The Federal Highway Adminstration (FHWA Saxton Transportation Operations Laboratory is comprised of three testbeds: a Data Resources Testbed , a Concepts and Analysis Testbed, and a Cooperative Vehicle-Highway Testbed. The Concepts and Analysis Testbed incorporates a repository of transportation models at the macroscopic, mesoscopic, and microscopic levels to allow simulation runs and visualizations of representative traffic networks and experimental strategies to improve performance, including measures of safety (to some extent), mobility, and environmental performance.&nbs
