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Old February 24th, 2016, 09:47 AM   #21
mrsmartman
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Old March 30th, 2017, 04:55 PM   #22
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What is the cause of the sharp curve in the subway alignment? Is there any plan to straighten the curve?

Does the train vibrate through the curve? Does the wheels produce noise at the curve? Does the curve affects the comfort of passengers?

Did any accidents happen around the curve? Is there any mechanism to avoid accidents at the curve? What is the maximum operating speed at the curve?
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Old April 1st, 2017, 06:44 PM   #23
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In Vienna it is apparently the curve of the subway line U2 between the stations Schottentor and Rathaus with a radius of 100 m. Not that extreme as some examples in this thread but still pretty tight.

This curve will cease to exist (at least in regular service, but maybe altogether) within the next years. In 2023 it will be finally replaced by the crossing of the two lines U2 and the newly built U5.
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Old April 18th, 2017, 03:41 PM   #24
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Quote:
Originally Posted by Minato ku View Post
Paris metro
Line 1: Bastille 38m (I did not include the 32m curve of the reverse loop at Porte Dauphine on line 2 because it is outside passengers service).

Paris metro has plenty of sharp curves.
You just have to look at the route of some lines to understand.

Paris Metro is the world record holder for the most reverse loops.









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