Automated Driver and Responder Alert System (ADRAS): Operational Field Assessment Report [open pdf - 4MB]
From the Executive Summary: "When working on roadways, the safety of responders and incident management personnel is at risk. Each year there are fatalities of and injuries to responders on roadways who are struck by motorists who may not see them. There is a need for additional mechanisms to alert motorists of an upcoming incident scene and to alert responders working on the roadway about oncoming vehicles. The U.S. Department of Homeland Security Science and Technology Directorate's First Responder Technologies Division (R-Tech) initiated a project with the goal of enhancing roadway safety for responders. The Automated Driver and Responder Alert System (ADRAS) is designed to alert motorists to use caution as they approach a roadside incident, and to provide audible, tactile and visual alerts to responders at the incident site when inbound vehicles pose a hazard. ADRAS consists of two main components: (1) a vehicle-mounted mast comprised of loudspeakers, a radar system, a low frequency tone siren and two video cameras, and (2) a safety vest enhanced with light-emitting diode (LED) lights and a small oscillatory motor."
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