Railroad

Railroad

A railroad is a means of wheeled transportation for moving people and goods. Railroads are tracks on which trains can tow cars behind an engine.

Industry: Railways

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Railroad

throat of frog

Railways; Railroad

The point at which the converging wings of a frog are closest together just ahead of frog point.

A form of plow for clearing ice and snow from the inside of rails to provide a clear passage for wheel flanges. Sometimes placed under a special car called a flanger car, but usually carried under a ...

through span bridge

Railways; Railroad

A bridge in which the track is carried between girder or trusses. Girder and pony truss bridges (trusses without overhead braces) are called half-through spans; truss bridges with overhead bracing ...

flangeway

Railways; Railroad

Space between running rail and guard rail or timber in road crossing to provide clearance for passage of wheel flanges.

throw of switch

Railways; Railroad

The distance, measured along the center line of the rod nearest the point connecting the two switch rails, through which switch points are moved sidewise to bring either point against the stock rail; ...

flare opening

Railways; Railroad

Horizontal distance between the gage line of running rail and the side of the head of a guard rail or frog wing rail at the widest part of its flared end.