I think it will be a very long time before driverless cars become anything more than experimental test-beds.
But what will appear much sooner what might be called 'aided driver' cars. For instance, using GPS, cars could be fitted with variable speed limiters that keep the car within the limit for any particular stretch of road. Also collision avoidance and anti-tailgating devices could be fitted. And if the worst should happen, data recorders linked to dashcams would be able to determine exactly what happened.
I saw an artice the other day about how one lorry manufacturer had developed self-driving technology that allows lorries to travel in close convoy, with only the front vehicle needing to be driven by the driver, while the other drivers just sit in their seats doing nothing.
Err.....we have a better system than this for moving freight already, it's called a railway!
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