(a) The plans of the municipality shall be prepared in order to promote, in accordance with present and future needs, the safety, morals, order, convenience, prosperity, and general welfare of the citizens.
(b) The plans may provide, among other things, for:
(1) Efficiency and economy in the process of development;
(2) The appropriate and best use of land;
(3) Convenience of traffic and circulation of people and goods;
(4) Safety from fire and other dangers;
(5) Adequate light and air in the use and occupancy of buildings;
(6) Healthful and convenient distribution of population;
(7) Good civic design and arrangement;
(8) Adequate public utilities and facilities; and
(9) Wise and efficient expenditure of funds.