What technologies are currently used in trains?

  • Ultrasound looks for flaws inside tracks and ties: As a train travels over any track segment, energy is transmitted through the track and into the ground below. ...
  • Automated Track Inspection (ATI) systems use lasers and cameras mounted onto locomotives or railcars to inspect track as the train travels across the network.




Modern trains in 2026 utilize a suite of high-tech systems including Maglev (Magnetic Levitation) for ultra-high speeds in Japan and China, and Hydrogen Fuel Cells for eco-friendly regional travel in Europe. Most major networks now use ETCS (European Train Control System), a digital signaling technology that allows trains to safely run closer together, increasing capacity. Passengers in 2026 benefit from UV-C air disinfection and "smart glass" that tints automatically. Furthermore, "Predictive Maintenance" uses IoT sensors to detect mechanical wear before a failure occurs. In India, the Vande Bharat trains have introduced "KAVACH," an indigenous anti-collision system, while many global freight lines have transitioned to fully autonomous, driverless operations in restricted corridors.

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ATO systems refer to the technology which allows trains to operate with little to no human intervention. The systems use a combination of sensors, computers and communication platforms to control the speed, acceleration and braking of trains.

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Railways and electrical utilities use AC as opposed to DC for the same reason: to use transformers, which require AC, to produce higher voltages.

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Automatic Train Operators (ATOs) ATO systems refer to the technology which allows trains to operate with little to no human intervention. The systems use a combination of sensors, computers and communication platforms to control the speed, acceleration and braking of trains.

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Although commonly called diesels, the locomotives actually are electrically driven. The diesel engine drives an alternator, which produces electricity to run electric motors mounted on the locomotive's axles.

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Maglev trains — which use magnets to float carriages above the ground without the need for wheels — are currently the fastest form of rail travel in existence. The Shanghai maglev train (picture below), which connects Pudong Airport to a major metro terminal outside the city, is currently the fastest in the world.

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“Technology can make a significant difference as Train Operating Companies can better manage their infrastructure. Using cloud-based technologies such as smart phones, wearables and IoT sensors can have a huge impact on managing customer expectations, meeting KPIs and ensuring services are fit for purpose.

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1: Shanghai Maglev - 460 kph/286 mph (China) The world's fastest public train is also unique – it's the only link in the world currently carrying passengers using magnetic levitation (Maglev) rather than conventional steel wheels on steel rails.

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Freight and passenger rail rely almost exclusively on diesel power. The latest diesel innovations contribute to cleaner air and reaching climate goals. New battery electric and hydrogen options are under development.

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Did you know that Amtrak trains running along the Northeast and Keystone corridors are powered by an overhead wire system called a catenary system? The catenary system provides electrical power to these trains, allowing them to move quickly up and down the corridor.

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Transportation technology encompasses the tools, improvements and methods that move people, animals and goods across the globe. Transportation technology uses vehicles and infrastructure like railways and highways to support travel and covers movement via land, water, air and even space.

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Modern technology has significantly impacted the transport industry by introducing the use of drones and delivery robots. These innovative machines are changing how goods are transported and delivered, increasing efficiency and convenience.

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If China is the largest exporter of rail technology in the world, its neighbour Japan is certainly the most technologically advanced manufacturer on the market. Having launched the first class of bullet trains in 1964, the country has continuously updated its models according to the latest technological advancements.

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No modern train uses a diesel engine to power their wheels directly. They're used as generators to power electric motors. So the only difference boils down to where the electricity comes from. And even in the most train-friendly countries like France and Japan, huge sections of the network are not electrified.

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