Opponents of LTNs claim they delay emergency services – but look at the facts

One thing is clear: there is virtually no evidence that low-traffic neighbourhood schemes hold up emergency vehicles

If you were to read certain newspapers for long enough, the message would seem clear: the main cause of traffic congestion is measures to boost walking and cycling - that is, separated cycle lanes, and so-called low-traffic neighbourhoods, or LTNs.

LTNs, schemes to dissuade through traffic on smaller residential streets by filters permeable to people travelling by foot or cycle, but not by private motor vehicle - whether camera-enforced or in the physical form of planters or bollards - are at the centre of a particularly fierce transport-based culture war.