Welcome to the City of Alexandria’s Geographic Information Systems web page. The purpose of this site is educate the public about Alexandria’s GIS technology. The GIS team strives to bring together accurate, up to date, geographic information in an easy to use format and increase the efficiency of City government. Please spend a few minutes to browse our exciting new features, tools, and maps. Questions, comments, or suggestions regarding the GIS web page may be sent to: gishelp@alexandriava.gov
Enable the City to improve communication and decision-making to ultimately better serve the public through the efficient use of Geographic Information.
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Geographic Information Systems is a technology that links geographic information (features) with descriptive information (attributes). GIS can be described as having multiple layers of data assembled into a digital map. GIS is used to visualize, explore, query, edit, and analyze geographic information.
One of the most valuable aspects of GIS is how data can be analyzed spatially. Spatial querying is the process of selecting features based on location or spatial relationship. Click here to view an animated example of how a user can quickly identify all addresses within 500 feet of a Metro stop.
To learn
more about GIS please visit www.gis.com/whatisgis/index.html
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Our Role in Alexandria City Government
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Geographic
Information Systems is a Division of the
Department of Planning and Zoning. The GIS Division is responsible
for identifying geographic mapping and analysis needs for the City.
Coordination with many city departments such as Real Estate, Police,
Fire, and Transportation & Environmental Services, ensures geographic
data is maintained in a consistent way from a single source. Some
examples of this successful coordination include the conversion
of hard copy tax maps into digital parcels, analyzing population
shifts for the redistricting of the Alexandria Public School Board,
and development of a snow mapping application that provides the
ability to track the City’s snow removal activities.
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