South Dakota

Two interstate highways buckle due to excessive heat in South Dakota

New research identifies curves, investigates how drivers react to them

The First Speed Limit Law Was Passed On This Day In 1901

Highway Patrol encourages motorists to move over

Stopped train upsets neighbors

South Dakota ranked 4th worst state for teen drivers

U.S. Department of Transportation expands and accelerates Takata air bag inflator recall to protect American drivers and passengers

Department Of Transportation Awards Eight Million For Bridge Repairs

Americans say road usage fees best way to pay for transportation infrastructure

Anti-distracted driving campaign takes off