Every private street within the residential park shall be named and names clearly posted. Every residential park shall have a number which will be clearly visible from the roadway at all times. [Ord. 3731 § 28, 2005; Ord. 3300 § 3, 1998; Ord. 3209 § 2, 1997; Ord. 1843 § 3, 1977; Code 1970 § 19.08.090.]