Virginia Tech Transportation InstituteCamden, Matthew C.Soccolich, Susan A.Hickman, Jeffrey S.Hanowski, Richard J.2015-07-012015-07-012014-08-25Camden, M. C., Soccolich, S. A., Hickman, J. S., & Hanowski, R. J. (2014, August). Examining the Relationship between Drug Use and Involvement in a Safety-Critical Event. Paper presented at the Fourth International Symposium on Naturalistic Driving Research, Blacksburg, VA. Presentation retrieved from http://www.apps.vtti.vt.edu/PDFs/ndrs-2014/Camden-2014.pdfhttp://hdl.handle.net/10919/53991application/pdfen-USIn CopyrightCaffeineFatigueSafety critical eventsExamining the Relationship between Drug Use and Involvement in a Safety-Critical EventPresentationhttp://www.apps.vtti.vt.edu/PDFs/ndrs-2014/Camden-2014.pdf