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I am looking to gain a better understanding of turnout switch construction tolerances, and the associated risks. AREMA Portfolio Plan 1020-03 states there is a +1/32" tolerance in point rail rise. If I am reading this correctly, that +1/32" is the ...

Larry, I always said you were "one of the finest". Matt Weidner ------------------------------ Matthew Weidner PE Retired Cary NC ------------------------------

Curved crossing diamonds are extremely common in rail transit, as the attached image of the intersection of Lake & Wells in Chicago amply attests. Seen a few in railroad service, but none recently. The key issue when dealing with a curved ...

First, almost all of the previous replies have valid points. To supplement them, I offer the following: I have designed a track crossing 'diamond' of industrial sidings with both tracks curved - see the attached PDF. The tracks were each about 10 ...