Question to the Department for Transport:

To ask Her Majesty's Government whether a cost-benefit analysis has been carried out for the planned Oxford to Cambridge expressway; and if so, what were the results of that analysis.

The Government published a strategic outline business case for the construction of the ‘missing link’ between Oxford and Milton Keynes in September 2018 (available on the Department for Transport website). This showed a benefit cost ratio of 1.2 or 1.3 for the preferred corridor B.

Highways England is in the process of identifying potential routes within the preferred corridor which will enable a more thorough assessment of benefits and costs.