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Rail transport

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Rail transport is a primary method of land transportation used globally. It involves wheeled vehicles that travel on tracks, which usually consist of two parallel steel rails.

Alaska Railroad oil train at Nenna
Alaska Railroad oil train at Nenna

This system handles approximately 8% of all passenger and freight transport worldwide.

World railway network
World railway network

Rail transport is highly valued for its energy efficiency and its ability to achieve high speeds. One major advantage is that the tracks spread the weight of the train. This allows rail systems to carry much larger loads than trucks on roads.

Wagons 550
Wagons 550

Additionally, rolling stock on rails encounters lower frictional resistance than rubber-tyred vehicles. This allows many rail cars to be coupled into very long trains.

The mechanism of rail transport relies on the interaction between wheels and tracks. Power is usually provided by locomotives, which are the heavy engines at the front. Most modern locomotives run on diesel or electricity.

Ganz engine Valtellina
Ganz engine Valtellina

In early systems, power came from human or animal strength. Some used a funicular system, where a rope pulled cars up or down a slope.

Berlin Technikmuseum Holzbahn
Berlin Technikmuseum Holzbahn

As technology improved, the steam locomotive became the standard power source. This machine uses steam to create movement.

TrevithicksEngine
TrevithicksEngine

In the 1880s, electrification began with tramways and rapid transit systems.

First electric tram- Siemens 1881 in Lichterfelde
First electric tram- Siemens 1881 in Lichterfelde

Today, high-speed electric trains can travel between cities very quickly.

Rail technology has evolved through several distinct stages of materials. Early systems used wooden rails, often hauled by horses to move ore in mines. Later, engineers added cast iron plates to wooden rails to create plateways. These used L-shaped metal plates that unflanged wheels ran upon. Eventually, the flanged wheel and smooth edge-rail became the standard.

Cromford and High Peak Railway cast-iron fishbelly rail
Cromford and High Peak Railway cast-iron fishbelly rail

Engineers moved from cast iron to wrought iron because cast iron was too brittle. Wrought iron was a ductile material, meaning it could bend without breaking. Finally, the Bessemer process allowed for the inexpensive production of steel. Steel rails lasted much longer than iron and supported much heavier locomotives.

The history of rail transport stretches from antiquity to the modern era. In Greece, the Diolkos was a paved trackway used to move boats around 600 BC. Modern rail transport began in the United Kingdom during the early 19th century. The steam locomotive was a key invention during this time. The Stockton and Darlington Railway opened for passengers in 1825. Following the 1830 opening of the first intercity connection in England, railways spread quickly through Europe and North America. This expansion was a vital part of the Industrial Revolution.

Railways have had a massive impact on the economy and geography of nations. In the United States, the first transcontinental railroad changed everything. It allowed passengers and freight to cross the country in days rather than months. The cost was only one tenth of what a stagecoach or wagon trip cost. This made farming, ranching, and mining profitable in the American West. Because the West had few navigable rivers, the railroad was essential for growth. The ability to move goods cheaply helped create "national markets" where prices stayed similar across different cities.

Notable examples of rail evolution include the development of high-speed systems. Japan introduced the first high-speed railway system in 1964.

Since then, high-speed lines have connected many cities in Europe, East Asia, and the eastern United States.

Shenzhen Guangzhou high speed train new rolling stock China (37116926035)
Shenzhen Guangzhou high speed train new rolling stock China (37116926035)

Another example is the use of rail in urban environments, such as the London Underground or various metro systems.

Baker Street Waterloo Railway platform March 1906
Baker Street Waterloo Railway platform March 1906

These systems provide efficient movement for large numbers of people in crowded cities.

Today, rail transport is experiencing a significant revival. For a time, it declined due to competition from cars and aeroplanes. However, rising fuel prices and road congestion have made rail attractive again. Governments are also investing in rail to help reduce CO2 emissions.

Limousin2010RVT01
Limousin2010RVT01

By using efficient electric or diesel engines, rail transport connects to broader goals of environmental sustainability. It remains a critical part of how the world moves people and goods across the planet.

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🖼️ Images & Media (25)
File:Alaska Railroad oil train at Nenna.jpg
Alaska Railroad oil train at Nenna.jpg
File:Berlin_Technikmuseum_Holzbahn.jpg
Berlin_Technikmuseum_Holzbahn.jpg
File:Little Eaton Tramway Replica Wagon small.jpg
Little Eaton Tramway Replica Wagon small.jpg
File:Cromford and High Peak Railway cast-iron fishbelly rail.png
Cromford and High Peak Railway cast-iron...
File:TrevithicksEngine.jpg
TrevithicksEngine.jpg
File:First electric tram- Siemens 1881 in Lichterfelde.jpg
First electric tram- Siemens 1881 in...
File:СПб. Открытие трамв.движения по 4 марш.17(29)IX1907 t773597.jpg
СПб. Открытие трамв.движения по 4...
File:Baker Street Waterloo Railway platform March 1906.png
Baker Street Waterloo Railway platform...
File:Ganz engine Valtellina.jpg
Ganz engine Valtellina.jpg
File:Limousin2010RVT01.jpg
Limousin2010RVT01.jpg
File:Shinkansen Series0 R67 JNRcolor.jpg
Shinkansen Series0 R67 JNRcolor.jpg
File:Trains in Napoli Centrale-Garibaldi 18 55 44 221000.jpeg
Trains in Napoli Centrale-Garibaldi 18 55...

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