Wes Marshall is a traffic engineer and author. His new book - Killed by a Traffic Engineer: Shattering the Delusion that Science Underlies Our Transportation System - is a fascinating exploration of why we continue to engineer roads that are literally killing its drivers via an industry focussed only on how to get from point A to B in the fastest way time. And - crucially - what to do about it. 

This episode is sponsored by MAV Systems.