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Transportation

Any mode or method of locomotion that serves to move people, goods or services from one location to another.

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Transportation > Railway

variation (crosslevel)

Transportation; Railway

The change in crosslevel between two points exactly 31 feet apart in a "short spiral." (see definition of short spiral)

waivers

Transportation; Railway

See exemption.

warp

Transportation; Railway

See Difference-in-cross-level

welded rail

Transportation; Railway

Two or more rails welded together.

wetlands

Transportation; Railway

The transitional land between the terrestrial and aquatic environment where the water table is usually at or near the surface, or the land is covered by shallow water.

wheel impact load detector (wild)

Transportation; Railway

A device found in some Hot Box Detectors or as stand alones, which measure excessive wheel impact on rail.

wig wag

Transportation; Railway

A reference to the motion of lights on railway, vehicle-crossing signals.

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