Traffic calming in 1924. The “signalized obstruction” was a silent policeman. Protecting pedestrians 100 years ago.

When we fault a human user for being human, we are demanding that the human be superhuman. Then the failure is not human error. It’s species error. And because the species is a well known constant, species error is not the fault of the human user, but of the system’s designers.

September 13, 1899: Henry Bliss becomes the first American pedestrian to be killed by a motorist. Chris Klimek of Smithsonian Magazine observes the anniversary by reviewing the misunderstood “battle between pedestrians and drivers.” smithsonianmag.com/history/on-thi…

Today at 3 PM ET, American History TV will air the AHA's Congressional Briefing on the history of federal safety regulations in transportation. This briefing featured Dr. (deal with it) Janet Bednarek, Jeff Davis (Eno Center for Transportation), and Peter Norton and moderator Alexandra Levy (AHA). c-span.org/video/?535518-…