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Rubber-tired subways

Posted by Italianstallion on Mon Jun 25 22:24:21 2012

Just spent a few days in Paris, where 4 of the 16 metro lines have rubber tires. This technology was supposedly invented by the Parisians and was adopted by other systems, including Montreal.

After riding on one, I can't figure out the advantages over steel wheels. The only thing I can think of is eliminating the screeching around curves. As Paris has a lot of tight curves, this may make sense. But that doesn't explain why other cities used rubber for new lines with fewer curves.

Certainly, the rubber-wheeled trains were no faster than the conventional ones, and I wonder if the components last as long or are harder to repair than steel.

Any thoughts?

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