 The line's extension is the reason for the S-curve north of the West Farms Square–East Tremont Avenue station.After the line's extension to 238th Street in 1917 and then Wakefield–241st Street in 1920, the Bronx Park spur was considered redundant.On March 1, 1951, the Board of Transportation announced a plan to implement express service along the White Plains Road Line between 241st Street and Third Avenue–149th Street using the middle third track.