Download the Brochure | Get the Flyer Route 501 Key Highlights Buses will run every hour to Arundel Mills Mall during daytime hours Monday to Sunday. Snowden River Park and Ride and the Dorsey MARC Station will be served Monday to Friday. Broken Land Parkway Park and Ride will not be served due to low ridership. Click Map to Enlarge Major Locations Served: Mall in Columbia Dobbin Center Snowden Square Snowden Park and Ride MD Food Center Dorsey MARC Station Arundel Mills Mall Changes will affect the following routes: 401, 402 A, 402 B, 403, 404, 405, 406, 407, 408, 409, 414 and 501