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www.state.nj.us/dep/gis/maps4mayors.htm
The maps on this New Jersey DEP website show areas that were developed as of 1986 and areas that show "change" or added development between 1986 and 1995/97. Particular land use types such as commercial services, industrial uses, and residential development are extracted for each time period from the GIS data layer to produce the maps. The results allow conclusions to be made about development patterns between two separate time periods, often referred to as a "change detection analysis." The maps also contain an estimate for the current amount of impervious surface cover (sidewalks, driveways, parking lots, etc.) as well as how much of it was added between 1986 and 1995/97.