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

Running rails

Railways; Railroad

Rails used to support the wheels of trails running over them.

A portion of the bridge structure receiving and transmitting vertical, transverse, or oblique stresses produced by externally applied loads, when supported at its end or at intermediate points and ...

Running tread surface

Railways; Railroad

The top surface of the railhead on which the wheel tread rides or runs.

Bridge seat

Railways; Railroad

The top surface of an abutment or pier upon which the superstructure span is placed and supported. For an abutment it is the surface forming the support for the superstructure and from which the ...

Scale

Railways; Railroad

The ratio between the size of the models and the size of the prototype. This can be expressed either as a ratio or as so many millimetres per foot (or fractions of an inch per foot for American ...