How do modern trains stop?

The primary way to stop a train is using the air brake system located on the trailing freight cars behind the locomotives. A locomotive equipped with dynamic brakes can be a powerful tool for the engineer to help stop or control the speed of the train in addition to the train brakes.



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A train's automatic brake system is supplied with air from compressors located on each operating locomotive. The air is filtered, dried, compressed, and stored in the locomotive's main reservoirs. Air pressure in the main reservoirs is maintained between 130 and 140 psi.

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Trains can't stop quickly. A freight train can take up to a mile to come to a complete stop. A locomotive engineer who suddenly sees someone on the tracks is not be able to stop in time.

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Trains can't stop quickly or swerve. 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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Physics, the trains are very heavy, and therefore have a huge amount of rolling mass that produces momentum, there is also very little friction between steel wheels on steel rails, and it takes up to a mile of distance for a planned stop when traveling at speeds in excess of 50 MPH on a fully loaded freight train.

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The position of the train driver differs from that of the conductor in that the former is in charge of running the locomotive while the latter manages the cars, including the crew, passengers and their activities.

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The motor man and conductor can look out the window to make sure nobody was leaving or entering the train. In some stations mirrors and cameras help out. The key thing though is that the doors are equipped with travel detection so that if they cannot close they will reopen.

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Trains can't stop quickly or swerve. 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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a magnet on the track, when the train runs over the magnet it will warn the driver to stop; a transmission loop that tells the train the signal is red, this will trigger the train computer to apply the brake.

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Railroad tracks are private property, not public trails. It's illegal to walk on the tracks unless you're at a designated crossing. It's extremely dangerous to walk, run, or drive down the railroad tracks or even alongside them.

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You do not continue accelerating while you are in the air, but the train does, so as soon as you are airborne the train gains speed over you. You would land some distance behind where you started. The longer you stay in the air and the faster the train accelerates, the bigger the distance.

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It is absolutely not legal to ride on any part of a freight train without the express permission of the railroad. You would be guilty of trespassing and of theft of service since you would be getting railroad transportation without paying for it.

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