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A comment on NYC's brand new subway is the most expensive in the world. Parent comment

Re:NYC's brand new subway is the most expensive in the world by jessriedel on Sunday January 01, 2017 @08:42PM (#13298527)
> Tokyo Metro Fukutoshin Line: ¥250 billion for 8.9 km of new track. This is $280 million per km. Tokyo Metro has claimed future lines will be $500 million per km as a reason to not build future extensions.

https://pedestrianobservations.wordpress.com/2011/05/16/us-r...

Also note that Tokyo is much less dense than Manhattan. A better comparison would be Hong Kong, except that labor and other costs there will be dramatically less.

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Re:NYC's brand new subway is the most expensive in the world by jpatokal on Monday January 02, 2017 @01:21AM (#13299430)
Incorrect: Central Tokyo is denser (15,146/km² in the 23 wards) than Manhattan (10,194/km²).

https://en.wikipedia.org/wiki/Special_wards_of_Tokyo

Note that the entirety of the Fukutoshin Line was within the 23 wards.

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Re:NYC's brand new subway is the most expensive in the world by jessriedel on Monday January 02, 2017 @09:51AM (#13301392)
Thank you for providing Central Tokyo's density; it is certainly the best comparison to Manhattan in Japan. However, you are incorrect about Manhattan's density, which is 27,812.2/km²

https://en.wikipedia.org/wiki/Manhattan

and therefore still significantly larger than Central Tokyo's 15,146/km². The 10,194/km² figure you quote is for all of New York City (all 5 boroughs)

https://en.wikipedia.org/wiki/New_York_City

which is to be compared with 6,225/km² for Tokyo Metropolis (i.e., the city proper, not the greater metro area, which is 2,662/km²).

https://en.wikipedia.org/wiki/Tokyo

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Re:NYC's brand new subway is the most expensive in the world by jbm on Monday January 02, 2017 @06:19AM (#13300514)
Wakoshi is in Saitama.
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Re:NYC's brand new subway is the most expensive in the world by jessriedel on Monday January 02, 2017 @10:00AM (#13301450)
Just to clarify for folks who don't know Tokyo: Wakoshi is the first stop on the new Fukutoshin line, and it is located in Saitama, which is not in the 23 wards composing Central Tokyo.

https://en.wikipedia.org/wiki/Tokyo_Metro_Fukutoshin_Line

However, it's only a single stop on the line; the other 15 stops are in Central Tokyo.

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