Centralised discussion space for TfL plans and cycling in London

I thought a major complaint of Westminster towards Khan's plans was that Oxford Street is a thoroughfare and they didn't want to it cut.

Yes, but even Westminster can't ignore the forecasts of how many pedestrians are meant to arrive at Oxford Circus via Crossrail. There's a public safety issue if they don't have enough space to spill out into. Keeping the pedestrian space the same could lead to people being crushed. I expect that at extremely busy times, people may occasionally even be prevented from getting off Crossrail there for a few trains until there's enough clear space again. As I speculated above, those forecasts may not come true entirely, but we'll see when it happens.

I'm half joking when I say that Westminster plan this only to interfere with cycling through the area, the pedestrian benefits are just an unintended consequence.

Well, what is clear is that cycling through that stretch will be much slower than before. Right now, we don't know yet if cycling will be banned there. I think it's a distinct possibility, but let's wait until we get the information.

To be honest, I think that Westminster are probably trying to do the minimum here that they have to. As above, I think Crossrail's a mistake, but I have no idea to what, if any, extent it's Westminster's fault. Livingstone was the main driver, and to everyone's surprise he wrangled the funding out of Gordon Brown.