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What is GIS?

GIS is an acronym for Geographic Information System. This is basically a computerized system for managing and viewing large amounts of information geographically. A geographic information system (GIS) integrates hardware, software, and data for capturing, managing, analyzing, and displaying all forms of geographically referenced information. Practitioners also regard the total GIS as including operating personnel and the data that go into the system.

How is GIS used at The City of Orange?

A GIS can support many areas of work with virtually unlimited information compatibility. Besides using GIS to create maps of Orange, our GIS is used as a tool to support decision making in areas such as planning, design, maintenance, repair, and emergency response. It allows City staff to work faster with increased efficiency and accuracy while providing improved decision making capability. The GIS allows import from and export to most CAD, database, spreadsheet, and word processor applications, as well as electronic image and scanned document support.

What software does the City use?

The City of Orange uses ESRI products such as ArcGIS and Arcview running on Windows XP workstations. We also use ArcIMS and ArcServer software to create interactive browser based mapping applications.

What is requried to view the maps on the website?

The webisite consists of static maps under the Map Catalog tab and dynamic maps under the Interactive Maps tab. The static maps can be viewed with Adobe Acrobat Reader. This can be downloaded at the Adobe Acrobat website. The dynamic maps can be viewed using a web browser such as Microsoft Internet Explorer.

How current of accurate is the GIS data?

Most of our GIS data is updated as changes occur to the data. If a change occurs to a particular map layer or static map it will be posted to the website as soon as possible. The accuracy of the data depends on the source that that data was collected from and how it was entered into the GIS.


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