Parking, internal road, and service area setbacks: from a residential zoning district, 20 feet. These setbacks shall be reduced to 10 feet on the common boundary where cross-easements are provided if the property owners provide Council with proof that irrevocable cross-easements are offered to adjoining property owners and shown on the plan, providing for an access road and/or driveway of sufficient width for two-way traffic and adequate turn lanes, designed and constructed to Borough specifications, leading from one development to the other, with easements providing access off both properties to public highways.