Pursuant to the provisions of § 281 of the Town Law of the State of New York, the purpose of this article is to enable and encourage flexibility of design and development of land in such a manner as to promote the most appropriate use of land, to facilitate the adequate and economical provision of streets and utilities, to preserve the natural and scenic qualities of open lands, in order to provide larger areas of open space both for recreational and conservations, purposes and in order to implement objectives of this chapter of the Code of the Town of North Greenbush.