The zoning districts and regulations herein set forth and as outlined on the Zoning Map[1] are made in accordance with a comprehensive plan for the purpose of promoting the health, safety, morals or the general welfare of the public. They have been designed to lessen congestions in the streets, to secure safety from fire, flood, panic and other dangers, to provide adequate light and air, to prevent the overcrowding of land, to avoid undue concentration of population, to facilitate the adequate provision of transportation, water, sewage, schools, parks and other public requirements. They have been made with reasonable consideration, among other things, as to the character of each district and its peculiar suitability for particular uses, and with a view of conserving the value of buildings and encouraging the most appropriate use of land.