Hump Yard
A marshalling yard used in hump shunting.
Hydrostatic Lubricator ...
Hump yard
Classification yards where strings of freight cars are slowly pushed over a hump, or small hill. When they reach the crest of the hump, the cars are uncoupled according to which track they are destined for.
Hump Yard
Railroad classification yard in which the classification of cars is accomplished by pushing them over a summit, known as hump, beyond which they run by gravity
Ingate ...
Hump Yard
A switching yard on an incline where, after movements by the engine, the cars are shunted by gravitational pull to their destination in a yard.
Ice Bunker (Refrigerated Car) ...
A hump yard (or: marshalling yard, classification yard) is a railroad yard found at some freight train stations, used to separate railroad cars via a track upon an artificially built hill (hump) onto different tracks for each direction using gravity.
Some hump yards are huge. Conrail's hump yard in Elkhart, IN (which is now part of Norfolk Southern) has some seventy-six classification tracks with all of them being fairly long.
In a hump yard, rail mounted brakes are used to control speed of cars (see Retarders).
Branch
A portion of a division designated by a timetable. Rules and instructions pertaining to subdivisions apply on branches.
Gravity - Shunting American gravity or hump yard car sorting or train marshalling undertaken without the aid of a shunting locomotive or switcher.
Bar code labels are fastened to the bottom of the rolling stock, and your computer can read the car numbers as they pass by (maybe even throw the turnouts automatically in that working hump yard to select the correct track for each car too!).
FIXED MAN"Switchman in a hump yard assigned to one certain post from which he rides cars being humped
FIXED SIGNAL"Derisive term for a student brakeman standing on a boxcar with his lamp out and a cinder in his eye ...
Also Classification Yard or Hump Yard.
Yardmaster: The person(s) responsible for conducting all traffic within the yard. The Yardmaster gives orders for which cars go where in order to assemble or disassemble a consist.
A device used for decreasing speed; often used in hump yards to control the rate at which cars roll down the hump and into the classification tracks.
Rheostat ...
Retarder
A device used for decreasing speed; often used in hump yards to control the rate at which cars roll down the hump and into the classification tracks.
It's also a common practice, especially with prototype railways, to build "hump yards." The uncouplers are built into a gentle slope so that the newly uncoupled cars roll slowly down the hill, away from the mainline.
Hump Yard
RAILWAYS. A freight yard where wagons are sorted by pushing them over a hill (hump) and letting them roll down under gravity, not coupled to a locomotive, to the desired tracks via a number of junctions.
 See also: Hump, Track, Train, Switch, Yard
  
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