Why do trains back up at crossings?

One of the reasons trains need to back up is to the couple and decouple the cars that it pulls. Another good reason is that it is sometimes difficult for the train to turn around. There are of course other reasons. A train will go forward and back when it is occupying a crossing and stops on its tracks.



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Being the engineers in a push-pull train was considered to be a special skill. Today, the second locomotive is operated by remote control. And the reason the two locomotives face in opposite directions is that it makes them reversible when they get to wherever it is that they're going.

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If you hear, two small horns, it means the motorman is asking the guard to direct the railway signal to start the train. In case you hear three smaller horns, it suggests that the motorman has lost control over the train. This also acts as a signal to pull the vacuum break immediately. This signal is rarely heard.

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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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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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Trains on the same track cannot pass each other like buses can, and so to increase speed, changes can only be made in terms of headway, or in which stations are served. Skipping stations increases the average speed of trains, thus making journeys quicker and more appealing to commuters.

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Trains cannot collide with each other if they are not permitted to occupy the same section of track at the same time, so railway lines are divided into sections known as blocks. In normal circumstances, only one train is permitted in each block at a time. This principle forms the basis of most railway safety systems.

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Biodiesel & Renewable Fuels: Traditionally, locomotives have run on petroleum diesel fuel, but railroads are now using renewable diesel and biodiesel blends to power them.

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Where does a train conductor sleep? Conductors and engineers sleep at home or at a hotel at their away terminal. The operating crew of a train in the US can only be on duty for 12 hours and then must be relieved.

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Pulling allows normally higher tractive forces than pushing. This has not really something to do with the locomotive, but with the couplers (and buffers, if present). It does become critical when tight curves, as they do exist with switches set to deviation, are involved.

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Apparently, the freight train business is declining, and therefore the railroads don't need so many cars. So they park them on sidings, as rail yards don't have enough room to keep all of the extra cars.

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Train whistles are used to communicate with other railroad workers on a train or in the yard. Specific combinations of long and short whistles have specific meanings. They are used to pass instructions, as a safety signal, and to warn of impending movements of a train.

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