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Railways

The means of conveyance of passengers and goods by way of wheeled vehicles running on rail tracks.

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yard track (YT)

Railways; Railroad

A track within a yard used to receive cars for classification for rerouting.

switch-stand latch

Railways; Railroad

A device for catching and holding the lever of a switch stand in position; also called a switch keeper. Two latches are used at each switch stand.

lead rail

Railways; Railroad

See Closure rail.

lead track

Railways; Railroad

An extended track connecting either end of a yard with the main track.

actual lead

Railways; Railroad

The length between the actual point of switch and the half-inch point of frog, measured on the line of the straight track.

curved lead

Railways; Railroad

The degree of curvature in a turnout between the heel of the switch and the toe of the frog, measured on the centerline of the turnout track.

switch lamp lens

Railways; Railroad

A lens set in a switch lamp. A wide-angle lens, which spreads a light of low intensity over a wide area, is most commonly used with yard switches.