Will 20mph save us?

Deaths and serious injuries are up in 20mph zones but up even more in 30mph. Official commentators say the jury is still out on the value of 20mph zones. My view is that true road safety will never be achieved by numbers. We should drive according to context. Let us go at walking pace on busy streets, especially when children are around, and at our own chosen speed when conditions allow, e.g. on a clear motorway. In other words, let us use our own judgement, preferably informed by education, ability and experience. Story here.