The lack of science in the design of the roads is fatal

If you saw a car crashing on the side of the road, you could look at it and think that the person in fault is the driver. But how many blame should be shared by the people who designed these roads in the first place?

Well, some traffic engineers call for the field to accept more blame for accidents and Tens of thousands of annual deaths This happens on our roads, including Dr. Wes Marshall, professor of civil engineering at the University of Colorado Denver. In his book Killed by a traffic engineer: breaking the illusion that science underpins our transport systemHe digs in the standards that dictate the design of traffic for decades to find out exactly how many sciences they are based. Spoiler alert: It’s much less than you think.

The host Flora Lichtman sits with Dr. Marshall to talk about how we got to this point and what a safer version of our streets could look like.

Read an extract of Killed by a traffic engineer.