Why Tokyo Makes You Tap Out and Back In at Some Stations
Tokyo's rail map is several companies sharing stations, not one network. Here's why the gates, transfers, and numbered exits work the way they do.
Rail Networks & Line Types
JR, subway, and private rail distinctions plus which lines serve which parts of Tokyo.
Tokyo's Subway Is Two Companies, Which Changes Your Transfer
Tokyo's subway is two companies, Tokyo Metro and Toei. Why some transfers stay inside one gate and others make you tap out and back in at a second gate.