If service roads can be left in place in certain areas why is it not possible to retain all of the service roads?

At the end of the day, the intention was to look at bike and pedestrian mobility within the service roads and look at opportunities where we could remove the service roads because the service roads themselves are maintained by the local municipalities and not PennDOT. 

Obviously as long as the frontage or the service roads are detached from US 1 they can be retained, but they will not have access to US 1.  At that point they would just be local one-way connector roads between say Bellevue and the Southern Limit of the project on either side.