Taxirail lightweight vehicle demonstrator with AI to start trials in 2021
https://www.railwaygazette.com/traction-and-rolling-stock/taxirail-lightweight-vehicle-demonstrator-with-ai-to-start-trials-in-2021/58003.article
Railway companies running in rural areas tend to operate "Trains with low frequency and long cars".
On the other hand, passengers want more frequent trains and are not interested in how many cars each train has. So, in order to make it compatible, there should be more and smaller trains. But, it causes another issue. That's "Lack of drivers". Therefore, AI train can be a breakthrough to solve this problem.