This morning’s Observer column:
Somehow I think it’s going to take quite a while to get to self-driving nirvana. For one thing, autonomous vehicles require digital mapping that is an order of magnitude more detailed than anything in Google Streetview. Secondly, those maps need to be continually updated, because even an unexpected new mini-roundabout might confuse the vehicle and cause an accident.
But the biggest obstacle might come from what supposedly kept Harold Macmillan awake at nights – “events, dear boy, events”. Driving in Devon last weekend, I came on a number of temporary traffic lights at roadworks, and wondered how an autonomous vehicle would cope with them. After all, they would not appear on its digital map; and although it would be programmed to look for a red light in a standard position at a junction, it might not “see” a temporary one.
Devon is a ravishing county, but it has one quirk from the motorist’s point of view: it has lots of extremely narrow lanes, most of which have high hedges growing on either side. There are occasional passing places which allow two vehicles to edge past one another. This is fine until a procession of three or four vehicles meets another procession of several cars stuck behind a truck, at which point the only way to reach a solution involves a good deal of human-to-human negotiation. This is something that even the dumbest human is good at, but which will lie beyond the capability of even the smartest machine for some time to come…