Former TVR owner Peter Wheeler used to explain the lack of airbags in his firm’s high-powered sportscars by arguing drivers would be safer if he installed a metal spike in the middle of each steering wheel. That was back in the late 1990s and early 2000s… since then, the rise of adaptive cruise control, “attention assist” systems, collision-sensing brake pre-loading and more have only made his critique all the more provocative. And, according to research cited in a Wired Magazine report, Wheeler’s philosophy seems to have a strong basis in science.
“The point the automakers are making, which is true, is that they go to extreme lengths to make these systems work and extremely reliable,” [Stanford University's Clifford] Nass said. “The reliability on these systems is very high. If you have automatic cruise control, it’s not extremely often you have to jump into the fray.”
Therein lies the problem. We come to count on our cars to keep us out of trouble, even in situations where the technology isn’t designed to.
“Road hazards other than the car in front of you are so rare, especially on the highway where these adaptive cruise control systems would be in play, that they would, over time, encourage a complacency that undermines safety,” said Erik Blaser, a psychology professor at the University of Massachusetts, Boston, who studies vision and perception. “You stop paying attention to the driving.”
Though these “semiautonomous” systems are sold as safety equipment, researchers argue that they create a sense of reliance that actually makes drivers less safe (unlike “secret” safety systems like stability control and ABS, which operate consistently without the driver’s knowledge). And, somewhat counterintuitively, these researchers argue that the rise of semiautonomous driver aids actually increases the need for life-long driver eduation.
The report notes:
“The functionality of the technology is very good at this point, but how do you teach people how to use it appropriately?” MIT AgeLab and New England University Transportation Center researcher Bryan]Reimer said. “Reading the owner’s manual is not going to provide the information that you need.”
Instead, he suggests ongoing, lifetime driver training and an end to the American tradition of driver’s education only for new drivers. Auto dealerships should spend more time working with customers to fully explain the limits of automotive safety technology before letting them drive home. Looking further ahead of the curve, cars could one day actively detect drivers’ states — whether they’re tired or distracted, for instance — and allow the use of semiautonomous safety technologies when appropriate.
The limitations of active safety systems must be second nature to drivers, said Nass. Drivers must know what the technology can and can’t do so they don’t rely upon it in situations where it won’t work.
“It’s always a problem with partially autonomous systems,” he said. “You’ll always have the issue of remembering what it does and what it doesn’t do, and in real time we don’t want people pondering that.”