A municipality for the purpose of this article shall formulate for its area of operation a workable program for utilizing appropriate private and public resources to eliminate and prevent the development or spread of blight, to encourage needed rehabilitation, to provide for the redevelopment of blighted areas, or to undertake any of these activities or other feasible public activities as may be suitably employed to achieve the objectives of the workable program. The workable program may include, without limitation, provision for: the prevention of the spread of blight into areas of the municipality which are free from blight through diligent enforcement of housing, zoning and occupancy controls and standards; the rehabilitation or conservation of blighted areas or portions thereof by replanning, removing congestion, providing parks, playgrounds and other public improvements, by encouraging voluntary rehabilitation and by compelling the repair and rehabilitation of deteriorated or deteriorating structures; and the clearance and redevelopment of blighted areas or portions thereof.