Route 50 Erdman & Belair to Erdman & Belair – Sunday Route 50 Erdman & Belair to Erdman & Belair – Sunday Finding here serves as quick access to all bus transit times detailed route map or rate information. Counties, Baltimore City, Annapolis and Ocean City.MTA operates with local buses and passenger buses Light Rail, Subway, Regional Commuter Rail Service (MARC) from the Maryland region and a comprehensive Paratransit (Mobility).