Areas Not Covered by Master Plan. In areas not covered by the master plan, the layout of all improvements including roadways, curbs and gutters, street lights, parkways, parkway trees, dividing strips, sidewalks, sewer lines and water mains within the rights-of-way of all highways, streets, alleys and public alleys and public easements shall be in accordance with standards established by the City Engineer and adopted by the City Council, and where no such standards have been adopted, the arrangements shall be subject to approval by the advisory agency and the City Council.