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April 28, 2015 02:00 am

The Engineer's Lament -- Prioritizing Car Safety Issues

An anonymous reader writes: Malcolm Gladwell has an article in The New Yorker about how automotive engineers handle issues of safety. There have been tons of car-related recalls lately, and even before that, we'd often hear about how some piece of engineering on a car was leading to a bunch of deaths. Sometimes it was a mistake, and sometimes it was an intentional design. But we hear about these issues through the lens of sensationalized media and public outrage — the engineers working on these problems understand better that it's how you drive that gets you into trouble far more than what you drive. For example, the Ford Pinto became infamous for catching fire in crashes back in the 1970s. Gladwell says, "That's a rare event—it happens once in every hundred crashes. In 1975-76, 1.9 per cent of all cars on the road were Pintos, and Pintos were involved in 1.9 per cent of all fatal fires. Let's try again. About fifteen per cent of fatal fires resulted from rear collisions. If we look just at that subset of the subset, Schwartz shows, we finally see a pattern. Pintos were involved in 4.1 per cent of all rear-collision fire fatalities—which is to say that they may have been as safe as or safer than other cars in most respects but less safe in this one. ... You and I would feel safer in a car that met the 301 standard. But the engineer, whose aim is to maximize safety within a series of material constraints, cannot be distracted by how you and I feel."

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