Upon adoption of a resolution by the City Council designating an area as a restricted residential parking area, the traffic engineer shall cause appropriate signs to be erected along the streets identified in the resolution prior to the effective date for the commencement of the restriction or restrictions and any enforcement of the restricted residential parking regulations. The street signs erected shall give notice of the nature of the parking limitations and shall indicate the hours and days when such parking limitations shall be in effect. At least one sign shall be located in each block within a restricted residential parking area. (Ord. 96-13 §9, 1996).