To promote, protect and facilitate the public health, safety and general welfare, coordinated and practical community development, proper density of population, emergency management preparedness and operations, the provision of adequate light and air, access to incident solar energy, police protection, vehicle parking and loading space, transportation, water, sewerage, schools, recreational facilities, public grounds, the provision of a safe, reliable and adequate water supply for domestic, commercial, or industrial use, and other public requirements; as well as the preservation of the natural, scenic and historic values in the environment and preservation of wetlands and floodplains.