A contraflow on The Commons would connect the Wellfield Road cycle path, Lister House surgery, the Town Centre, ASDA, and if St Peters Close could be made a cycle path it could join with the cycle path along the north side of Cavendish Way.
The section from Wellfield Road to the first bend is already plenty wide enough and the area around Lister House is double yellow - though people do park there and people, particularly elderly or disabled should have access.
St Peters Close has plenty of room.
The section from the first bend to Lemsford Road needs a bit more care but looks doable.
I think this would be a great addition to our cycle path network.