Vehicles that are instrumented with data collection equipment sufficient to meet the needs of transportation management/operations centers (TMCs/TOCs), State DOTs, MPOs, among other agencies who may be interested in monitoring fleet operations, as well as having some probe vehicle data to monitor system performance. This equipment includes a DSRC aftermarket safety device (ASD), which is an in-vehicle radio unit that generates the Vehicle Situation Data Message (VSDM), which transmits information to backend servers about the vehicles speed, direction, and location, as well as information from vehicle sensors to include status, environmental and weather information.