The facilities that had been constructed were used by the Narita Airport Rapid Railway (Airport Branch Line of the Narita Line), and Tokyo Station on the Keiyo line was constructed later in the space where the Tokyo Station for the Shinkansen line was to be constructed.
建設済みの施設は成田空港高速鉄道線（成田線空港支線）に転用され、新幹線の東京駅が建設される予定だったスペースには京葉線東京駅が後に建設された。