Lies, Damn Lies, Statistics and School Streets

Sadiq Khan, Mayor of London, has claimed in a tweet that “closing roads around schools to traffic at pick-up and drop-off times has reduced polluting nitrogen dioxide levels by up to 23%”. He has also issued a press release saying the same thing and giving more details – see below.

But the study on which this claim is based was only launched in September 2020 so the period covered is one where traffic was much reduced due to the pandemic and when schools were closed. It is hardly likely to be representative of the normal conditions.

The press release also claims that School Streets are popular with parents but those affected by the road closures who do not have children were not included in the survey. The Mayor even claims that “18% of parents are driving to school less during the pandemic, helping to clean up London’s air”. That’s surely hardly surprising as the schools have been closed!

This looks like a good example of selecting the statistics and the surveyed population that suit your argument while ignoring the bigger picture and the truth.

School Streets are allegedly so popular that Lewisham Council have introduced road closures on roads where there are no schools under the name of School Streets, simply to stop people driving through the Lee Green LTN area. The Council seems to think they can fool people into supporting the LTN by such dubious sophistry.

Mayor’s Press Release: https://www.london.gov.uk/press-releases/mayoral/school-streets-improve-air-quality

Twitter: https://twitter.com/Drivers_London

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