Phasing. If the development is to be implemented in phases, each phase must have adequate provision for access, parking, open space, recreation areas and stormwater management and other public improvements to serve the development in accordance with the applicable criteria set forth. Where the overall development of an entire planned unit development site will require more than 24 months to complete, such developments shall be required to be phased. Each phase shall be provided with temporary or permanent transitional features, buffers or protective areas in order to prevent damage to completed phases, to future phases and to adjoining property.