(a) Content. The Council shall adopt and may, from time to time, modify a comprehensive plan setting forth in graphic and textual form policies to govern the future physical development of the City. Such plan may cover the entire City and all of its functions and services or may consist of a combination of plans governing specific functions and services or specific geographic areas which together cover the entire City and all of its functions and services.
(b) Adoption. Upon receipt from the City Manager of a proposed comprehensive plan or proposed modification of the existing plan, the Council shall refer such proposal to the City Planning Commission, which shall within a time specified by the Council report its recommendations thereon.
(c) Effect. The comprehensive plan shall serve as a guide to all future Council action concerning land use and development regulations, urban renewal programs and expenditures for capital improvements.