As Easy As Riding A Bike)
In the summer of last year, Professor Robert Winston made this claim –
He has a moustache. And is a professor. He must know what he is talking about.
Despite repeated requests, Professor Winston has consistently failed to provide any evidence that new cycling infrastructure in London – which amounts to only a small reallocation of road space on some 12 miles of roads in the entirety of London – has been been responsible for such a pollution increase, or to provide any kind of causal connection whatsoever. His comment has been retweeted 424 times, and doubtless has been linked to many more, including this endorsement from the Street Policy Officer of London Travelwatch.
If we look at streets where cycling infrastructure has been built, there is no distinguishable pattern of increase in pollutants following completion in May 2016.
PM10 monitoring on Upper Thames Street, for the last three years. Graph produced via the LondonAir website.
There are fluctuations, but nothing out of the ordinary – the spike in January 2017 corresponds approximately to a spike in January 2015, long before construction had even started, and matches a period of London-wide air pollution that (oddly enough) affected London boroughs where there is no cycling infrastructure at all, including Kensington and Chelsea.
I’m sure ‘the eminent professor’ wasn’t the first person to make these kinds of outlandish claims, but as the Professor of Science and Society at Imperial College, he may well have been the first one to give them some serious credibility. Claiming that ‘cycling infrastructure causes pollution’ – something that had once been met with derision – has now passed into mainstream debate, coinciding (entirely unsurprisingly) with the first genuinely significant reallocation of road space for cycling, anywhere in the UK.