The construction of the HS2 rail project will affect the lives of more than half a million people across Middle England, campaigners have said, including those living up to 25 miles from the controversial train route.
They say towns along a 40 mile wide corridor through Oxfordshire, Buckinghamshire and Warwickshire will be affected by the millions of extra lorry journeys during the building process.
The estimations by the Campaign for the Protection of Rural England (CPRE) come from analysis of information it requested from the HS2 project.
Campaigner Ralph Smyth condemned HS2 for its reluctance to hand over the information, saying: "It is not acceptable that it took a charity to uncover this."
"All construction access routes" have been considered as part of plans for the HS2 rail route, a project spokesman has told the Mail on Sunday, in response to campaigners' claims of widespread disruption.
He said the public had been consulted on the matter and offered the chance to "express potential concerns or suggest alternatives" and would continue to be involved.
We have sought to provide construction access with minimal disruption and will continue to work with local communities to take on board their views.
In developing the subsequent formal Environmental Statement, we will be considering how we can further reduce any adverse impacts.
The estimated cost of building the controversial High Speed 2 rail network, which will travel through parts of Buckinghamshire and Northamptonshire has doubled to at least £80 billion, The Sunday Telegraph has reported.
A 58-page independent report by the Institute of Economic Affairs, due out tomorrow, will say that the spiralling cost of construction means HS2 now "defies economic logic" and should be cancelled.
The institute's report also apparently claims the £80 billion cost of HS2 could create "£320 billion of economic value" if it were invested in road, rail or other transport projects instead.