EVER SINCE ANTI-LOCK BRAKES STARTED TO PROLIFERATE IN THE 1980s, our cars and trucks have come with an increasing variety of advanced driver-assistance systems, or ADAS. A modern vehicle might have electronic stability control (ESC), forward-collision warning (FCW), automated emergency braking (AEB), various devices to help keep it in its lane, adaptive cruise control, and more. But do these systems contribute measurably to safety?
A little over 20 years ago, I wrote a column examining anti-lock-braking systems (ABS) and ESC. Each worked exactly as promised, and we were—and are—big fans of both. But did they improve safety? Good studies existed for the technologies, and to our shock, we found no evidence that ABS improved safety at all. ESC, on the other hand, was a blowout winner, reducing singlevehicle fatal crashes…
