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> Berlin’s U55 line cost $250 million per kilometer, Paris’ Metro Line 14 cost $230 million per kilometer, and Copenhagen’s Circle Line cost $260 million per ki
by ng12 10y ago
> Berlin’s U55 line cost $250 million per kilometer, Paris’ Metro Line 14 cost $230 million per kilometer, and Copenhagen’s Circle Line cost $260 million per kilometer.
Are these useful comparisons? How can you possibly compare a train running the length of Manhattan to anything in Copenhagen? I want to know how much a new train line costs in Tokyo.
- herval 10y agoThe answer to your Tokyo question is in the "compendium of international subway projects", linked in the article (which also contains those numbers you quoted)
- jessriedel 10y agoWhy not just answer his question and link to it?
- jessriedel 10y ago> 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-rail-construction-costs/ 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.
- jpatokal 10y agoIncorrect: 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 https://en.wikipedia.org/wiki/Special_wards_of_Tokyo Note that the entirety of the Fukutoshin Line was within the 23 wards.
- jbm 10y agoWakoshi is in Saitama.
- jessriedel 10y agoJust 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 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.
- jessriedel 10y agoThank 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 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 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 https://en.wikipedia.org/wiki/Tokyo
- pbz 10y agohttps://pedestrianobservations.wordpress.com/2013/06/03/comparative-subway-construction-costs-revised/ https://pedestrianobservations.wordpress.com/2013/06/03/comp... Not exactly Tokyo, but in Seoul between $43m/km and $87m/km, Hong Kong $586m/km, Singapore $600m/km.
- lobster_johnson 10y agoI wonder what those other cities are built on. The Second Ave subway's bedrock is schist [1] -- which is an extremely strong, durable type of rock. A quick glance at this [2] engineering book indicates Copenhagen is limestone. Apparently the same is true for Paris. Any engineers here who want to chime in about how that affects cost? [1] http://mobile.nytimes.com/2012/08/05/magazine/tunneling-below-second-avenue.html http://mobile.nytimes.com/2012/08/05/magazine/tunneling-belo... [2] https://books.google.com/books?id=6UAqS62NJDMC&pg=PA2616&lpg=PA2616&dq=copenhagen+bedrock+schist&source=bl&ots=hUa0ZXOwsc&sig=TcnFzKgNZRIw0pC6DLkp9PHokJA&hl=en&sa=X&ved=0ahUKEwjuu6KEuKLRAhXF7SYKHbg8AX0Q6AEITzAL#v=onepage&q=copenhagen%20bedrock%20schist&f=false https://books.google.com/books?id=6UAqS62NJDMC&pg=PA2616&lpg...