Subway vs Commuter Rail in Japan: both are high frequency, both have high-capacity designs, only superficial differencespic.twitter.com/4eEgmZkioi
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The Ginza and Oedo Lines also don't have any commuter interoperation. Ginza is 3rd rail, Oedo uses a linear induction motor.
JR East, Keisei, Tobu, Toyo Rapid, Shibayama, Saitama, Seibu, Keio, Tokyu, Odakyu, Keikyu, & Minatomirai all have interoperations w subwayspic.twitter.com/vTWs6A2ZwL
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