The number of NHS nurses on some wards is "wholly unsatisfactory" in "far too many cases", the head of the Royal College of Nurses has told ITV News.
However, Dr Peter Carter also warned that a new minimum standard of having eight patients for each nurse on duty would not solve staffing problems.
Dr Carter said that on some wards the ratio should be as low as one nurse per patient.
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It is hoped the 7,400-mile journey will become a cost-efficient and time-saving way of transporting trade between China and the UK.
The Prime Minister said Parliament will be given a binding vote on the final deal, but said the result will not stop Britain leaving the EU.
Officials from the train drivers' union Aslef will meet managers from Southern Railway, whilst the RMT will meet separately with Acas.