The purposes of this chapter and zoning districts
as outlined on the Zoning Map are to provide for orderly growth in
accordance with a comprehensive plan, to lessen congestion in streets,
to secure safety from fire, flood and other dangers, to provide adequate
light and air, to prevent overcrowding of land, to avoid undue concentration
of population, to facilitate the adequate provisions of transportation,
water, sewerage, schools, parks and other public requirements and
to promote the health, safety, and general welfare of the public.