What is the highest standard-gauge railway in the world?

The Central Railway of Peru: The Highest Standard Gauge Railway in the World.



The highest standard-gauge railway in the world is the Qinghai-Tibet Railway (or Qingzang Railway) in China. The line reaches its highest point at the Tanggula Pass, situated at an astounding 5,072 meters (16,640 feet) above sea level. This 1,956-kilometer engineering marvel connects Xining to Lhasa and includes the Tanggula Railway Station, which is the highest railway station in the world. Because the air is so thin at these altitudes, the trains are specially designed with an integrated oxygen enrichment system for the passenger cabins and UV-coated windows to protect against intense high-altitude radiation. The locomotives are also custom-built to operate in the extreme cold and low-oxygen environment of the "Roof of the World." This standard-gauge line (1,435 mm) surpassed the previous record held by the Ferrocarril Central Andino in Peru. Traveling this route in 2026 provides breathtaking views of the Tibetan Plateau, permafrost landscapes, and the Kunlun Mountains, offering a unique "land-cruise" experience that is considered one of the greatest rail journeys on the planet.

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If locomotives were imported from elsewhere, especially in the early days, the track would be built to fit them. In some cases standard gauge was adopted, but many countries or companies chose a different gauge as their national gauge, either by governmental policy, or as a matter of individual choice.

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The standard Russian railway gauge of 1,524 mm quickly spread throughout the Russian Empire, reached Warsaw, Vladivostok, Murmansk, and Baku.

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In fact, it is known as the “Iberian gauge”. This can be traced back to 1844, when a group of technicians stated that, due to the Spanish and Portuguese orography, the width of the inner sides of the tracks had to be increased.

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The United States has the world's longest railway network, followed by China and India.

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Iceland has no public railway network, and this is because of stiff competition from the automobile traffic, a small population, and harsh environmental conditions. There have been abandoned proposals for a railway network since the early 1900s.

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The Jungfraujoch railway station has earned the title “Top of Europe”. If only because of its location. It lies 3,454 metres above sea level and is thus the highest railway station in Europe.

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Length of highspeed railway lines in use worldwide in 2022, by country. As of 2022, China had by far the longest high-speed railway network in the world with almost 40,500 kilometers of high-speed rail lines; the country was followed by Spain and Japan, both with more than 3,000 kilometers of high-speed rail each.

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It mandated the track gauge with a width of 1435 mm to be the standard for Great Britain. At that time, the UK was the only one capable of exporting railway rolling stock. As a result, the vast majority of railways in Europe adopted the 1435mm gauge.

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The rail network of Switzerland is one of the densest and spectacular in the world. It covers a total length of 5063 km of lines with 3652 km on international gauge 1435 mm, 1312 km on metre gauge and 68.5 km of 800 mm or 750 mm gauge.

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In fact, it is known as the “Iberian gauge”. This can be traced back to 1844, when a group of technicians stated that, due to the Spanish and Portuguese orography, the width of the inner sides of the tracks had to be increased.

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Japan's topographical features permitted more gradual curves than in Norway, perhaps explaining why the 3'6 gauge was chosen over other even narrower gauges. Edmund Morel (1841–71), a British engineer hired by the Japanese government, conferred with Inoue and it is likely that these two men agreed on 3'6.

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