Pennsylvania Statutes Title 53 P.S. Municipal and Quasi-Municipal Corporations § 10301.2. Surveys by planning agency

In preparing the comprehensive plan, the planning agency shall make careful surveys, studies and analyses of housing, demographic, and economic characteristics and trends;  amount, type and general location and interrelationships of different categories of land use;  general location and extent of transportation and community facilities;  natural features affecting development;  natural, historic and cultural resources;  and the prospects for future growth in the municipality.