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maintenance surface materials such as pavers, bricks, or scored concrete to <br />enhance pedestrian safety and comfort, as well as the attractiveness of the _ <br />walkways. <br />('n Interior Yard Landscaping. Interior yards abutting a lot with a residential <br />zone shall be provided with landscaping that meets the requirements in EC <br />9.6210(7) Massed Screening Standard (L -7). The required landscaping maybe <br />pierced by pedestrian and vehicular access ways. <br />(8) Service and Loading Areas. <br />(a) Loading docks, outdoor storage, utility meters, mechanical equipment, <br />trash collection, trash compaction, and other service functions shall <br />comply with the standards stated in EC 9.2170 Commercial Zone <br />Development Standards - General. <br />(b) Outdoor areas for the display and sale of seasonal inventory shall be <br />permanently defined and landscaped as set forth in EC 9.2171(11) <br />Outdoor Merchandise Display. <br />(9) Delivery and Loading Facilities. On lots abutting parcels zoned for residential <br />development, delivery and loading facilities shall be set back a minimum of 30 <br />feet from property lines with required setbacks landscaped to at least the <br />standards in EC 9.6210(4) High Wall Landscape Standard (L -4). <br />(10) Exterior Wall Articulation, Facades, and Ground Floor Windows. <br />(a) Exterior building walls shall not continue along an uninterrupted plane for <br />more than 100 feet. An uninterrupted plane is a wall that has no variation <br />in exterior surface along its length. Except for building walls facing an <br />alley, ground floor facades 100 feet or greater in length, measured <br />horizontally, shall incorporate wall plane projections or recesses having a <br />depth of at least 3 percent of the length of the facade and extending at least <br />20 percent of the length of the facade. (See Figure 9.2173(10)(a) Large <br />Commercial Facilities- Exterior Wall Articulation.) <br />(b) Ground floor facades that face streets adjacent to the development site <br />shall have arcades, collonades, display windows, entry areas, awnings, or <br />other such features along no less than 50 percent of their horizontal length. <br />(See Figure 9.2173(10)(b) Large Commercial Facilities- Exterior <br />Facades.) <br />(c) Except for building walls facing an alley, ground floor walls shall contain <br />windows (as stated below) at the ground level. The windows may extend <br />a maximum sill height of 4 feet above finished grade to any head height. <br />The portion of window area meeting this standard is from the sill (bottom <br />edge) to the head (top edge) including portions up to 9 feet above the <br />finished grade. Alcoves, entryways, and extruding portions of the wall <br />shall be treated by measuring through such areas as though along the flat <br />wall of a building. (See Figure 9.2173(10)(c) Large Commercial <br />Facilities- Ground Floor Window Calculation.) Solid walls are <br />prohibited along street frontages. This standard does not apply to parking <br />Ordinance - 64 <br />