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Railroad track thermal expansion



A nice document which discusses this topic is available at:
www.solid.chalmers.se/anek/railways/general/tracks/suncurves.html

The title of the document is "Lateral Buckling of Tracks." In summary
the solutions to buckling are 1) lay jointed tracks 2) weld the joints,
securely fasten the tracks to underlying supports and use better ballast to
stabilize those supports.

Greg Clements