GIS applications

Distance decay model showing the probability of Osama bin Laden's location. From a UCLA study, 2009.

Distance Decay and Its Use in GIS

Distance decay is a phenomenon observed between locations or ethnic groups- the further apart they are, the less likely it is that they will interact very much. Distance decay theory in GIS can be used for other purposes such as the effects of time and distance on public transportation ridership, crime analysis, and health care.