Although the Second World War saw the Oxford-Cambridge line handle unprecedented levels of traffic, it suffered from a lack of investment in the post-war years. The 1955 Modernisation Plan proposed improvements to the line, believing it could be a strategic cross-country route for freight across three British Railways regions without having to pass through London. The policy was however to change within a few years, leaving the Bletchley Flyover as a testament of the change of course. The first attempt to close the line came in 1959, but was unsuccessful in the face of local opposition. Hopes for the line thereafter rose when it did not figure in the Beeching Report, but it was nevertheless proposed for closure in 1964, with the Oxford — Bletchley and Bedford — Cambridge routes closing after the last day of service on 30 December 1967.