Map Where Things Are
|What is GIS|
|Map Where Things Are|
People map quantities, like where the most and least are, to find places that meet their criteria and take action, or to see the relationships between places. This gives an additional level of information beyond simply mapping the locations of features.
For example, a catalog company selling children's
clothes would want to find ZIP Codes not only around their
store, but those ZIP Codes with many young families with
relatively high income. Or, public health officials might not
only want to map physicians, but also map the numbers of
physicians per 1,000 people in each census tract to see which
areas are adequately served, and which are not.
|Find What's Inside|
|Find What's Nearby|