There aren't even many autonomous trains, although you would think this is the easiest to do. In Tokyo the Yurikamome started operating about 30 years ago (it i

There aren't even many autonomous trains, although you would think this is the easiest to do. In Tokyo the Yurikamome started operating about 30 years ago (it is fun to ride at night on the front seats when Odaiba is almost empty), and in Germany there are two autonomous subway lines in Nürnberg. I wonder why transition is taking so long, considering that the shortage of train drivers will become much worse very soon.