Queuing Theory 101: you can either optimize for usage or for availability, not for both at the same time.
Investing in availability costs, and the UK has been brutally cutting NHS funding in the past years or even decades.
Another aspect is that health care in Germany is much more decentralized, and so local hospitals have to absorb spikes in demand more by themselves, distributing patients to other facilities is only done in very rare cases (usually when specialist treatment is necessary). You cannot operate at > 80% utilization and still be able to absorb spikes in demand.
Investing in availability costs, and the UK has been brutally cutting NHS funding in the past years or even decades.
Another aspect is that health care in Germany is much more decentralized, and so local hospitals have to absorb spikes in demand more by themselves, distributing patients to other facilities is only done in very rare cases (usually when specialist treatment is necessary). You cannot operate at > 80% utilization and still be able to absorb spikes in demand.