Credit: Traffic travels along the Capital Beltway near Maryland Route 4 on Monday, Feb. 16, 2015. (WTOP/Rob Stallworth)

Slow your roll: Md. State Police launch speed enforcement initiative on I-495 this weekend

Arlington Memorial Bridge to close in early November to prepare for traffic shift

Daily inspections set after investigation into Metro door malfunction

Suspect wanted after stabbing at Congress Heights Metro station

Metrorail exploring factors that led to collision near DC station

Nightly road repairs start on George Washington, Clara Barton parkways