Why do trains have yellow fronts?

People need to be able to see and hear trains appropriately so they're able to stay safe. In Britain, historically train fronts were required to have a yellow panel in order to make them more visible, a move which came in the 1950s when newer diesel and electric trains were found to be far quieter than steam.



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Because of the restricted loading gauge of the tunnels and the need for the tubs to be small enough to be pushed by one man, these railways were almost all narrow gauge.

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American trains are typically longer and wider to accommodate more freight, while European trains are shorter and narrower to allow for more nimble movements and quicker acceleration.

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The gauge, know as “standard gauge” (4' 8.5?) is standard throughout much of Europe, though the US and Russia use wider gauges. Many former colonial countries use a narrower 3'6? gauge, however.

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Trains use their horns to signal what the train is doing. Weather they are approaching a crossing, or passing through or stopping at a town or station. 1 long horn blast means approaching station.

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The maximum speed currently possible in the UK is 186mph, achieved by Eurostar trains on the HS1 line between London and the Channel Tunnel. The HS1 line is used by Eurostar services and Javelin commuter services from Kent, although the latter have a max speed of 140mph.

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The longest UK train journey is Aberdeen to Penzance. Covering 785 miles, this train journey takes about 13 hours and 20 minutes to complete (give or take a few minutes).

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Lack of demand - there aren't many people wanting to go by train after 1 am in the morning. At night is the best time to carry out minor engineering and maintenance works. Freight trains run at night making it hard to schedule services.

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Narrow track gauges made building railroads less expensive. In addition, narrow track gauges allowed tracks to be built more quickly and easily on narrow routes. But broad gauges also had their advantages: better running properties of the train, higher load capacities even on poor ground, and higher speeds.

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Narrow gauge railroads tend to cost less to build, but may have lower weight limits. Standard gauge lines may cost more initially, but typically weight limits will be higher.

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Before the opening of the Qinghai–Tibet Railway in China, currently the highest in the world, the highest three railways were located in the Andean countries of Peru and Bolivia. In the Alps, the Jungfrau Railway has the particularity of reaching an elevation that is higher than the local snow line.

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Dividing trains operate on several lines on the British railway network, commonly (although not exclusively) in the south of the country. To ensure consistent journey times, the front part of a dividing train usually becomes the rear of the returning service when it reunites.

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The growth in train overcrowding is largely attributed to increased passenger demand, and the 'walk-up' nature of British railways, in which seat reservations are not required, combined with the inability to run extra trains due to the limitations of the current railway signalling system.

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How fast do our trains go? Well, they're not called high-speed trains for nothing. They can reach a top speed of 300 kilometres per hour (that's 186 miles per hour) on high-speed lines in the UK, France, Belgium, Germany, and the Netherlands.

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