The several subzones established by Section 17.45.020 shall be shown and delineated on the airport zoning map of the city which is adopted. Such zoning map, for convenience and identification, is divided into parts corresponding to the operational areas of the respective airports included with the provisions of this chapter. Additional parts of the airport approach zoning map may be adopted from time to time by ordinance. Each part of the airport approach zoning map of the city hereafter adopted by ordinance shall have a descriptive title and shall contain diagrams, including a plot plan of the subject runways, the location and dimensions of all subzones described in accordance with the formulas established for the regulation of any of the aforementioned subzones. (Ord. 2719 § 1, 1982)