This chapter is in accordance with the Comprehensive Plan of Norristown, and Article VI, Zoning, and Article VII, Traditional Neighborhood Development, of the Pennsylvania Municipalities Planning Code Act of 1968, as reenacted and amended. This chapter is enacted for the purpose of promoting the health, safety, morals and general welfare of the municipality, and is designed to lessen congestion in the streets and highways; to secure safety from fire, panic and other danger; to provide adequate light and air; to prevent the overcrowding of land; to avoid undue congestion of population; to facilitate schools, parks and other public requirements; to conserve the value of buildings; and to encourage the most appropriate use of land throughout the municipality.