Passage: Kubatanidza zvitsuwa zveHonshu neHokkaido nekubatana kwakagadziriswa kwaive kwafungidzirwa kubvira panguva yeTaishō (1912<unk>1925), asi kuongorora kwakakomba kwakatanga chete muna 1946, kwakakonzerwa nekurasikirwa kwenzvimbo dzekunze kwenyika pakupera kweHondo Yenyika II uye kudiwa kwekugamuchira vanhu vakadzoka. Muna 1954, maferi mashanu, kusanganisira iyo Tōya Maru, yakanyura muTsugaru Strait panguva yedutu, ichiuraya vafambi 1,430. Gore rakatevera, Japanese National Railways (JNR) yakakurumidza kuferefeta mugero. Chimwe chinonetsa kwaive kuwedzera kwekufamba kwevanhu pakati pezvitsuwa zviviri. Hupfumi hwehupfumi hwakaona huwandu hwekufamba kwevanhu paJNR-yakashanda Seikan Ferry hwakapetwa kaviri kusvika ku4,040,000 vafambi / gore kubva muna 1965, uye huwandu hwezvinhu hwakakwira zvakapetwa ka1.7 kusvika pamatani 6,240,000 / gore. Kufungidzira kwekuwedzera kwekufambisa kwepakati pezvitsuwa kwakafanotaurwa muna 1971 kwaizoita kuti pakupedzisira kugona kwechikepe kuchapfuura
kuwedzera kufamba pakati pezvitsuwa zviviri