In order to accomplish the purposes of this Title, Provo City is hereby divided into zones in accordance with the General Plan of the City as hereinafter set forth. In the preparation of this Title, due and careful consideration was given, among other things, to the relative quantities of land needed for particular uses and to the suitability of such land for such uses, to existing and probable future conditions within the City, and to the character of each of the several zones, with a view to conserving the value of buildings and encouraging the most appropriate use of land throughout the City.