Sea & Rail
Railroading
The working talk of hoggers, car knockers and dispatchers on North American rails.
- 108 terms
- 73 shop talk
- 7 topics
Railroad talk is spoken over the road channel, in crew rooms at two in the morning, at the yard office window and on the ground beside a train in the rain. It belongs to train and engine crews, dispatchers, carmen, track workers and signal maintainers, and much of it never appears in a rulebook. A hogger runs the train, a brakie lines the switches, a car knocker inspects the cars and a gandy dancer keeps the track in line. Outsiders hear a foreign language; insiders hear a precise one.
Precision is the point. On the radio every word has to mean exactly one thing: that'll do stops a shove, highball sends a train on its way, and a dispatcher reading a track warrant expects every limit repeated back word for word. The formal vocabulary of signals, authorities and air brakes, terms like CTC, restricted speed, brake pipe and DPU, sits alongside a thick slang layer that crews pick up on the job. Many of the best terms are ordinary English words bent to railroad use: frog, consist, cushion, goat, drag, bowl and pool all mean something specific here.
What separates an insider from an outsider is usually the everyday stuff. Saying CON-sist, calling the main line the high iron, knowing that a crew in the hole is waiting in a siding and that a crew dead on the law needs a dog catch. Railroaders talk constantly about time, because the hours of service law caps every trip, and about slack, because handling it well is what makes a good engineer. They also have names for each other: old heads, boomers, brass hats and foamers all have a place in the vocabulary.
Track and mechanical people add their own layer. A sun kink or a pull-apart shuts down a line, a plug replaces a bad piece of rail, a bad order goes to the rip track, and a hot box detector calls out its milepost and no defects to every passing train. Learn those, and the scanner chatter starts to make sense.
Who talks like this: Locomotive engineers, conductors, brakemen and switchmen, train dispatchers, yardmasters, carmen, track and signal maintainers, MOW gangs, railroad police and railfans.
Start here: ten words every newcomer needs
Consist
The makeup of a train, listing its locomotives and cars in order with weights, loads and hazmat.
Brake pipe
The air line running the full length of a train that charges and controls every car's brakes.
Slack
The free play in couplers and draft gear that lets cars move a little toward or away from each other.
Big hole
The emergency position of the automatic brake valve, which vents the brake pipe and stops the train as fast as possible.
Highball
A signal or radio call meaning proceed at full speed, and the verb for leaving or running fast.
Hogger
A locomotive engineer, the person who runs the train.
In the hole
In the siding, waiting for another train to pass on the main line.
Track warrant
A written authority from the dispatcher, copied by radio, that lets a train occupy a set stretch of main track.
Bad order
A car or locomotive with a defect that keeps it from running until it is repaired.
Dead on the law
Out of legal working hours under the hours of service rule, and required to stop work wherever the train sits.
Overheard on the job
Real-sounding lines from the floor, translated into plain English.
Hogger put it in the big hole at the crossing and we broke a knuckle forty deep.
TranslationThe engineer made an emergency brake application at a grade crossing, and the slack forces broke a coupler on the 40th car, so the train is split and needs repair before it can move.
We're in the hole at Elm for a hotshot and a stack train, and we die on the law at 1400.
TranslationThe train is waiting in the siding at Elm for two high-priority intermodal trains to pass, and the crew runs out of legal working hours at 2 p.m.
Lace 'em up, give me a set and release, and I'll walk the rear forty for the air test.
TranslationConnect the air hoses between the cars, apply and then release the brakes, and the conductor will walk the last 40 cars to confirm their brakes apply and release.
Cut behind the tenth, kick five into 6 and shove the rest into 8, that'll do at the clearance point.
TranslationUncouple after the tenth car, send five cars rolling free into track 6, push the remaining cars into track 8, and stop when they reach the point where they clear the adjacent track.
Detector called a hot box on axle 212, so we're setting out the bad order at the next siding.
TranslationThe wayside bearing scanner reported an overheated bearing, and the crew will leave the defective car in the next siding for repair.
Section gang's got a slow order on the plug at MP 212 till they weld it.
TranslationThe track crew has imposed a temporary speed restriction at milepost 212 over a newly installed piece of rail until it is welded in.
Old head bumped me off the goat, so I'm back on the extra board waiting on a call.
TranslationA senior employee used his seniority to take the yard engine job, so the speaker is back on the spare roster waiting to be called for whatever work comes up.
Air Brakes & Train Handling
11 termsHow engineers stop, start and control long, heavy trains: the air, the slack and the throttle.
- A cab safety device that applies the brakes if the engineer stops moving the controls or pressing its reset.
- Bail offalso actuate, bail them offTo release the locomotive's own brakes during an automatic application so that only the cars do the braking. Shop talk
- Big holealso emergency application, dump the airThe emergency position of the automatic brake valve, which vents the brake pipe and stops the train as fast as possible. Shop talk
- Brake pipealso train line, trainlineThe air line running the full length of a train that charges and controls every car's brakes.
- Dynamic brakingalso dynamics, dynamic brakeRetarding force made by turning a locomotive's traction motors into generators and burning the energy off as heat.
- Glad handsalso hose couplings, air hose couplingsThe coupling heads on the ends of air brake hoses, which lock together when two cars are joined. Shop talk
- Kickeralso dynamiter, UDE carA car whose brake valve throws the whole train into emergency when only a normal service application was made. Shop talk
- Run eightalso notch eight, run 8Running a diesel locomotive in its highest throttle notch, wide open. Shop talk
- Set and releasealso set and release test, a set of airApplying the train's air brakes and then releasing them, the basic sequence of every air brake test. Shop talk
- Slackalso slack actionThe free play in couplers and draft gear that lets cars move a little toward or away from each other.
- Tie downalso tie on, tie 'em downTo secure standing cars or a locomotive by applying enough hand brakes to keep them from rolling. Shop talk
Yard & Switching
17 termsSorting cars, building trains and the radio talk of switch crews in yards and at industries.
- Blockalso car blockA group of cars bound for the same destination, kept together so they can be handled as one unit.
- Blue flagalso blue signal, blue flag protectionA blue signal marking equipment that workers are on, under or between, which no one may couple to or move.
- Bowlalso class tracks, classification bowlThe set of classification tracks at the bottom of a hump yard where sorted cars collect. Shop talk
- Cutalso cut of carsA group of cars coupled together and handled as one piece; as a verb, to uncouple them. Shop talk
- Derailalso derailerA device on a rail that lifts a rolling car's wheels off the track before it can reach another track.
- Goatalso yard goat, switcherA yard switch engine, the locomotive that spends its life sorting cars around a terminal. Shop talk
- Hump yardalso hump, gravity yardA classification yard where cars are pushed over a small hill and roll by gravity into sorting tracks.
- Interchangealso interchange track, connectionThe handoff of cars from one railroad to another at an agreed junction track or yard.
- Kickalso kicking cars, make a kickTo shove a cut of cars, uncouple it on the move and let it roll free onto a track. Shop talk
- Lace up the airalso lace 'em up, hook up the airTo connect the air hoses between cars and open the angle cocks so the brake pipe runs through. Shop talk
- Linealso line a switch, line upTo throw a switch so it routes a train or car onto the intended track. Shop talk
- Pull the pinalso cut 'emTo uncouple cars by lifting the coupler's pin with the cut lever; also, to retire from the railroad. Shop talk
- Set outalso setout, set offTo leave a car or group of cars on a track short of the train's final destination. Shop talk
- Shovealso shoving move, back upTo push cars with the locomotive behind them, as opposed to pulling them. Shop talk
- Spotalso placement, spot and pullTo place a car at an exact location, such as an industry's loading door, pit or rack. Shop talk
- Switch listalso work list, the listThe list telling a yard or local crew which cars to move and where each one goes.
- That'll doalso that'll be good, that's goodRadio call telling the engineer to stop the move right there, the last words of a switching count. Shop talk
Dispatching & Signals
15 termsAuthorities, signals and meets: how trains get permission to move on the main line.
- CTCalso centralized traffic controlCentralized traffic control: signals and switches controlled remotely by a dispatcher who routes every train.
- DSalso dispatcher, train dispatcherDispatcher, as said on the radio: the person who controls train movements over a territory. Shop talk
- DTCalso direct traffic controlDirect traffic control: authority granted by named blocks of track on unsignaled lines.
- Highballalso highballing, highball itA signal or radio call meaning proceed at full speed, and the verb for leaving or running fast. Shop talk
- Hold the mainalso on the main, hold the main lineTo stay on the main track during a meet while the opposing train takes the siding. Shop talk
- In the holealso take the hole, head inIn the siding, waiting for another train to pass on the main line. Shop talk
- OSalso on sheet, OSingOn sheet: a report of the time a train passed a station, or the act of reporting it. Shop talk
- PTCalso positive train controlPositive train control: an onboard and wayside system that stops a train before it breaks a speed limit or authority.
- Restricted speedalso restricting, restrictedA speed slow enough to stop within half the distance you can see, used whenever the track ahead may be occupied.
- Saw-byalso sawing by, saw-by meetA meet at a siding too short for the train that has to take it, so the two trains work past each other in stages. Shop talk
- Sidingalso passing siding, passing trackA track alongside the main line, connected at both ends, where trains meet or let others pass.
- Slow orderalso speed restriction, TSRA temporary speed restriction on a stretch of track because of its condition, heat or work in progress. Shop talk
- Track warrantalso warrant, TWA written authority from the dispatcher, copied by radio, that lets a train occupy a set stretch of main track.
- TWCalso track warrant control, warrant territoryTrack warrant control: running trains outside CTC on dispatcher-issued warrants with fixed limits.
- Yellow boardalso approach, yellowAn approach signal showing yellow, warning the engineer to be ready to stop at the next signal. Shop talk
Track & Maintenance of Way
18 termsRail, ties, ballast and switches, plus the crews who maintain them and the defects they chase.
- Ballastalso rock, stoneThe bed of crushed rock under and around the ties that holds the track in line and drains water away.
- Frogalso frog castingThe crossing piece in a turnout or diamond where one rail passes through another and wheels cross the gap.
- Gandy danceralso section hand, track laborerA railroad track worker, especially one on a section or tie gang doing hands-on track work. Shop talk
- Gaugealso track gaugeThe distance between the inside faces of the two rails, 4 feet 8.5 inches on standard-gauge track.
- Hi-railalso hy-rail, hi-rail truckA truck fitted with retractable flanged wheels so it can drive on the track as well as on the road. Shop talk
- High ironalso main line, the mainThe main line, as opposed to sidings, yard tracks and branch lines. Shop talk
- Main linealso main track, the mainThe principal track or tracks of a railroad between terminals, where trains need authority to run.
- MOWalso maintenance of way, M of WMaintenance of way: the department and crews that build and maintain track, bridges and roadbed.
- MPalso milepost, mile postMilepost: the numbered marker that fixes every location on a railroad by distance along the line.
- Plugalso plug rail, rail plugA short piece of rail cut into the track to replace a section with a defect or a break. Shop talk
- Pull-apartalso pull apartA break in the rail, usually at a joint or weld, caused by the rail shrinking in extreme cold. Shop talk
- Ribbon railalso CWR, continuous welded railLong strings of rail welded together end to end and laid without bolted joints. Shop talk
- Shooflyalso shoo-flyA temporary track built around an obstruction, bridge job or wreck so trains can keep moving. Shop talk
- Spuralso industry track, spur trackA short dead-end track branching off to serve an industry or to store cars. Shop talk
- Sun kinkalso heat kink, track buckleA sideways buckle in welded rail caused by heat, which can throw the track out of line under a train. Shop talk
- Superelevationalso elevation, cantThe amount the outer rail of a curve is raised above the inner rail, measured in inches.
- Switch pointsalso points, switch railsThe pair of movable, tapered rails in a turnout that steer wheels onto one route or the other.
- Tiealso crosstie, sleeperOne of the crosswise beams that hold the rails to gauge and spread their load into the ballast.
Locomotives & Cars
15 termsPower, rolling stock, mechanical defects and the people who keep the equipment running.
- Bad orderalso BO, bad-orderedA car or locomotive with a defect that keeps it from running until it is repaired. Shop talk
- Car knockeralso carman, car toadA carman, the mechanical worker who inspects and repairs railcars and tests their brakes. Shop talk
- Crummyalso caboose, hackA caboose, the crew car at the rear of a freight train, with a cupola or bay window for watching the cars ahead. Shop talk
- Cushionalso cushion car, cushioned carA car fitted with hydraulic cushioning units at its couplers, built to protect fragile lading. Shop talk
- DPUalso DP, distributed powerDistributed power unit: a locomotive placed mid-train or on the rear and controlled by radio from the lead unit.
- EOTalso EOTD, FREDEnd-of-train device: a unit hung on the last car's coupler that reports rear brake pipe pressure and motion to the head end.
- Flat spotalso flat wheel, slid flatA flat area worn into a wheel tread when the wheel slides along the rail without turning. Shop talk
- Hostleralso hostlingA terminal worker who moves, fuels, sands and services locomotives inside the engine facility. Shop talk
- Hot boxalso hot journal, hot bearingAn overheated wheel bearing on a railcar, a defect that can burn the end off an axle if missed. Shop talk
- Hot box detectoralso HBD, defect detectorA trackside scanner that measures bearing temperatures on a passing train and radios a warning if one runs hot.
- Knucklealso coupler knuckleThe hinged, hook-shaped part of a railcar coupler that closes and locks to join two cars.
- Light enginealso lite engine, lite powerA locomotive or set of locomotives running without any cars attached. Shop talk
- Long hood forwardalso LHF, long end forwardRunning a road locomotive with its long engine hood leading and the short hood trailing. Shop talk
- Poweralso units, motive powerThe locomotives assigned to a train, or locomotives in general. Shop talk
- Rip trackalso RIP track, repair trackA yard track where carmen make light repairs to cars without sending them to a heavy shop. Shop talk
Trains & Traffic
10 termsThe kinds of trains that run on the railroad and what each one carries.
- Consistalso train consist, train listThe makeup of a train, listing its locomotives and cars in order with weights, loads and hazmat.
- Dragalso drag freight, tonnage trainA slow, heavy, low-priority freight train, often of bulk loads or empties. Shop talk
- Hotshotalso hot train, priority trainA high-priority train on a tight schedule that dispatchers move ahead of almost everything else. Shop talk
- Localalso way freight, peddlerA freight train that works the industries along a line, setting out and picking up cars at each customer. Shop talk
- Manifestalso merchandise train, carload trainA freight train carrying a mix of car types and commodities for many different customers.
- Pig trainalso piggyback, TOFCAn intermodal train hauling highway trailers on flatcars. Shop talk
- Rattleralso freightHobo and old-head slang for a freight train, especially one banging along with its slack running in and out. Shop talk
- Stack trainalso double stack, stacksAn intermodal train carrying shipping containers stacked two high in well cars. Shop talk
- Unit trainalso unitA train carrying a single commodity in identical cars from one origin to one destination.
- Varnishalso passenger train, the varnishFreight crew slang for a passenger train, after the glossy varnished finish of wooden coaches. Shop talk
Crew Life & Slang
22 termsSeniority, time on duty, the law and the nicknames railroaders use for each other.
- Beaneryalso lunch counterA cheap restaurant or lunch counter near a terminal or depot where railroaders eat. Shop talk
- Big hookalso hook, wreck craneThe wrecking crane sent to clear a derailment and lift cars back onto the track. Shop talk
- Boomeralso boomer brakeman, drifterA railroader who drifts from railroad to railroad, hiring on wherever the work is good. Shop talk
- Brakiealso brakeman, shackA brakeman, the crew member who handles switches, couplings and hand brakes under the conductor. Shop talk
- Brass hatalso officials, white hatA railroad official or manager, especially one who comes out from the office to check on crews. Shop talk
- Bullalso railroad bull, yard bullA railroad police officer, the special agent who patrols yards and trains for trespassers and thieves. Shop talk
- Bumpalso bumping, displacementTo use seniority to take a job held by someone junior, who is then displaced. Shop talk
- Callalso crew call, calledThe notice telling a crew member when and where to report for duty. Shop talk
- Cornfield meetalso head-on, cornfieldA head-on collision between two trains on the same track. Shop talk
- Dead on the lawalso outlawed, on the lawOut of legal working hours under the hours of service rule, and required to stop work wherever the train sits. Shop talk
- Deadheadalso DH, deadheadingTo travel as a passenger to or from an assignment, paid but not working the train. Shop talk
- Dog catchalso dog catcher, dog catchingTo relieve a crew that has run out of legal hours; the relief crew are the dog catchers. Shop talk
- Extra boardalso the board, extra listA roster of crew members with no regular job, called in rotation to fill vacancies and extra trains. Shop talk
- Foameralso railfan, rail buffA railfan, especially an excited one, as seen by the railroaders who work the trains. Shop talk
- FRAalso the FedsFederal Railroad Administration: the federal agency that sets and enforces railroad safety rules.
- Hoggeralso hoghead, hog headA locomotive engineer, the person who runs the train. Shop talk
- Hours of servicealso HOS, the lawThe federal limit on how long train and engine crews may stay on duty before mandatory rest.
- Old headalso old-timer, senior manA veteran railroader with long seniority, respected for knowledge and sometimes resented for it. Shop talk
- On the groundalso derailed, on the dirtDerailed: off the rails with at least one wheel down on the ties or ballast. Shop talk
- Poolalso pool freight, pool turnA group of road crews who rotate between two terminals in first-in, first-out order. Shop talk
- Rule Galso Rule G violationThe operating rule banning alcohol and drugs on duty, and shorthand for breaking it. Shop talk
- Tie upalso tie-up, go off dutyTo go off duty at the end of a trip or shift and record the final time. Shop talk
Frequently asked questions
What is the difference between a manifest and a unit train?
A manifest carries a mix of car types and commodities for many different customers, so it stops at classification yards to be broken up and rebuilt along the way. A unit train carries one commodity, such as coal, grain or crude oil, in identical cars from a single origin to a single destination, and it stays together for the whole trip. Unit trains are heavier and simpler to handle in terminals, while manifests do the detailed work of moving carload freight.
What does it mean to put a train in the big hole?
The big hole is the emergency position on the engineer's automatic brake valve. Moving the handle there vents the brake pipe to atmosphere through the largest opening on the valve, so every car's brakes apply at full emergency force within seconds. It gives the shortest possible stop, but the brakes cannot be released until the train has stopped, and the slack forces can break knuckles. Engineers use it for collisions, obstructions on the track and other emergencies.
What does dead on the law mean for a train crew?
Federal hours of service law limits train and engine crews to 12 hours on duty. When a crew reaches that limit it is dead on the law, also called outlawed: the train must stop and the crew may do no more work, even if the terminal is only a few miles away. The railroad sends a relief crew, known as dog catchers, to take the train in, and the outlawed crew rides back to rest.
Why do railroaders call an engineer a hogger?
Hog is railroad slang for a locomotive, so the person who runs one became the hogger or hoghead. Engineers use the word for themselves, and conductors use it on the radio and in the crew room. The formal title is locomotive engineer, and an engineer must hold a federal certification to operate a locomotive. Using hogger correctly signals that you know the trade from the inside.
What is the difference between CTC and a track warrant?
Both are ways a dispatcher gives trains permission to use the main line. In CTC, or centralized traffic control, the dispatcher lines switches and signals remotely, and trains simply obey the signal indications. A track warrant is a written authority read over the radio, with fixed limits that the crew copies and repeats back, used in dark territory and on signaled lines without CTC. CTC handles dense traffic, while track warrants govern quieter lines.
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