Prior to the granting of final approval, the developer shall have installed improvements required by the Planning Board or have posted a performance guaranty or surety sufficient to cover the costs of said improvements. The Planning Board may solicit local, county, state, federal, public or semipublic agencies and knowledgeable individuals on what improvements shall be required. Improvements recommended by other agencies, such as a utilities authority, county, state or other governmental agencies, may be required by the Planning Board as a condition of final approval. The construction standards, and improvements herein are necessary to protect the health, safety, welfare, and convenience of the residents and public as well as needed to meet local, county, regional, state and national goals and objectives.