 But westside service on this line did not begin until 1954, when Route 23 absorbed part of the route of the former Route 14, which had operated between Ellicott City and downtown Baltimore.Route 23 was extended west to Catonsville along the US 40 and the Edmondson Avenue corridor, serving Edmondson Village.At that time, the full route of Route 23 ran from Edmondson Village to Middle River.