55 Terms
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Railway
Relating to the infrastructure developed for the transport of trains.
Industry: Transportation
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Railway
unbalance speed
Transportation; Railway
Traveling through a curve faster than balance speed. This may also be expressed as the curve being under elevated for the speed. The amount of reduction in elevation from balanced can be as much as 3 ...
undercutter
Transportation; Railway
Production machine that removes the ballast from the track in one continuous operation.
uniform code of operating rules
Transportation; Railway
An operating rules book formerly used in the U.S.A.
unit train
Transportation; Railway
A freight train consisting of carloads of the same commodity moving from origin to one destination, on one day from one shipper to one consignee on one bill of lading.
v-max
Transportation; Railway
The maximum speed, based on a mathematical formula, permitted on a curve based on the average curvature and average superelevation.
