Why are freight trains so powerful?

The giant two-stroke, turbocharged engine and electrical generator provide the huge amount of power needed to pull heavy loads at high speeds. Cummins' locomotive engine weighs over 24,000 pounds (10,886 kilograms). The generator and electric motors add more mass on top of that.



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Derailments rank as the most common type of accident involving major freight railroads, federal data shows. Equipment failures are increasingly responsible for derailments, and problems with equipment and train tracks accounted for nearly 60% of derailments nationwide last year.

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Freight rail is generally held up as the safest way to transport massive amounts of hazardous material. It's a highly regulated form of transportation, and yet train derailments happen often in the U.S. In 2021 alone, there were 293 train derailments on, quote, main lines, meaning not in work areas or in rail yards.

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For the most part, it doesn't matter which way a modern locomotive faces, it works just fine either way. Typically though, the main reason some locomotives will be facing backwards is because turning trains is not always easy. In the past, you would need a wye, loop, or turntable to turn a train/locomotive around.

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Engines may be left idling to maintain important safety related functions such as maintaining engine temperature, air pressure for the brake system, the integrity of the starting systems, the electrical system and providing heating or cooling to a train's crew and/or passengers.

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Diesel fuel has become the preferred fuel for railroad locomotive use due to its lower volatility, lower cost, and common availability. The diesel engine (A) is the main component of the diesel-electric locomotive. It is an internal combustion engine comprised of several cylinders connected to a common crankshaft.

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Greenhouse gas (GHG) emissions are directly related to fuel consumption. According to EPA data, freight railroads account for just 0.5% of total U.S. GHG emissions and just 1.7% of transportation-related GHG emissions. Moving freight by rail instead of truck lowers GHG emissions by up to 75%, on average.

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Shipping via Rail is Environmentally Friendly In fact, moving freight by rail instead of truck lowers greenhouse gas emissions by 75%.

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Rail cars are far bigger than truck trailers What does that look like in terms of weight? Most rail cars can have a gross weight (the total weight of the load, including the weight of the rail car itself) of up to 286,000 pounds. Heavy axle rail cars can have a gross weight of up to 315,000 pounds.

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In general, freight trains typically operate at speeds ranging from 40 to 80 mph (64 to 128 km/h). However, some high-speed freight trains can reach speeds of up to 120 mph (193 km/h) on dedicated tracks.

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