This chapter is enacted to promote the public health, safety, morals and general welfare of the residents of the Borough of Sinking Spring by encouraging the most appropriate use of land and buildings; preventing the overcrowding of land; avoiding undue congestion of population; providing for adequate light and air; conserving the value of land and buildings; securing safety from fire, panic, flood and other dangers; facilitating the adequate provision of transportation, water, sewerage, school and other public facilities.