Q: I appreciate your appeal to people to improve safe driving behaviors but the framing about human error implied that it is the sole reason for traffic fatalities. Was that your intention? If so, this doesn’t fit with what I am hearing from the NTSB, USDOT, or WSDOT about the Safe System Approach. What about the responsibility of road designers and builders, vehicle manufacturers, and emergency responders?
A: I’m certain this question was prompted by the comment I made a few weeks ago about how driver error is a factor in 94 percent of fatal crashes. While true, it doesn’t tell the whole story. (Also, given how prone we are to mistakes, I’m surprised that even six percent of crashes don’t involve human error.) Fatal crashes are rarely attributable to a single factor. The crash itself might be caused by driver error, but the outcome depends on multiple circumstances, including road design, the safety features of the vehicle, and how quickly the ambulance shows up.
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