1.1.1 Ranking of urban settlements from smallest to largest. 1.1.2 Settlement that provide goods and services to the surrounding rural areas. 1.1.3 Areas from where urban settlements draw their customers. 1.1.4 Minimum number of customers needed to make a business profitable. 1.1.5 The maximum distance that people travel to buy goods and services. 1.1.6 Type of goods that are purchased frequently.​