A. To assist in providing a definite plan of development for the city and to guide, control and regulate the future growth of the city in accordance with the master plan;

B. To provide a guide for the intelligent use of the capital expenditures of the city for street and highway improvements;

C. To provide an authentic source of information as to development of the city for present and prospective residents and investors therein;

D. To reserve areas for future widening, extension or creation of streets or space for future utilities, pedestrian ways, vision clearance, fire and police emergency access, access to property and for other essential public services;

E. To prevent deterioration of property values and impairment of conditions for desirable residential, commercial, industrial, institutional or public development which would result from the lack of plans designed to promote orderly, harmonious and beneficial development of the city and all sections thereof.