Where land within a subdivision is set aside for common open space purposes, such common open space shall be located so as to be free of traffic hazards and accessible from a public street, and where topography permits, be centrally located, reasonably compact, and easily accessible to all residents of the subdivision. Whenever a Subdivider is required or proposes to provide land or structures for the benefit of residents of a proposed subdivision, a Home Owners Association shall be established to provide for the maintenance of such areas in accordance with the City Zoning Code. Where a Subdivider provides active play area or other recreational facilities, the Subdivider may be required to provide suitable guarantee of the completion and maintenance of said facilities in accordance with the procedures of Chapter 1121 of these Regulations.