MyLondon has an excellent write-up of the submission from the city’s mayor, Sadiq Khan, to the Commons Transport Committee on the subject of Heathrow expansion, which argues that the additional flights – and traffic – risk wiping out the progress that Khan has made to improve air quality.
The government’s case to move forward with expanding Heathrow Airport has not been “sufficiently made” and heavily relies on outdated evidence from 2015, the Mayor of London has said.
The Department for Transport published the Heathrow Expansion National Policy Statement (HENPS) in June to “provide the basis for decision making on any development consent application” for a new runway.
But City Hall has said that there is a “significant gap between the strategic narrative and the evidence presented”, adding: “Many of the benefits underpinning the government’s argument are uncertain, only partially quantified, outside the core appraisal framework, or require complementary policies beyond airport expansion which are not assessed.”

That gap between narrative and evidence is very much the DfT’s stock in trade, but Khan also argues that ministers plan to take advantage of environmental improvements unrelated to airport expansion, i.e. to capitalise on the “headroom” created through policies such as the Ultra Low Emission Zone (ULEZ).
Meanwhile, research continues to show what a great success the ULEZ has been.
MyLondon also notes:
(more…)

