The plans for the improved shared pavement between Waterbeach and Milton have been added to the planning portal. Planning application: S/0559/17/COND29
Also please note the A10 SLO for a reduction of the speed limit on these sections from 50mph to 40mph.
From looking at the plans my main concerns
Narrow sections - less than 3m wide, which is not LTN 1/20 compliant and very unambitious seeing as 11,000 homes are being built in Waterbeach.
The separation from the carriageway is also very unambitious at 0,5m and not a properly segregated verge. 0,5m is the absolute minimum suggested in LTN 1/20. 1m is the minimum recommended.