59Doodledog
I mentioned a Tory council (although I'm sure you're right, GSM that housing developments are on the outskirts across the piece - where else can they go?) because it is the Tories who have brought in the 'green' schemes, and the Tories who are now seeing that they are unpopular and are turning against them, leaving Labour councillors to pick up the pieces.
Andy Burnham was forced to introduce ULEZ in Manchester because the government insisted on it, and a cynic might think that the fact that this would make him unpopular could have been a factor in Manchester being chosen. Newcastle has one too, and also has a Labour mayor
What made Andy Burnham unpopular (actually a hate figure here by a lot of people, me included) was like Khan he wanted to extend the ULEZ scheme to outer Manchester areas, some actually in the countryside