District scheme is used for evaluating the planning and design of an urban developments that work to improve the welfare of people and their communities by creating more convenient, equitable, healthful, efficient, and attractive places for present and future generations. In developing the plan for a community, a wide array of issues to be considered such as use and protection of land, outdoor environment, sustainable energy production, materials and water consumption. Districts can be of a mixed-use type that caters to the varying needs of the population or can be of a specific nature with a specific purpose e.g. an economic zone/city, an entertainment city, a media city and a health district etc. Districts typically consist of various building typologies and include several components such as infrastructure networks, transportation networks and public or open spaces. GSAS Districts can be applied to any combination of buildings and any size of development.