Will trains run if too hot?

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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Under the guidelines laid out in the sheet, a rail temperature of 131 degrees requires a maximum speed of no more than 100 mph; a rail temperature of 140 degrees calls for a top speed of no more than 80 mph.

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When air temperature reaches 30°C, rails in the sun can reach 50°C. In the UK a temporary speed restriction is imposed when rails reach this temperature because trains apply less pressure on the rails when they slow down. Some railway maintenance teams paint rails white to cool them down in summer.

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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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In the United Kingdom, CWR is stressed to 27 °C (81 °F), the mean summer rail temperature. In the US, standard stress free temperatures vary from 35 to 43 °C (90 to 110 °F). Despite stressing the CWR before installation, a rail may still reach its Critical Rail Temperature (CRT).

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Some London Overground trains are air conditioned, others are air cooled depending on what unit you travel on Only the four 'sub-surface' Underground lines have air-conditioned trains. All new Class 345 trains - now running through the centre of London, have air conditioning.

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Railway electrification in Great Britain began in the late 19th century. A range of voltages has been used, employing both overhead lines and conductor rails. The two most common systems are 25 kV AC using overhead lines, and the 750 V DC third rail system used in Southeast England and on Merseyrail.

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If the train company does not offer seat reservations on the train you are travelling on, the reservation ticket will specify the date and time of travel. In this case, you may sit in any available seat on the specified train, appropriate to the class of your ticket.

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Do British trains have toilets like US trains do? Some do, some don't. On many commuter trains passengers only travel a short distance, these do not have toilets (the new Elizabeth Line for example), but the London to Birmingham express would have toilets.

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When it rains, the tracks become slippery and the train must slow down in order to accommodate for the extra time the train will need to brake. The lack of friction that water causes will cause the conductor to slow the train so that braking won't take so long.

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How does a train go uphill? Trains use several methods to ascent gradients. Most trains use the adhesion method, the weight of metal wheels on the metal track allows the train to move forward and upwards under its own power. Among the steepest adhesion worked railway are in Switzerland with a gradients of 7% (1 in 13).

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While modern trains won't litter the tracks with human excrement, the traditional method did just that. This is what was known as a hopper toilet. It could either be a simple hole in the floor (also known as a drop chute toilet) or a full-flush system.

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Some train drivers are changing sanitary towels in bushes by the side of the track – that's outrageous in a first world country in 2021. Others urinate or defecate into carrier bags and bottles.

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Does the Train Conductor Sleep on the Train? In a word, no. Neither the conductor nor the engineer is allowed to sleep on the train. They must be awake and alert throughout their entire shift.

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