Self driving cars are coming and they are good.
Safety is an obvious benefit. Some people I have talked to about this talk about overcoming fear to get into a self-driving car. But over a million people per year are killed on the road. It is clearly technically possible to make a car very safe: if some safety problem emerges with the driving software, a fix can be made and the update sent to all cars at once. You can’t do that with people, who make the same mistakes over and over again. Furthermore I don’t anticipate anyone marketing a self-driving car until it is orders of magnitude safer than a human because in the case of an accident the reputational damage to the developer would be so high. I expect self-driving car accidents to be reported in the press even more vigorously than exploding batteries in cellphones are today. And cases of exploding batteries, even in the case of the infamous Samsung Note 7, are vanishingly rare. If car accidents were anywhere near as rare as that we would already be living in a much better world. And that’s just safety.
I think self-driving cars have the capability to completely change the landscape. Charlie Stross talks about what a time traveller from thirty years ago would notice when they visited. Such a traveller might notice different fashions but the urban landscape would be very much the same. To paraphrase Charlie, the most obvious difference would be that people are walking around staring into glowing bits of glass as if they were windows onto the sum-total of human knowledge.
Thirty years from now things could look very different indeed.
No-one will own their own cars any more — at least not as a matter of course. When the only advantage of owning one’s own car is the ability to store one’s own junk in it, it simply won’t be worth the cost. It is already possible to do some short commutes by Uber for a few thousand pounds per year, rivalling private car ownership. A company could operate a fleet of self-driving cars on a very similar model and make big savings on scale. So for any given journey you just tap your destination and select what kind of vehicle you would like, and it would roll up to your door in a few minutes. No paperwork, no maintenance, no re-fuelling, no keeping a big car for the occasional times you need it, and no difficulty moving a large object because hiring a specialist vehicle is equally straightforward.
For that matter, cars can be far more specialised because they don’t need to look like cars any more. No-one has to sit in the driver’s seat looking out and it won’t crash so you don’t have to wear seat-belts. If you need to do some work on the way to your destination, hire an office on wheels. If you want to travel by night, hire a hotel room on wheels. Some journeys don’t need to be made by people at all: to drop off a parcel, hire a self-driving locker. Forget drone deliveries, Amazon will use self-driving delivery vehicles.
There is no longer any need for car parks or cars parked along residential streets. Our time traveller will wonder where all the cars have gone: children will be playing in the streets once more and houses will have gardens where once there were driveways.
I am not sure how busy the roads will look. Automated cars can travel close together and co-ordinate with each other so there will be no traffic lights and no traffic jams. Multi-lane highways will be unnecessary. But as travelling is easier and cheaper people will do it more. People will live further from their place of work because journey times will be shorter and consistent. No more leaving half an hour earlier *in case* of a traffic jam. You will know exactly how long it will take every single day. If people put up with two hour commutes today, there is no reason to think they won’t in future. But that two hours will reliably get them a lot further. So it will be easier to change jobs because a given house will be in range of more jobs, and it will be easy to have offices in different locations because a given office will be in range of more houses. There will still be advantages to working close together, and people often don’t like *living* close together, so perhaps people will continue to work in cities but live in them less.
Towns and cities will look different because much of the land used for roads can be reclaimed for other uses. There is no need for giant roundabouts or other large, complicated junctions that are used today to improve traffic flow. In many cases even roads with two lanes can be converted to narrow, single lanes because bi-directional traffic can pass at specific points. We can finally get rid of the temporary Hogarth Roundabout flyover.
Cars will probably be mostly electric because they can drive off and recharge themselves. I suspect they will travel very fast on highways because there is no safety disadvantage and people will demand shorter journey times.
Today, old people can find themselves immobile. Children have to scrounge lifts. With self-driving cars, anyone can go anywhere. You can send your children to a better school in the next town instead of nearly bankrupting yourself moving into the catchment area.
There are likely to be problems along the way. My vision so far relies somewhat on all vehicles on the road being automated. I think there will be a short time during which automated vehicles will have to co-exist with human-driven ones, but the advantages will be so huge and so immediately apparent that people will switch to exclusively using automated cars faster than they adopted smartphones.
I am not sure how well things will work out for people living in remote areas. Right now I can get an Uber in three minutes. This is because of the population density where I am. People in the sticks will have to wait longer for a ride and costs will be higher. But, then again, population distribution and economics are likely to change.
Some people enjoy driving, or riding motorcycles. Those things can be done on the track. You’ll have to hire a self-driving car to tow your Ferrari or your Ducati to the track.
There will be technical difficulties making the first car that can completely self-drive on any road. There are software, infrastructure and mapping problems to solve. If there were no human driven cars the problem would be easier, but I think there will be a few years when human and automatic cars will have to co-exist. Only a few years: but it is still a hurdle. However, there are people who are working on it and they think it is possible and they are making progress. There is no reason to think it is impossible. And the benefits are so huge and so universal that it is hard to imagine any amount of human effort into this problem that won’t quickly be paid back. We won’t be able to predict the moment of success but when it comes, change will be fast.
There may be computer security challenges, but in an intelligence race between bad guys and good guys I have some confidence that the good guys will ultimately win. Failures here will be as embarrassing as car crashes or exploding batteries to manufacturers.
The government will regulate where you can go and track your every move. This is a problem anyway: self-driving cars don’t fundamentally change it. And people always choose convenience over freedom and privacy so it is going to happen anyway.
How many man-hours are wasted sitting in control of a vehicle or being stuck in traffic? Further economic growth will come from the time and effort freed up. Self-driving cars are coming, and they are good.
