Beijing Subway--which barely existed 20 years ago--is now the world's busiest; has pretty wild rolling stockpic.twitter.com/8YRyt1KQSZ
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Shanghai's subway is even younger than me--first line opened in 1993. Grew slowly, then very quickly
#TrainTwitterpic.twitter.com/1RHQ53eoRY
Tokyo's subway had a very slow start, then a growth surge, then slowed down again
#TrainTwitterpic.twitter.com/uUL3eWP24i
You will notice that Tokyo's subway exists as a subset of a much more comprehensive suburban rail system, unlike Shanghai or Beijing
Compare: Tokyo subway network vs Tokyo railway network (includes subways)pic.twitter.com/93MpqG8nm8
did they need to go underground, or are parts light rail ?
Beijing's subway is mostly underground AFAIK but includes some light rail as well
interesting....always sounded like getting rights/etc in High-density NE US was what drives up $ of expansion, not a prob there
NE US is not very high density by Asian standards, nor very pro-labor by Euro standards, yet more expensive than both
corruption, incompetence, and extravagance are the main cost inflators in American subway construction
ah good points - forgot I think I got that from IYI @asymmetricinfo
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