Pursuant to the provisions of § 278(2) 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 conservational purposes, and in order to implement the objectives of this chapter.