The South Dakota Highway Patrol, State Office of Highway Safety and local law enforcement agencies ask motorists to "slow down and move over'' when they approach flashing yellow lights that indicate a crash scene or emergency vehicle on the highway.
In 2010, motorists who failed to slow down and move over struck 13 Highway Patrol vehicles and injured several troopers. Those troopers were on duty, responding to crashes or other roadside emergencies when they or their vehicles were struck. In addition, motorists struck more than three dozen South Dakota Department of Transportation snowplows as they cleared roads during snowstorms during the winter of 2010.
