Bam Nuttall has won a £190 million contract to create a new main line from London Marylebone station to Oxfordshire and the Midlands.
Chiltern Railways selected the contractor for the Evergreen 3 project to upgrade the main line between Banbury and London, upgrade the existing line between Bicester and Oxford, and create a link between the Chiltern line and the Bicester-to-Oxford line.
This includes the reconstruction of stations at Bicester Town and Islip, the addition of new platforms at Oxford and the creation of a station at Water Eaton Parkway.
The project will be delivered in stages, with the mainline journey time improvements being delivered from 2011.
The new line to Oxford, including Water Eaton Parkway, is expected to open by 2013, subject to Transport and Works Act approval.