Transportation Policy   The District Department of Transportation manages the city's transportation policies. Find out more about these policies below. DC Scenic Byways Program  DC Streetlight Policy and Design Guidelines Downtown Congestion Task Force   Downtown Congestion – Congestion Best Practices* Downtown Congestion – L Street Final Report* Downtown Congestion – Summary of Recommendations* Downtown Streetscape Regulations*  Mayor's Parking Task Force Report* Motor Carrier Management and Threat Assessment Study Noise Barrier Constructability Study Sidewalk Policy Tour Bus Management Initiative