Thacker, Katie2013-05-062013-05-062005-09-07http://hdl.handle.net/10919/21957Researchers from the Center for Truck and Bus Safety and the Hardware Engineering Lab at the Virginia Tech Transportation Institute (VTTI) traveled to Washington Aug. 19 to demonstrate the technology and methods used in their Drowsy Driver Warning System Field Operational Test as well as other transportation research.text/htmlIn CopyrightPress releaseVirginia Tech. University Relations