Why does hot weather delay trains?

In the case of extreme heat, the rails (made of steel) and the overhead power wires (made of copper) expand. A one-mile stretch of rail in the MAX system may expand up to a few inches. This rail has to go somewhere, and when it gets too hot it can actually bend or lay over on its side!



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The metal wires expand in extreme heat, which can make them sag. Reducing a train's speed cuts down on the heat it creates.

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Just as people can suffer sunburn or heat stroke from too much exposure to sunlight and hot temperatures, rail can bend or warp because of a blistering sun and sweltering temps. If the rail malformations known as a sun kink or track buckle aren't repaired in a timely manner, trains can derail.

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Reduced traffic: During the nighttime, there is generally less road traffic and fewer other trains on the tracks. This allows trains to move more efficiently and with fewer delays, as they encounter fewer obstacles and can maintain a consistent speed.

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For a variety of reasons the practice is less common in the 21st century, although a community of freight-train riders still exists. Typically, hoppers will go to a rail yard where trains stop to pick up and unload freight and switch out crew.

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Wood has the natural flexibility that is perfectly suited for the loads running on railroad tracks every day. Wood ties are engineered to perform under heavy load conditions. The durability of the wood tie means lower costs for railroads.

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Adzing of sleepers. The sleepers are cut at the rail seat to provide a slope of 1 in 20 to the rails. The process of cutting the wooden sleepers or casting of concrete sleepers accordingly is known as adzing of sleepers.

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Rails. Made of very high-quality steel alloy to withstand immense stress, rail segments are welded together to form a continuous line that supports railcar wheels. Continuous welded rail was first used in the U.S. in 1933, eliminating the telltale “clickety-clack” sound associated with trains.

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Even after the passing of a long, heavy train at track speed the increase in temperature of the rail head will be 1–2 degrees centigrade at most. Measurable by infrared, but not really noticeable by touching the rail (which you shouldn't be doing, anyway).

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It should elicit a fine of a couple hundred dollars, but it could land you a month (or more) in jail and a fine in the ballpark of $1,000. CLICK HERE for more of Esquire's Guide to Minor Transgressions!

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As far as I'm aware, there's no legal limit. Passenger trains do not normally exceed 12 cars (around 900 feet, dependent on rolling stock type), but many are much shorter than this.

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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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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 reason that trains honk their horns so much at night is because it's dark and the trains aren't so easy to see. Even though the lights are on, we sometimes can't see them coming, especially around the many blind curves near or ahead of the train station.

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Intense heat causes steel railroad tracks to expand and to buckle under the extra stress. Trains reduce their speed in extreme heat to put less additional force on the tracks, resulting in delays.

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One reason is that trains are generally much heavier than cars, and they are often traveling at higher speeds, which can cause them to shake or vibrate. In addition, trains typically ride on tracks that are not as smooth as roads, which can also contribute to vibrations.

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In hot weather, the overhead lines that provide power to the trains can expand and sag. To avoid damaging the lines, trains must travel more slowly. If the overhead lines are damaged, we have to cancel or divert train services until they are fixed. This causes delays.

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Lifetime of railway track is normally between 40-60 years.

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