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	Classification yard - Wikipedia, the free encyclopedia
		A classification yard or marshalling yard (including hump yards) is a railroad yard found at some freight train stations, used to separate railroad cars on to one of several tracks.
		In Argentina all classification yards with the exception of Villa Maria are flat yards, though some of them have approx.
		Most hump yards are single yards with one classification bowl but some, mostly very large, hump yards have two of them, one for each direction, thus are double yards, such as Maschen, Clearing, and Bailey yards.
	en.wikipedia.org /wiki/Classification_yard (880 words)

	Selkirk Yard
		After yarding their train, inbound locomotives are uncoupled and proceed to the servicing facility where they are fueled and prepared for their next assignment.
		At the east end, or "pull-out" end, the 70 classification tracks converge into three tracks, or "pull-out leads", which are connected by a series of power-operated switches designed to permit simultaneous, parallel movements by several crews between the classification yard and the twin departure yards.
		The departure yards are parallel to the classification yard.
	www.trainweb.org /railnuts/yard.html (1542 words)

	UP-Bailey Yard: The World's Largest Railroad Classification Yard (Site not responding. Last check: 2007-10-31)
		Union Pacific Railroad's Bailey Yard in North Platte, Nebraska, is the largest railroad classification yard in the world.
		This massive yard covers 2,850 acres, reaching a total length of eight miles, well beyond the borders of North Platte, a community of 25,000 citizens.
		Of those, 3,000 are sorted daily in the yard's eastward and westward yards, nicknamed "hump" yards.
	www.uprr.com /aboutup/history/bailey/byclass.shtml (224 words)

	Compression (Site not responding. Last check: 2007-10-31)
		Yards are no different -- they are big places with miles and miles of track, which we can't hope to model in its entirety.
		A common plan uses three separate double-ended yards strung one after the other to move traffic efficiently: an arrival yard, a classification yard, and a departure yard.
		They are picked up there and moved to the classification yard, being switched back and forth as necessary to get the right cars onto the right trains.
	www.housatonicrr.com /compression.htm (370 words)

	Brosnan Yard Pushbutton Technology Moves the Freight
		The main purpose of a classification yard is to sort freight cars into groups according to their destination so that these blocks of cars may be easily detached when they reach their final terminal.
		The classification yard, consisting of 50 tracks with a capacity of 38 to 60 cars each, is north of the main tower.
		Hump operations are directed by a hump conductor from a classification console in his office near the crest of the hump.
	southern.railfan.net /ties/1967/67-11/bros.html (2189 words)

	Ragnar's HO Model Trains Weeb Site: Yards
		The type of classification yard illustrated is a "hump yard," where cars are pushed over a steep incline beyond which they run by gravity into various tracks.
		Modelers have long been fascinated by railroad freight yards, so a common pitfall is for modelers to design and build yards that are too large in relation to the rest of their pikes and to use them simply for storage.
		Yard tracks do not have to be straight, but any curves used in the approaches should be gradual; if they are not, coupling and uncoupling problems may be introduced.
	www.theweebsite.com /trains/yards.html (748 words)

	RAILROAD.NET - Hot Times on the High Iron - Today We Couple and Pull and Swing and Shove
		The hump yard on the west side of the facility had inbound trains coming from the north yarding in D Yard at Harvey, the north end of the complex.
		A Yard was rebuilt with several tracks added to allow most of the classification of freight to be moved from E Yard.
		We might have had to switch a cut of cars from an inbound train that was yarded on one of the thoroughfare tracks or in F Yard as the case may be and then swing some of the cars we switched out of that track over to A Yard.
	www.railroad.net /articles/columns/hottimes/hottimes_20031007.php (5149 words)

	Yard Design
		The yard switcher should always be able get to any track in one forward move, and to escape back to the lead from almost anywhere in the yard in one reverse move.
		Remember that the purpose of a classification yard is to collect incoming railcars, rearrange them and get them on trains that will take them to their destinations.
		The second compromise is to have both mains pass on the same side of the yard, with a pair of crossovers from the far main to the near main at either end, which allow trains on the far main to cross the near main and move into the A/D track(s).
	www.housatonicrr.com /yard_des.html (4883 words)

	[No title]
		Today the classification yard is viewed as only a temporary holding point until a car can match up with the right train going in the right direction.
		If your classification yard is overloaded (by the numbers or by experience), please consider the list of ideas to “unclog the yard” at the end of this clinic.
		Classification Yard Capacity On the average, half of the cars for any given type of train will be waiting in the yard.
	users.owt.com /prevette/Traffic_Flow_Handout.doc (1750 words)

	Please Don't Pick the Cherries
		Prototype flat (non-hump) classification yards are not typically operated in this fashion.
		Obviously, this yard is a little too full, but since we won't be getting any inbounds that situation will improve as we start to make our moves.
		My experience of watching many different operators of varying degrees of experience switch the same model yard suggests that experience and exposure play some role in how operators approach the task, but there is probably also some component of individual differences in the way we each see and categorize the world.
	home.earthlink.net /~mrsvc/id20.html (916 words)

	LONG ISLAND CITY Grand Central Project
		Next up are two pictures of what used to be the multiple unit classification yards.
		This area is on the west side of the buildings that separate the Amtrak yard from the classification yard.
		All of the area to the right used to be the classification yards.
	www.trainsarefun.com /lirr/licity/licity2.htm (843 words)

	Frisco's Tennessee Yard
		In making the choice, Yard Yard was considered not large enough for the new facility and the Harvard Yard near Marion, AR was considered an operational problem.
		The yard was equipped with an icing facility and a stock feeding and resting facility.
		This is a view of the bowl of the yard taken from the crest tower on September 1, 1980 during a tour of the yard
	www.cbu.edu /~mcondren/MRP/Memphis-Yards/Frisco-Tennessee-Yard.htm (863 words)

	NTSB - Abstract HZB-98/03
		Contributing to the severity of the failure was the brittleness of the tank steel, which promoted the rapid propagation of the overstress fracture and led to complete separation of the tank.
		1 The Selkirk yard covers 1,250 acres and consists of the receiving yard with 11 tracks and a capacity of approximately 1,700 cars, the classification yard with 70 tracks and a capacity of approximately 3,700 cars, north and south departure yards, and servicing facilities for locomotives, car cleaning, and repair.
		The classification yard, where new trains are made up, is east of the receiving yard.
	www.ntsb.gov /Publictn/1998/HZB9803.htm (1818 words)

	Chicago Great Western Yard
		The Oelwein yard was the hub of the entire CGW system, giving Oelwein its nickname of "Hub City".
		The preserved Chicago Great Western yard tower and office are at the corner of the business district in Oelwein, and are located at the northwest entrance to the yard.
		These large buildings, also across from the yard entrance, appear to be the old CGW shop facilities, although they were not well marked as to what they are being used for now.
	www.kc0jow.com /photos/CGW_20040629 (373 words)

	Freight Yards, What are all those tracks?, Part II: Transfer Yards
		The transfer yard also had a dedicated switch crew whose only task was to collect cars set aside in the train yard, pull them into the transfer yard, and complete the sorting for delivery to other roads.
		In a perfect world with unlimited space for a yard (prototype or model) there would be room for a dedicated track for every single railroad which would be served by the transfer yard.
		Ultimately this may mean a yard track dedicated to the MOP because of considerable interchange traffic, but Schumacher’s cars will be mixed in with those of the Reader (a short, short line in the swamps of southern Arkansas) and other roads which won’t generate much traffic on the eLandeL.
	www.gatewaynmra.org /articles/frt-yard3.htm (1326 words)

	Priority Based Classification
		Priority Based Classification allows a railroad to guarantee the connections of high priority cars in yards, while still running full trains everyday.
		To develop a yard plan without sequencing the hump, works about as well as planning two trains to meet at a place where there is no passing siding.
		Finally, a method of managing classification tracks is needed to ensure that trains are not built beyond their planned capacity.
	polaris.umuc.edu /~ekraft/pbc.htm (932 words)

	PRR Juniata Scales Revisited
		However, unlike modern hump operations, the Altoona classification was by gravity and cars were slowed manually by a brakeman who rode the cars down the incline to their designated track.
		After the initial classification, the waybills were realigned in their pigeon hole case for the corresponding track, preparatory to the clerk preparing the wheel report and waybills for the new eastbound crew.
		Further along the bridge toward the east end, the old Juniata Scales is visible to the west, as are the remnants of the Scales Classification yard under the bridge.
	www.trainweb.org /horseshoecurve-nrhs/Jscales.htm (1678 words)

	Harrisburg's historic Enola Yard is railroad hub [Brotherhood of Locomotive Engineers]
		The work is focused now on the historic Enola Yard, which has been a railcar classification facility since 1905 for the former Pennsylvania Railroad, Conrail and now Norfolk Southern.
		He said "not a whole lot" will change in terms of the number of jobs in the Enola Yard as a result of the classification work, and conceded that there might be a "slight reduction." About 380 employees work at Enola in all categories.
		Remote control, as automated freight classification is known, is controversial among the rail unions because it enables one or two workers to do what a crew of several employees did previously.
	www.ble.org /pr/news/headline.asp?id=8137 (1148 words)

	NYC Selkirk
		This laterally compressed take on the NYC's Selkirk, NY yard is still 238ft in length and 37ft in width (this is 2.2 scale miles by 0.34 scale miles).
		We conservatively estimate that the total capacity of all of the yard components, assuming standard O-gauge freight cars with length 12 inches, is 4000 units.
		While we do not believe someone will actually construct a detailed O-scale model of this yard, the individual yard units are both interesting and instructive in designing your own classification yards.
	www.rrtrack.com /html/nyc_selkirk.html (250 words)

	NJSAA/CSAO Plans
		It is a hump classification yard with a receiving yard, classification yard, forwarding yard, and several tracks for local and industry cars.
		This yard will continue to be the main classification yard for traffic moving to and from the NJSAA, especially general merchandise traffic.
		Croxton Yard in Secaucus, NJ is a six track intermodal facility diverging from the Northern Branch between South Kearny, NJ and North Bergen, NJ and generally paralleling NJT's Bergen County Line.
	centralnjfan.railfan.net /njsaa.html (3478 words)

	The Hotbox - details
		It is BN's largest yard, an average of 1600 freight cars are pushed over the computer controlled hump per day (24 hours) into the 63 track classification yard.
		The yard is made up of four primary components: working from north to south, there is a 12 track receiving yard, followed by a 9 track departure yard.
		Located in the center of the yard is the hump and hump tower with the bowl tracks of the classification yard beyond.
	info.detnews.com /hotbox/hotboxstory/details.cfm?id=72 (1874 words)

	Cedar Hill Yard in New Haven
		The Cedar Hill Yards were part of the New Haven Terminal which consisted of 25 yards and switching districts and provided a classification facility to serve the several routes which converged there.
		In some freight classification yards, gravity and sorting tracks are equipped with electrically (pneumatically controlled snubbing devices, known as "car retarders," which enable a man located in a tower to slow down or stop the car by the movement of a lever.
		The north end of Cedar Hill yard in New Haven is basically an open field; but there are three remaining brick hump towers, remnants of retarders at the top of one of the humps, a foot bridge and the LCL transfer platforms over grown with trees and weeds.
	www.lakemirabel.com /Railroad/CedarHill1.html (2585 words)

	Selkirk Super Facts, Mohawk & Hudson Chapter, National Railway Historical Society (Site not responding. Last check: 2007-10-31)
		The yard was graded for a capacity of 11,000 cars, although track for a smaller capacity was actually laid, and the site was estimated to have a potential capacity of 20,000 cars on 250 miles of track.
		One of the innovations of the new yard was to be a computer operated freight car classification system to handle the 2,300 cars per day which passed through Selkirk in 1966; Selkirk was reported to be the first application of this new technology.
		Also, there is a[n 11 track] receiving yard, a [13 track] north and [five track] south departure yard, and a local yard, for a total of 35 additional tracks with a total capacity of 4000 more cars.
	www.crisny.org /not-for-profit/railroad/se_2.htm (2647 words)

	Steve's Railroad Pages, Selkirk Super Facts
		Selkirk Yard was opened on November 20, 1924, the centerpiece of the "Castleton Cutoff." The original Selkirk Yard was two yards (not unlike today's Conway), eastbound and westbound.
		The eastbound yard was on the south side (where today's inbound and hump yards are), while the westbound hump was on the north side (where today's north departure is).
		The yard was rebuilt with a single hump; North Departure is where the second hump was.
	members.localnet.com /~docsteve/railroad/se_2.htm (2310 words)

	UP-Bailey Yard: An Economic Barometer of America (Site not responding. Last check: 2007-10-31)
		Bailey Yard handles daily an average of 135 trains bound for cities as distant as the East, West and Gulf Coasts of America, as well as the Canadian and Mexican borders.
		Bailey Yard's goods tell the story of American commerce, for through here pass refrigerators, TVs, coal, automobiles, potatoes, fruit, wine, lumber, corn, sugar, steel, chemicals and hundreds of other commodities used every day.
		As goes Bailey Yard, so goes the nation, for it is an economic barometer of America.
	www.uprr.com /aboutup/history/bailey/bycommod.shtml (195 words)

	Midwest Central Railroad Club (Site not responding. Last check: 2007-10-31)
		Cleveland is represented by the westbound staging yard; in between the staging yard and the main classification yard at Bellevue are the towns of Lorain and Vermillion.
		John recently added a steel works just outside of Lorain, part of which is pictured here along with shots of the NKP roundhouse at Bellevue and the Rocky River viaduct leading into Cleveland.
		The south part of the E represents the NKP's Cloverleaf route through Indiana and Illinois, terminating at the eastbound staging yard at Madison, IL.
	www.business.uiuc.edu /mwc/mwc_john_colombo.htm (210 words)

	The Gauge - Model Train Forum - Scale Railroad Discussion & Model Trains - Classification Yard Operations
		These are a couple of posts made by Dennis Storzek on the Ops-Ind List concerning operation of a classification yard.
		the tracks in the yard are used as "classification tracks"; these are the
		charged, either on yard air or with a locomotive, and the air tests made.
	www.the-gauge.com /printthread.php?t=8937 (1344 words)

	UPRR Hinkle Rail Yard (Site not responding. Last check: 2007-10-31)
		The Hinkle Rail Yard is located in a rural portion of Umatilla County, approximately three miles south of Hermiston, Oregon.
		The entire Rail Yard property encompasses approximately 2,755 acres and trends east to west covering a distance of over four miles.
		Currently, the Rail Yard is used for locomotive servicing, crew changeover, railcar maintenance, and as a classification yard.
	www.deq.state.or.us /er/hinklerailyard.htm (586 words)

	The Central New England Railway Yard at Maybrook, New York
		The major freight yard where the CNE connected with other railroads was at Maybrook.
		The switching yards were designed in such a way so as to keep the cars moving constantly in the same direction until their final arrival at the opposite end of the terminal where it would await movement to its final destination.
		Trains arriving at the terminal from the West would be left in the East bound Receiving Yard where they would be pushed over a gravity Hump, and continue moving eastward into C1assification Yard, then gathered together with other cars destined for New England destinations and placed in a train in the East bound Departure Yard.
	www.lakemirabel.com /Railroad/MaybrookYard.html (1753 words)

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