Preparatory work starts tomorrow, Friday, towards the reopening of a disused railway line.
Funding was announced in 2012 for the East West Rail project, re-establishing the railway line between Bedford and Oxford, Milton Keynes and Aylesbury.
The scheme includes a new station at Winslow.
Ground investigation and sturctural surveys will be undertaken along the route that has no running trains, between Bletchley and Steeple Claydon .
Work starts on Friday for 20 weeks. It will be carried out from 7.30am to 4.30pm but some weekend working may be required.
Bore holes will be drilled and bridges, under-bridges and culverts will be surveyed.
A temporary site compound is being set up at Verney Junction, with offices and a generator, where large machinery will be stored.
Residents living near the railway line have this week received a letter from Network Rail about the impending work due be carried out by its contractor, Barn Ritchie.