How long is a 150 car train?

A train of 150 cars—the FRA's unofficial definition of a long train—carrying iron ore would run about 3,500 feet long, but an intermodal train of the same number of cars might measure 33,000 feet, according to John Gray, the AAR's senior vice president of policy and economics.



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In each incident, the trains were hauling more than 200 rail cars, were at least 12,250 feet long and weighed over 17,000 trailing tons.

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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. An 8-car passenger train moving at 80 miles an hour needs about a mile to stop.

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A 150-car freight train at 50 mph needs 8,000 feet (1 and 1/2 miles) to stop; an 8-car passenger train at 79 mph needs about 6,000 feet (1 and 1/8 miles) to stop.

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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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There is currently no federal regulation limiting the number of cars in a train or number of crew needed.

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The longest regularly scheduled train in North America is Via Rail Canada's Canadian between Toronto and Vancouver, a distance of 2,775 miles (4,466 kilometers). The longest train in the USA is Amtrak's Texas Eagle between Chicago and Los Angeles via San Antonio, a distance of 2,728 miles (4,390 kilometers).

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Train engines generate thousands of horsepower and take an hour or more to warm up before they can start pulling rail cars. This is one reason there is reluctance to turn them off. Also, particularly relevant for a locomotive attached to a train, the brakes on the cars in the train do not work without power.

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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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High-speed trains can generally reach 300–350 km/h (190–220 mph). On mixed-use HSR lines, passenger train service can attain peak speeds of 200–250 km/h (120–160 mph).

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Union Pacific CEO Lance Fritz said recently that he doesn't think accident data shows that long trains are riskier. But the Federal Railroad Administration cited three derailments involving trains longer than 12,250 feet (3,734 meters) where train length was a factor in its advisory.

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The Big Boys were built for power. They did the work of three smaller engines, pulling 120-car, 3800 ton freight trains at forty miles per hour in the mountains of Utah and Wyoming. With power, though, comes weight - larger cylinders, pistons, drive rods, boiler and firebox.

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Explain that the train does because a 100-car train traveling 55 mph can take a mile to stop ? a distance equal to 18 football fields.

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While the average car engine has about 200 horsepower, locomotive engines typically range from 2,000 to 4,500 horsepower.

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The long noses are designed to reduce sonic booms in tunnels. Casablanca express: Africa's first, and so far only, dedicated high speed line carries trains at up to 320 kph (200 mph) between the port city of Tangiers and Casablanca.

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rather than pay for the expense of maintaining track to a higher standard, and having to maintain the additional cab signals, and having to outfit all locomotives that use the line with cab signals, or ATS, or ATC, the freight RRs simply place the speed limit at 79 mph, and use Automatic Block signal systems.

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At 250 miles per hour, a rider using the high-speed service would travel from Vancouver to Portland in under two hours. A rider could travel from Seattle to Portland in under an hour. The top speed of 250 mph for the project is faster than other rail services on the horizon in North America.

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