Marshall supports the need for defined settlement boundaries, which indicate the extent of existing and planned development and help to guard the countryside against incremental growth. In defining the settlement boundary on the eastern edge of Cambridge, consideration should be given to the safeguarding land east of Airport Way, in order to accommodate for the relocated Park & Ride and allow for any future expansion of Cambridge East. Given the sustainability of the site and the location, the expansion of Cambridge East would be the logical place to locate future growth, whether that is determined through this local plan or through subsequent plans.