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Most UK voters would back Remain if the EU referendum were held again, analysis of the largest survey carried out on Brexit since the vote has showed.

Some 20,000 people were questioned in a Survation poll for Channel 4 which estimated 105 local authority areas that voted Leave in 2016 would now be carried by the Remain side.

The survey suggested that Remain would win a new poll by 54 per cent to 46 per cent.

Channel Four said a "multi-level" modelling technique, which successfully predicted the 2017 general election result, had been used in the exercise.

The results by Survation also indicated a significant change in the vote across the UK's local authority's, as illustrated in the Evening Standard's slider image below.

In a no deal scenario, a majority of voters would back staying in the EU, at least temporarily, according to the poll.

The survey found that in a no deal situation 35 per cent believe Britain should remain in the EU, while 19 per cent would want to delay leaving to allow more time for talks, and 36 per cent would wish to quit the bloc.

Asked how they would vote if the Government secured a deal and it was put to the people, 33 per cent said they would reject it, 26 per cent accept it, 34 per cent did not know, and 7 per cent indicated they would not vote.

Justice Secretary David Gauke told the Channel 4 programme that revealed the results: "If we leave on no deal terms there's is no good shying away, it will be very bad for us economically.

"If we can get a good deal, and that means removing all the frictions. The Chequers-type deal, as I say, if we don't have friction with trade, then, economically, I don't think it's going to make a particular big difference one way or the other."

Figures showed that 45 per cent of people thought Brexit would be good for immigration levels, while 24 per cent said it would be bad, and 31 per cent said it would make no difference.

And 42 per cent said immigration more generally has had a positive influence on Britain.

Former Ukip leader Nigel Farage said: "Funny isn't it? On the one hand we are being told Brexit has made people hostile towards migrants, on the other we are told we are more relaxed about it.

"You can't have it both ways. The truth of it is, the reason those figures have changed is a big chunk of the electorate think the immigration issue has been dealt with because we voted Brexit, and they think our major political parties will carry out their wishes.

"Actually, the penny's not yet dropped. That there is no intention for this Government or this opposition to deal with open door immigration."

The modelling technique showed that support for leaving the EU has fallen most dramatically in the local authority areas that saw the highest leave vote shares in 2016.

Some 43 per cent said they would support a second referendum that was a binary choice between a deal and staying in, with 37 per cent opposing a vote on those terms.

However, while it was backed by 63 per cent of people who voted Remain, it was backed by just 20 per cent of Leave voters.