2019-02-052019-02-052013-12http://hdl.handle.net/10919/87459This annual report documents the center's research and positive impact on transportation safety in 2013.application/pdfenIn CopyrightNational Surface Transportation Safety Center for Excellence Annual Report, January - December 2013Annual reporthttps://www.vtti.vt.edu/PDFs/2013-nstsce-annual-report.pdf