In the past I’ve written that if the law is an ass, nowhere is it more asinine than in the traffic arena. But is it the law, or traffic managers’ interpretation of the law? There is no legal requirement, i.e. no law, that says we must have priority or signal control. Yet both are imposed at almost every junction in the land. “Inequality kills”, writes Tanya Gold in another context (social immobility) in today’s Guardian. Inequality kills on the road too, every day of every year. Not by chance, but by design – devised and imposed by Public Enemy No.1 – the traffic manager who fails to think outside the box marked “priority”.