Population samples definition

2.1. Characterization of studied locations

In order to characterize each studied city, it was performed a statistic evaluation based on maps, surveys and analysis, related to social, economic and physical factors, to reach the total number of systems to be visited. This research had focused on the analysis of demographic density, average number of households per neighborhood and family average income, as exemplified in the Figure 1 below:

image201

Figure 1. Average Number of Households per Neighborhood, Demographic Density and Family Average Income of Belo Horizonte — Source: (www. pbh. gov. br) and IBGE (2006).