Dear culture-war motorists, look to the future. We'll all be driving at 20mph soon | Christian Wolmar

There are howls of protest from the right about plans for Birmingham to be a 20mph city. But it will be a good thing, and others will followIf it can happen in Birmingham, it can happen anywhere. Moves by Birmingham city council to impose a 20mph speed limit on all roads, apart from a few major thor…