I figured this was coming eventually. The Shinkansen has no grade crossings and is essentially a long distance high speed metro line when it comes to how it’s operated. Signaling already uses ATC with auto-parking at major stops to help line up doors with platform gates. And with the exception of the Yamagata Shinkansen, it shares no tracks with any conventional zairaisen train services. #TokyoTrainNerd #TrainsOfJapan