United States Department of Transportation
i
Preview information in cab displays for high-speed locomotives
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2005-07-01
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[PDF-1.83 MB]
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Edition:Final Report September 1995-June 1997
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Abstract:This research examined the usefulness of preview information in the control of high-speed trains. Experiments were run on a
human-in-the-loop locomotive simulator. The primary goal was to examine whether the proposed information-aiding displays
improved safety and efficiency of train operation over an existing display. Safety was measured by monitoring speed control, signal
adherence, and reaction time. Efficiency was measured by monitoring stopping accuracy and schedule deviation.
Locomotive engineers and student participants performed similarly with respect to signal adherence and speed control. Preview
information was useful in both cases; Longer preview and variable preview displays provided the best results. The preview displays
were detrimental to accurate station-stopping, as the displays provided an inadequate level of resolution to stop accurately.
Although the locomotive engineers responded favorably to the preview displays, further work is needed to determine how the
engineer allocates attention between information in the cab and information outside the cab.
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