The planning and engineering of an infrastructure system is an iterative process whereby the engineer tries to achieve an optimal
solution within the applicable engineering design criteria. An optimal solution will generally have a number of characteristics, for
example in terms of costs: the solution chosen should lead to favourable construction costs and low maintenance costs. On the other
hand, the design should be such that all inhabitants have access to a service, that this service is of good quality and that the
organization responsible is able to take care of the infrastructure once constructed. In a design process, these aspects are explicitly
and implicitly present, however often not addressed in a systematic manner. In the current study, the use of GIS in infrastructure
planning will be explored as a means to provide such systematic approach. The study addresses the application of GIS in the planning
and design of urban infrastructure in a newly planned urban development in Egypt called “New Fayoum”, focusing on the planning
and design of a new sewerage network with pumping station facilities and a road network. It is concluded that GIS can be an
important tool for the success of the Egyptian Government new urban development strategy to facilitate informed decision-making in
its planning process if it incorporates GIS in the planning system.