Infrastructure. In the case of infrastructure such as sanitation, roads and drainage, other
strategies may also be used. Development agencies may develop new low-cost technologies that residents can install themselves.
Frequently, they offer to subsidise the cost through the provision of materials and/or technical assistance with the community groups offering free labour NGOs may be concerned with ensuring that municipal investments are made in the lowest-income settlements. They may also be anxious to ensure that the communities
themselves can participate in the construction, planning and management of the programmes