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HS1 Domestic trains are a bit busy
Tom Barry writes:
How do they reduce the operating noise? Is it by running mainly through open countryside, tunnelling under towns, or what? The Stuttgart-Ulm project in Germany contains a staggering amount of tunnel - it's virtually a long-distance Tube line. The bits that aren't in tunnel are alongside an autobahn. The Chuo (maglev) Shinkansen (now in planning stage) is supposedly going to be 60% underground. The chosen route is 286km long, and very mountainous. ... The primary reason for the project's huge expense is that it is planned to run in a tunnel for more than 60% of the entire line, and 40 m underground (deep underground) for a total of 100 km in the Tokyo, Nagoya and Osaka areas. (http://en.wikipedia.org/wiki/ChÅ«Å_Shinkansen) From what I understand, one big reason for constructing the new line, instead of trying to increase speeds on the existing tokaido line, is aerodynamic noise in populated areas. I guess building 40m underground through sparsely populated areas should give them a bit of relief from that problem; sure it costs 50 billion dollars, but... -Miles -- Corporation, n. An ingenious device for obtaining individual profit without individual responsibility. |
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