 The line was converted back to single track in order to make way for a parallel freight line.Service to the airport island resumed on 20 April 1956 when the line was extended to a new Haneda Airport Station (present-day Tenkūbashi Station), and from 1 November 1963 the line was renamed the Airport Line.It was not commonly used to access the airport for many years, as frequencies were limited and no through services to central Tokyo were offered, in comparison to the Tokyo Monorail which provided direct service from Hamamatsucho to the airport terminal beginning in 1964.