This chapter has been developed for the purpose of lessening congestion on roads and highways; to secure safety from fire, panic and other danger; to promote safety from fire, panic and other danger; to promote health, morals and the general welfare; to provide adequate light and air; to prevent the overcrowding of land; to avoid undue congestion of population; to facilitate the adequate provision of transportation, water, sewage, schools, parks and other requirements and facilities; to provide for a reasonable mix of land uses and dwelling types; to preserve scenic and historic values, prime agricultural land, natural areas, aquifers and floodplains and to accommodate reasonable overall community growth.