Quote:
Originally Posted by harryc
That is not how trains work - and they seem to hit about the right speed on this pair of turns (unlike Sheridan).
Coning of Wheels Civil Companion

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Actually, tracks are often super-elevated (banked). Look up "cant deficiency".
At this location, though, it would be pointless to superelevate the tracks - its right outside the Merchandise Mart station, so trains are already slowing down. It would also require some complicated engineering, since the CTA can't just pile up extra ballast under the outside rail.