Road building needs reinventing
It’s no coincidence that a lot of trials of self-driving cars take place in modern cities such as Milton Keynes, which has well surfaced roads laid out on a grid system. Much of the rest of the world looks nothing like this. Leicester, just an hour up the M1, would be a much harder challenge, with higgledy-piggledy parking, intermittent cycle lanes and some hilariously overburdened roundabouts.
Roads themselves are still built in a way that would be recognisable to the Ancient Romans. They’re more or less okay for what’s currently being asked of them, but to unleash the full potential of the technology new roads should be brimming with sensors.