Oxford–Cambridge Expressway
The Oxford to Cambridge Expressway was a proposed grade-separated dual carriageway between the A34 near Oxford and the A14 near Cambridge, via (or near) Milton Keynes. The road would have provided an outer orbital route around London, as well as connecting major growth areas in the region.
In March 2020, the Department for Transport announced that the proposal was being "paused" indefinitely, and the road was cancelled by Transport Secretary Grant Shapps in March 2021, as analysis showed that its costs would exceed its benefits.