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I suppose the car crowd would say environmental factors tilt toward cars over airplanes.

In the US, trains are for freight. It would cost too much to create a new passenger rail network compared to automating existing intercity roads.

Now, increasing the throughput of rail using self-driving trains could make a bundle in the US.



Self driving trains seems like an excellent problem space. Are you aware of any companies working on this?


Self driving trains already exist: https://en.wikipedia.org/wiki/Automatic_train_operation


Lots [1][2]. These have seen most deployment in closed networks (e.g. subways, or remote mining railways [3]), but experiments on "normal" interconnected networks are ongoing.

[1] https://en.wikipedia.org/wiki/Automatic_train_operation [2] https://en.wikipedia.org/wiki/List_of_automated_train_system... [3] https://www.railwaygazette.com/australasia/rio-tinto-complet...


Subway is already driver-less in a number of cities around the world. In others the drivers are still there but don't actually drive the train.




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