It is hard to imagine a more contentious idea. In a bid to reduce journey times between Sheffield and Manchester by a few minutes, the government recently committed public money to the case for building the longest road tunnel in the world.
It said less than a third of Londoners would oppose such a policy. The survey, carried out by YouGov, also indicated that more than two thirds of Londoners think higher polluting vehicles should pay more than other vehicles travelling through London.