Keywords

#horseshoe_curve

Horseshoe curve

Roadbed that turns 180 degrees

A horseshoe curve is a class of climbing curve in a roadbed that reverses turn direction (inflection) twice on either side of a single tight curve that varies through an angle of about 180 degrees or more.

Thu 8th

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Horseshoe curve Horseshoe Curve (Pennsylvania) Horseshoe Curve (disambiguation) Pittsburgh Line Altoona Curve Altoona, Pennsylvania The Horseshoe Curve Horseshoe (disambiguation) Pennsylvania Railroad 1361 Railroaders Memorial Museum
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