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General

Work Schedules and Sleep Patterns of Railroad Signalmen

This report presents the results of a research study designed to characterize the work schedules and sleep patterns of U.S. railroad signalmen and to examine the relationship between these schedules and level of alertness of the individuals working the schedules. The study methodology was a...

Environmental Impact Statement for Pennsylvania Maglev Proposal

Due to our recent website upgrade some of the links in legacy documents might point to the decommissioned site location.  We recommend that users take advantage of the search engine above to locate the material they seek on the current website.  Be assured that we are working...