Government - Internal City StructureBusiness - Tools For GrowthServices - Provided by the CityCommunity - Resident EngagementEnjoy Norfolk - Leisure & VisitorsHow Do I - Information Center
Elizabeth River with a Tugboat, Sailboat and the USS Wisconsin

Go To Search
Norfolk Cares
       Request Service
How does GIS work?
It is estimated that approximately 80% of all information has a "spatial" or geographic component. In other words, most information is tied to a place. So when making decisions about siting new facilities, creating hiking trails, protecting wetlands, directing emergency response vehicles, designating historic neighborhoods or redrawing legislative districts, geography plays a significant role.

This is where GIS comes in. Geographic Information Systems (GIS) technology is a computer-based data collection, storage, and analysis tool that combines previously unrelated information into easily understood maps. But GIS is much more than maps. A GIS can perform complicated analytical functions and then present the results visually as maps, tables or graphs, allowing decision-makers to virtually see the issues before them and then select the best course of action.

Add the Internet, and GIS offers a consistent and cost-effective means for the sharing and analysis of geographic data among government agencies, private industry, non-profit organizations, and the general public.

Geographic Information Systems

Show All Answers

1. What is GIS?
2. How does GIS work?
3. What can GIS be used for?
4. Is there a GIS Wiki?
5. Are there any GIS User Groups?