The government has announced a half-million pound study to explore an Oxford to Cambridge Expressway, i.e. roadbuilding scheme.

Clearly, bringing more traffic into Cambridge (and Oxford) would have effects on cycling.

Meanwhile, the proposed 'brain train' link is still not fully-funded.

https://www.gov.uk/government/news/half-million-pound-study-to-explore-oxford-to-cambridge-expressway