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[quote] Mercedes is advertising technology that will recognize if a person steps in front of your car and stop the car before you could even react. That kind of technology would work well on a train without an engineer. [quote] There's a world of difference between cars and trains. A car can start and stop readily, but a train needs miles to come to a complete stop, that's where the human judgement comes in. The train would have to distinguish between cars passing over a level crossing and cars that are stuck on a level crossing, and decide in time to stop the train in time. SkyTrain is driverless, but it's tracks are also all secure, being under ground, above ground or fenced in. The Railroads in the United States and Canada have many level crossings and open areas to the public; because of all the open areas there are many more judgement calls required because of people or cars crossing the tracks. Driver less? Can't see why not with the way technology is going, it's bound to be a good few decades away though.
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