The planned unit development resulting from the application of the provisions of this section shall be made a part of the zoning map and identified thereon by appropriate reference to the detailed planned unit development map and explanatory text, if any, either by number or by symbol. (Ord. 2020 § 15, 1994; Ord. 1873 § 1, 1992; Ord. 1530 § 3, 1986; Ord. 743 § 1, 1974; Ord. 252 § 1, 1965; Ord. 190 Art. XII § 12.2, 1964)