Express service on the IRT White Plains Road Line began on April 23, 1953 with alternate 5 trains using the middle track between East 180th Street and 149th Street during the weekday rush in the peak direction. Starting on October 2, 1953, 5 Thru-Express began running express between East 180th Street and Gun Hill Road using the middle track in order to encourage passengers who changed at Gun Hill Road for Third Avenue Elevated service to stay on subway trains. On June 7, 1954, to speed up service, thru-expresses began skipping 138th Street, allowing for one more train per hour. On June 16, 1958, these 5 trains resumed stopping at 138th Street, with 4 trains skipping the station during rush hours.