So, we arrive at Judgement Day for Sadiq Khan’s time as Mayor of London. And we’re being asked to judge him solely on whether we think the Ultra-Low Emissions Zone (ULEZ) is a successful policy intervention or not. His Conservative opponent, Susan Hall, certainly doesn’t think so and has promised to scrap the expanded ULEZ on her first day in office.
I’ve written before about how the Conservative party has weaponised ULEZ instead of seriously thinking about how government and Mayor can work together to achieve the intent behind this policy. Obviously that’s not going to happen but it’s still disappointing to have seen the Mayoral election reduced to a referendum on ULEZ.
Having crunched the data before it is only right to see whether we can gauge the success of ULEZ in terms of its impact on car ownership in London. Fortunately the Department for Transport have published an updated version of the veh9901 dataset (here’s the dataset I used for this post, captured in the Web Archive) that takes us through to September 2023.
And having looked at the data (which includes an 8 month lag don’t forget) it’s such a pity that we spend so much time listening to people having to defend or attack ULEZ rather than recognising ULEZ as a successful policy intervention because its achievements are significant, to the extent that I’m doubting my sums.
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