Which makes it of limited use.
Even if they were used in the first wave it was in the expectation that any hospitals sending patients there would also send staff to look after them, which was never realistic.
You can hire a hall and stick a bed in it, but if there’s no one to look after the sick person in it they don’t have much of a chance.
You can't build a hospital like that in a week, and there are no staff.
I've worked in Nightingale (London) and am on standby for Nightingale North West if needed. Luckily I didn't have to deal with any patients there and I hope we don't again.
For a large metro area like London, you might have some hospitals at high utilization because they're very close to other ICUs and can redirect incoming patients. It's not supposed to be at high utilization regionally, otherwise a single minor disaster can cause the system to tailspin.
Dunno why you're downing me but... The data is all here https://www.england.nhs.uk/statistics/statistical-work-areas...
5511 5861 6358 6733 6816 7034
So apparently increasing rapidly
[0]: https://www.england.nhs.uk/statistics/statistical-work-areas...