Khan mentioned it will take longer to get from Birmingham to central London on the high-speed rail hyperlink than present trains if plans for it to terminate at Euston station are deserted.
He additionally mentioned that hypothesis the Birmingham-Manchester leg of the route might be axed can also be “deeply worrying”.
Sunak has refused to ensure that the trains will run to Manchester, the place the Tory convention is being held in October, and he might additionally look to make financial savings within the capital.
Greater than 80 corporations and enterprise leaders are looking for readability over the dedication to HS2, the price of that are mentioned to be “uncontrolled”.
A Whitehall supply informed the Sunday Telegraph: “There’s a reluctance to throw good cash after dangerous.”
Higher price range estimates of the preliminary London to Birmingham stretch have elevated by a fifth – or greater than £8bn – from the £45bn determine revealed in June final 12 months and are heading in the right direction to wipe out different transport tasks, the newspaper mentioned.
Former Prime Minister Boris Johnson has urged the federal government in opposition to constructing a “mutilated” model and mentioned solutions building began beneath his premiership might be scaled again have been “Treasury-driven nonsense”.
Ex-PM David Cameron has additionally privately raised important considerations concerning the prospect that the high-speed rail line might be closely altered, in accordance with The Instances.
In a letter to the Prime Minister, the Labour mayor mentioned: “The Authorities’s method to HS2 dangers squandering the large financial alternative that it presents and turning it as an alternative right into a colossal waste of public cash.”
When the railway first opens between London and Birmingham, anticipated between 2029 and 2033, its terminus within the capital might be Previous Oak Frequent, within the western suburbs.
HS2 trains should not anticipated to run to Euston till 2041 on the earliest and, with ministers involved about the price of the venture, there are doubts the scheme will ever go forward.
Khan mentioned: “Terminating the service at Previous Oak Frequent could be a short-sighted resolution which can have long run implications, considerably downgrading the worth of HS2 as a high-speed connection and leaving a ridiculous state of affairs the place a ‘excessive velocity’ journey between Birmingham and central London might take so long as the prevailing route, if not longer.”
He mentioned the “finest case” journey time of 1 hour and 22 minutes from Birmingham to Euston, altering at Previous Oak Frequent onto the Elizabeth Line and Northern Line, was “already one minute longer than the prevailing practice time”.
Khan informed the Prime Minister: “The general public would rightly be dismayed have been all of this money and time spent on a line that took longer to achieve central London than the prevailing route, and was devoid of any correct connections to the north of England.”
A Authorities spokesman mentioned: “The HS2 venture is already properly beneath means with spades within the floor, and our focus stays on delivering it.”