Travelers in the vicinity of Union Station can see that Columbus Circle, the plaza out front, is lined with construction barriers. The District Department of Transportation has begun an 18-month project that should improve access and safety throughout the plaza.

DDOT said the work area will include the roadway adjacent to Union Station on the east and west sides, Columbus Circle, First Street NE between Massachusetts Avenue and G Street, Columbus Drive NE between Massachusetts Avenue and F Street and the streets that intersect Massachusetts Avenue at Columbus Circle.

During construction, the bus, car and taxi drop-off lanes in front of the station will remain open. Traffic lanes on Massachusetts Avenue and around the plaza will be reduced as necessary, DDOT said.