The Zoning Regulations and Districts as herein established have been made for the purpose of promoting the health, safety, morals and general welfare of the City. They have been designed to lessen the 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 facilitate the adequate transportation, water, sewage, schools, parks, and other public requirements. They have been made with reasonable consideration, among other things, for the character of the district, and its peculiar suitability for the particular uses specified; and with a view to conserving the value of adjacent property, buildings and encouraging the most appropriate use of land throughout the City.