“Building frontage” means the length of the building facade which contains a primary public entrance or is oriented toward a public street. Entrances not considered primary public entrances include but are not limited to doors, used mainly for loading or delivery, emergency exits or employee entrances. For the purpose of locating and sizing wall signs, the length of business tenant spaces in multi-story buildings oriented toward a public street or located on the same side of the building with a primary public entrance would be considered building frontage. (Ord. 2310 § 27, 2000)