A. Commercial Districts: Alleys shall be provided in all commercial districts, except where a commercial district will be developed as a self-contained unit; then other provisions shall be made on the site for service drives and service areas.
B. Residential Areas: Alleys shall not be approved for residential areas unless a secondary means of access to certain property is necessary because of topography or other exceptional circumstances.
C. Width; Paving: Alleys in commercial areas shall not be less than thirty feet (30') in width and shall be paved; in residential areas where required, shall not be less than twenty feet (20') in width.
D. Dead End Alleys: Dead end alleys are prohibited, except where natural or other features make it impossible to continue them. Where dead end alleys are unavoidable, they shall be provided with adequate turnaround areas with a minimum radius of forty feet (40') at the dead end. Backaround areas may be allowed in residential subdivisions. (1990 Code § 12-419)