In his column in today’s Guardian, Oliver Burkeman discusses “norm violations”, e.g. queue jumping. It helps explain why on the roads, equality and self-control are safer and more efficient than priority and signal control. As I often say, you’d cause a riot if you jumped a cashpoint queue, yet on the road, we accept such anti-social behaviour without question. Ben Hamilton-Baillie also speaks of the social protocols that ensure we are civil to each other when we’re in a public space designed for human interaction rather than a regulated space designed for control and movement of traffic.