Four Port Authority bus routes currently serve the West Busway. One route is the flag carrier of the busway and terminate at the end of the thoroughfare. The G2 West Busway All Stops travels along the end of the busway to West Carson Street, crosses the Fort Pitt Bridge, then makes a loop through Downtown Pittsburgh. Another important route, the 28X Airport Flyer, uses the West Busway as far south as Bell Station; dedicated ramps connect the Busway to Interstate 376/US 22-30. Following the naming convention of each busway being designated by a color, bus routes that use the West Busway begin with a "G" for green.