The Transport Secretary, Patrick McLoughlin, is expected to defend HS2 rail link plans, highlighting the economic benefits at a speech in London today.
A Public Accounts Committee report on Monday said the Department for Transport had yet to present a convincing case for the project.
New analysis by KPMG shows that HS2 could boost the country's economy by £15bn per year and that the regions will be the biggest winners from the project.
The report, commissioned by HS2 Ltd, the company developing the new high speed rail link, also gives a breakdown of the economic benefits for each HS2 city region.
HS2 is expected to give the Birmingham city region economy a yearly boost equivalent to 2.1-4.2% of the city region's GDP.
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A dry day across the region with bright or sunny spells after a frosty start. However, cloud will tend to increase from the west by evening.
After a cold, bright and frosty start, skies will gradually turn cloudier through the afternoon. However, it will stay dry with light winds.
An engineer has been confirmed dead in the crash in Wales. The RAF say the pilot survived and is receiving treatment.