#FietsProfessor says the past 100yrs of #trafficEngineering seems like it was set in stone. The language we use shapes the way people think, "traffic jam / clog" is the language of sewage. And "closing streets" to cars creates #openStreets for children. Also most people find #transportation boring but #freeRangeKids, #SchoolStreets, #BikeBus capture more attention. Make #trafficEngineers argue against the idea of #AutonomousChildren not #Cyclists. @TheWarOnCars