Photo courtesy of the Nevada
Department of Motor Vehicles
Okay, I don't really think that.
But I do think they deserve more than a knee-jerk, negative reaction (see discussion here and here). Pedestrians (and planners, for that matter) tend to think of the car as their natural enemy, and it's true the car causes a lot of problems--for everyone, not just those who travel on foot. Does that mean we should reject any change in the technology that might continue to perpetuate an auto-centric world? Let's consider the costs of cars and private vehicle travel, and see what robo-cars might do to change them.
1. Public Health
According to CDC data about 30,000 Americans are killed in traffic crashes each year, at a cost of $41 billion. If that sounds discouraging, consider that over 90 percent of traffic deaths and injuries take place outside the US, killing 1.3 million people annually and injuring another 20 to 50 million. I probably don't have to tell you that pedestrians are disproportionately represented in those deaths and injuries, right?
Driverless cars might not eliminate this problem entirely (the laws of physics still apply if someone darts in front of a car), but they have the potential to seriously decrease deaths and injuries from crashes. Imagine no more distracted driving, drunk driving, speeding, red-light running--or people cutting you off on the freeway. For me, this alone is reason enough to support further investigation into driverless technology.
There are other health consequences from driving, of course. Air pollution from vehicles contributes to high asthma and cancer rates, particularly in neighborhoods near freeways. Driverless cars may have a small impact on this by reducing congestion, but the real benefits from pollution reduction will come from other technologies. And by making it easier to drive, robo-cars might contribute to the ongoing obesity problem in our country (and elsewhere). We shouldn't ignore their potential to create a new kind of lazy (car-potato?), but I'm not convinced the obesity epidemic, with its myriad causes and solutions, is reason enough to reject robo-cars outright.
2. Congestion
Congestion costs Americans over $100 billion per year (not including associated health costs). As transportation experts have said for years, the best solution is well within our reach -- if only we could find the political will to implement it. Until then we hunt for the second-best options, and driverless cars are one of them. They would remove most of the delays caused by crashes, and allow vehicles to travel faster and more smoothly.
However, let's be clear: driverless cars would not solve the fundamental problem of congestion (namely, lots of people trying to get the same place at the same time on the same route). They have the potential to ease congestion by improving roadway efficiency, but they won't eliminate it entirely.
