort presented here consisted of an on-road field study where L/SH trucks were instrumented with data collection equipment. Two L/SH trucking companies and 42 drivers participated in this research. The analyses focused on determining if fatigue is an issue in L/SH operations. Of primary interest were critical incidents where drivers were judged to be at fault. The results indicated that fatigue was present immediately prior to driver involvement in at-fault critical incidents. Though it is difficult to determine why fatigue was present, the results seem to indicate that much of the fatigue that the drivers' experienced was brought to them to the job, rather than being caused by the job. The results of this research culminate in a set of guidelines to address fatigue and other safety issues in L/SH operations.


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    Impact of Local/Short Haul Operations on Driver Fatigue. Task 1: Focus Group Summary and Analysis

    R. J. Hanowski / W. W. Wierwille / A. G. Gellatly et al. | NTIS | 1998


    Short-Haul Trucks and Driver Fatigue

    D. L. Massie / D. Blower / K. L. Campbell | NTIS | 1997




    Fatigue in Long-Haul Charter Operations

    Wegmann, H. / Samel, A. / Vejvoda, M. et al. | British Library Conference Proceedings | 1995