Social access is a concept of the delivery of public services, facilities and amenities to intended user groups. Limited access may be due to their high cost, the lack of appropriate infrastructure or due to prejudices within the society that restrict use. Urban policy makers plan for universal access to potable water, sewerage disposal, solid waste disposal, medical aid and education. Policies may assume that the private sector delivers some or a part of these requirements. The actual “reach” of these systems is usually far less than required. This is particularly a concern in emerging, rapidly urbanizing societies.