Can trains stop on tracks?

You can “slam on the brakes” in a train, but it will often take several minutes to come to a complete stop. If the crew sees a person on the tracks, obviously they will try to stop. However, in most cases, it is simply not physically possible to stop the train fast enough.



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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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Railroad tracks guide the train, acting as the low-friction surface on which the train runs and often transferring the weight of the train to the ground below. The track may also provide electrical power along the third rail, as you'll recall.

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Most trains do not know where they are or where to to stop. A few are operated automatically, but most have a DRIVER. It is the driver who knows where the train is and where to stop.

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Railroad tracks are private property, not public trails. It's illegal and dangerous to walk on or near tracks unless you're using a designated crossing.

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For trains the wheels and the rail are both steel, and the steel-steel friction coefficient is around 0.25. So the stopping time and distance will, at best, be three to four times greater than a car.

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The only safe place to cross railroad tracks is at a designated public crossing. Do not cross the tracks immediately after a train passes. A second train might be blocked by the first. Trains can come from either direction.

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What can stop a train in real life? The most common way is to use the brakes. The brakes are located on each wheel of the train and are applied by the train engineer. The engineer can apply the brakes manually or automatically.

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Standing upon (or making bodily-contact with) both wheel-rails of a railroad line simultaneously would almost-certainly not result in a life-threatening (nor even mild) electrical-shock of any sort (they are grounded and almost never carry any more than a few stray, harmless volts of electricity, if any).

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The middle of the train is by far the safest for persons. The National Transportation Safety Board does not release comprehensive data on where victims were sitting during fatal train accidents, though some details are available in individual investigative reports.

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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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Train Air Brakes: Also referred to as the Automatic brakes and train line brakes, are where the real knowledge and know how of a good engineer comes into play. This system is extremely effective at slowing and stopping a train using a brake pipe of continuously charged air which runs the full length of the train.

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It's Illegal Trespassing onto railroad property, including tracks, bridges, buildings and signal towers, is illegal. Violators are subject to a citation for trespassing. Union Pacific will seek removal from publication any photograph or video that violates this policy.

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Fact #4: Trains Can Stop, But Not Quickly It takes the average freight train traveling at 55 mph more than a mile to stop. That's the length of 18 football fields.

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“People assume that trains are loud, but that assumption is based on the fact that when a train's gone past them in a station it's noisy. That's because the noise a train makes is mainly projected to either side. When trains are moving directly towards you they are barely audible–until it's too late.”

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To help the wheels stay on the track their shape is usually slightly conical. This means that the inside of the wheel has a larger circumference than the outside of the wheel. (They also have a flange, or raised edge, on the inner side to prevent the train from falling off the tracks.)

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Modern locomotives use electric traction instead of gears as electric traction is much more flexible than gears. Diesel fuels generators from the combustion engine and transform the energy using an alternator, which runs the traction motors.

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Freight and passenger railroad cars and locomotives have flanges on the inside of the wheel. The inside of the wheel has a larger diameter than the outside. The flange keeps the wheels on the track. The same principle is used on model railroads and most toy trains.

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