A. Any paving of outer parking strips in residential zones shall be of asphaltic cement concrete to a depth of no less than one and one-half (11/2) inches. The sue of Portland cement concrete shall not be permitted. "Outer parking strip" as referred to in this paragraph shall mean that area lying between the curb and the sidewalk and not normally used as walkway, such as is common in commercial and industrial zones. Nothing herein provided shall be construed as permitting the parking of vehicles on such strips.

B. The use of asphaltic cement concrete or Portland cement concrete for the paving of parking strips in zones other than residential shall be determined by the city engineer.

C. Any paving of parking strips shall be considered to be a temporary measure only.

D. The paving of parking strips shall not be permitted in any location where Portland cement concrete sidewalks do not exist or where Portland cement concrete curbs do not exist.