Why does WiFi on trains not work?

As the train zips along, its routers must keep up by hopping from tower to tower. A gap between sites can interrupt service. On stretches with underdeveloped infrastructure, such as rural areas, passengers will find themselves time-traveling to a pre-internet era.



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How the Internet of Trains Works. Essentially, many sensors are placed all over a train. These sensors monitor the train's engine temperature, whether doors are closed or open, rail vibrations, and more. Cameras are also placed on the outside of the train where image data is sent back to the system for interpretation.

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Digital tickets Scan them directly from your phone, or show to station staff to go straight to the platform. Even if you're making multiple trips, there's no need to walk around with a wad of paper tickets in your wallet – your phone is all you need. Once downloaded, you won't even need internet access to use them.

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The train acts as a faraday cage, and so blocks radio waves. The train is moving too fast for a clear signal to be received.

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In general, a signal booster will improve the strength of your Wi-Fi by up to 32x. However, it's important to highlight that signal boosters don't create signals on their own. Therefore, you will need to have a Wi-Fi hotspot from your smartphone or a dedicated router.

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With the advent of 5G, cellular technology has evolved to a point where truly digitalised rolling stock becomes possible. Up to 100x faster than its 4G predecessor, 5G will be critical to the success of real-time operations on-board trains. But, how does train-to-ground communication actually work?

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The main contenders are Omio, Rail Europe and Trainline. Those three are all legitimate companies, and established ticket resellers for European train tickets. (They're official partners of the European national train companies.) And they all put you on the same trains!

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As standard all coaches offer: Air-conditioning. Wi-Fi.

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Some locomotives collect electricity from overhead cables, while others take power from a third “live” rail on the track. It is very expensive to build the lines or rails that carry the electric current, but electric locomotives are cleaner, quieter, faster, and more reliable than steam or diesel engines.

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