Minimum railway curve radius
Shortest allowable design radius for the centerline of railway tracks / From Wikipedia, the free encyclopedia
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The minimum railway curve radius is the shortest allowable design radius for the centerline of railway tracks under a particular set of conditions. It has an important bearing on construction costs and operating costs and, in combination with superelevation (difference in elevation of the two rails) in the case of train tracks, determines the maximum safe speed of a curve. The minimum radius of a curve is one parameter in the design of railway vehicles[1] as well as trams;[2] monorails and automated guideways are also subject to a minimum radius.
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