> Most train systems around the world are not automated All modern ones (in an urban/suburban context, which is what the post and thread are about; interurban

> Most train systems around the world are not automated All modern ones (in an urban/suburban context, which is what the post and thread are about; interurban is a bit more mixed, but every high speed line is highly automated too, because at those speeds there simply isn't the time for a human to react) are. > The real advantage of automation though is without a human driver it becomes cheap to run a lot of trains that are not very full And you can also have a very high frequency (60-90s intervals), which is impossible with manual operations. This increases capacity, on top of the convenience.