GIS applications


GIS Industry

Parcel inquiry on Sangamon County, IL GIS Tax Parcel ViewerParcel inquiry on Sangamon County, IL GIS Tax Parcel Viewer.

How GIS is Being Used in Real Estate

What do GIS and real estate have in common? They both place a very high importance on location. For real estate professionals, location is always one of the determining factors influencing property value. For GIS users, location is the origin of geographic data. The accuracy of location determines the value of data […]

Spatial Analysis

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