High-Speed Rail
High-speed rail is the fastest way to travel between major cities. Some high-speed trains such as the Shinkansen (bullet train) in Japan and TGV in France are capable of reaching speeds of up to 320 kilometres per hour. It meets the increasing demand for faster and better travel from A to B and around urban areas, reducing congestion and improving mobility. At such speeds, these kinds of trains offer a competitor to air travel, whilst being around eight times more energy-efficient, according to the International Association of Railways (UIC).
High-speed trains are only currently in operation in 16 countries around the globe. Most countries have dedicated tracks and routes for high-speed rail, however they can also operate on conventional tracks at reduced speeds. Roof-mounted pantographs and overhead supply lines generate the power to drive the trains, which often have two synchronised engines at either side.
Maglev, short for magnetic levitation, refers to trains which levitate around 10 cm above the ground. Unlike traditional rail technology, maglev trains don’t have wheels and instead use electromagnetic forces to lift the train above the tracks. The magnets used for maglev trains are superconducting, meaning that when they’re cooled to -450℉, they’re able to generate magnetic fields ten times stronger than regular electromagnets, which allows them to lift and drive the train forward. This means that there isn’t any friction involved with these types of trains, allowing it to travel at incredible speeds. In fact, the fastest a maglev train has travelled is 603 km/h.
But it’s not just the high speeds which makes maglev trains so appealing. The use of electronic propulsions systems reduces the use of fossil fuels for power and limits emissions. With the absence of friction on the tracks, maglev trains generally require less energy to maintain speed, and the regenerative braking system reuses energy that would be lost in conventional trains. Without the need for contact, it also means that less maintenance work needs to be carried out on the guideway and trains as the risk of wear and tear of components is significantly decreased.