Before a cluster development plan is approved, the applicant shall have submitted to the Planning Board a set of detailed plans showing lot and street arrangement, density patterns, site design, landscaping and all other pertinent information. The Planning Board shall review the plans in terms of conformance with the standards of this chapter and the Township Master Plan before granting approval thereof. The Planning Board shall, within 45 days after its receipt of such site plans, approve or disapprove the proposed development with respect to adequacy of planning and zoning standards. The absence of action on the part of the Planning Board within and including the forty-five-day period shall constitute approval of the site plan.