“We need a new signal called blue phase, meaning you should follow the vehicle in front of you,” says civil engineer and traffic control researcher Ali Hajbabaie.

Yeah, a bunch of cars that all follow each other, with signals set up so they don't have to stop! Imagine if you could get on a roadway in one place and go straight through to the next pla... Wait this is a train.

Why do these carbrains keep re-inventing trains, but shittier?