Bondholder Bombardier has unveiled a £12.5million Crossrail testing and commissioning facility to check Derby-made trains designed for the Crossrail line in London.
Crossrail is Europe's largest construction project and Bombardier will be hiring more staff as the £1billion project moves into the production phase.
The 10,400 square metre building was built by Balfour Beatty and includes four "multi-functional" train lines, each with full-length overhead lines, that connect into the site's existing test track facilities. It has also created office space in the form of a two-storey annex with room for up to 90 staff.
The site was opened by transport minister Patrick McLoughlin, who commented: "Bombardier has witnessed some difficult times - but now it can look to the future with positivity. The opening of this building is a historic moment for Bombardier, Derby and the U.K. Rail industry as a whole."