For the purpose of promoting the health, safety, convenience, morals and welfare of its inhabitants, the Town of East Longmeadow, under the authority granted by the Massachusetts General Laws, Chapter 40A, does hereby enact this bylaw to be hereafter known and designated as "The Zoning Bylaw of the Town of East Longmeadow." Further purposes of this bylaw are to lessen congestion in the streets; to secure safety from fire, panic and other dangers; to provide adequate light and air; to prevent the overcrowding of land; to avoid undue concentration of population; to assure maintenance of health and welfare of population; to facilitate the adequate provision of transportation, water, sewerage, schools, parks and other public requirements; to conserve the value of lands and buildings; to encourage the most appropriate use of land throughout the Town; and to increase the amenities of the Town. The construction, alteration, location, use and extent of use of lands within the Town of East Longmeadow are hereby regulated as provided in this bylaw.