Label sectors appropriately. As an aid to defining city sectors, present other modes of information such as photographs, slides, USGS maps as to identifying urban sectors and models. A central place is where people gather to buy and sell, provide and receive economic goods and services. Central places provide services to surrounding areas. Specialized cities serve wider areas and certain economic activities dominate.
People tend to spend as little time and effort as possible to satisfy their wants and needs.
Each service needs a minimum number of customers to maintain it. Descriptions of five zones. Three models- Concentric zone emphasizes the center and growth from it. Sector considers the city core as central but emphasizes topography and transportation avenues.