(a) Sidewalks shall be installed on both sides of all new public streets, unless this requirement is specifically waived by the Planning and Zoning Commission.
(b) Sidewalks shall be a minimum width of four feet. Curb ramps shall be constructed at all street intersections. The ramps shall be constructed in accordance with specifications and details set forth by the City Engineer.
(c) In addition, pedestrian easement ways, not less than twenty (20) feet wide and constructed to a width of not less than eight (8) feet, shall be required across blocks where the Commission determines that pedestrian access to schools, playgrounds, shopping centers, transportation and other community facilities is necessary.
(d) Sidewalks shall be constructed of Portland cement concrete.