An exhibition showing detailed plans for the proposed high speed rail link from London to Manchester opens today.
HS2 will link the cities in the second phase of the scheme which is due to open in 21 years time.
The HS2 Growth Taskforce will be in Manchester as part of a series of roadshows designed to ensure regions maximise the benefits of high speed rail.
The Taxpayers' Alliance says more coaches should be way forward rather than the HS2 rail link, which would speed up journeys between London and the North.
Matthew Sinclair, Chief Executive of the TaxPayers' Alliance, said:
"As the projected costs have increased dramatically, the already fragile case for HS2 has completely disintegrated.
"There are far cheaper and better ways of substantially increasing capacity much more quickly on the route, not least by reducing the number of first class carriages and lengthening the trains."
Business leaders from the North West have joined a panel set up by the government to look into the impact of the proposed High Speed 2 rail project.
The government believes HS2, which is expected to slash journey times between London and the north west, will create thousands of jobs.
However campaigners have protested about the lasting effect the proposed line will have on the enviroment.
Lord Deighton ,Commercial Secretary to the Treasury
Former business secretary Lord Mandelson has urged Labour and the Government to think again about the controversial HS2 rail link, intended to speed up journeys between London and the North, saying it could be "an expensive mistake".