Is there a limit on train cars?

There is currently no federal regulation limiting the number of cars in a train or number of crew needed. Long trains often crash or derail in the simulator, said Iowa-based Railroad Workers United officer Jeff Kurtz, a locomotive engineer for 41 years who retired in 2014. They're a new phenomenon.



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The record-breaking ore train from the same company, 682 cars and 7,300 m or 7.3 km long, once carried 82,000 metric tons of ore for a total weight of the train, largest in the world, of 99,734 tonnes.

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Federal regulators limit the speed of trains with respect to the signaling method used. Passenger trains are limited to 59 mph and freight trains to 49 mph on track without block signal systems.

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The average freight train consisting of 100 cars and weighing anywhere from 12 million to 20 million pounds takes over a mile to stop in emergency braking.

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Car-miles measure individual vehicle-miles in a train. A 10-car train traveling 1 mile would equal 1 train-mile and 10 car-miles.

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Long trains take longer time to stop than a single car because the braking effort is not synchronized.

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AAR Interchange Rule 88 sets forth the minimum mechanical requirements for interchange of freight cars as well as the process and documentation required when undertaking changes to freight cars.

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Fastest Train in the World – 357.2 MPH The current world speed record for a commercial train on steel wheels is held by the French TGV at 574.8 km/h (357.2 mph), achieved on 3 April 2007 on the new LGV Est. The trainset, the track and the cantenary were modified to test new designs.

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Most American passenger trains travel on tracks that are owned by freight companies. That means most trains have to defer to freight services, leading to lengthy delays that scare off passengers who want to arrive on time. Domestic air travel in America is widely available, relatively cheap and popular.

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The average freight train is about 1 to 1¼ miles in length (90 to 120 rail cars). When it's moving at 55 miles an hour, it can take a mile or more to stop after the locomotive engineer fully applies the emergency brake.

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Modern trains have lots of stuff underneath. Motors, gearboxes, big boxes of power electronics, etc, etc. There is very little spare room under many trains, and chances are something will grab you and bundle you up into a disorganised mess of broken limbs. You probably won't die straight away, it'll take a while.

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The engine is the first car on a freight train, and the last car is usually the caboose. Besides being last, the other feature of a caboose is its use by the crew. Most of a freight train will be filled with whatever cargo they're transporting, and they need to use that space as efficiently as possible.

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“It comes out in shreds as small as your fist. The scrap steel from BART cars is sold to mills to create new products like rebar. The aluminum and copper are shipped to smelters and foundries to make new aluminum airplane and car parts, and copper wiring for home appliances and electronics.

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In the unlikely case there's no usable door (and that's very unlikely in a vehicle with that many doors), the windows can be used as an additional emergency exit in the case of an accident or fire. Windows are also very useful for looking into a train from outside.

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