This chapter is enacted for the purposes, inter alia, of lessening congestion on the roads and streets; securing safety from fire, panic and other dangers; promoting health and the general welfare; providing adequate light and air; preventing the overcrowding of land; avoiding undue concentration of population; facilitating the adequate provision of transportation, water, sewerage, schools, parks and other public requirements; and promoting the health, safety, morals and general welfare of the Township of Whitpain, County of Montgomery, Commonwealth of Pennsylvania.