public facing GIS frederick city MD

Digital do-it-yourself city mapping

Frederick, Md., has made it easy for consumers and government staff to get GIS mapping data about the city thanks to a new digital do-it-yourself service.

Officials launched about a month ago. The cloud-based website takes the work off the desks of city workers and lets people look up the information they need on their own. Before, if people wanted zoning data for a project, for example, the city had to assign staff to assemble the information and send it off as a shapefile or feature class, said Matthew Bowman, the city’s technology manager.

Now, however, users can go to the site, where they’re greeted with a Google map and a gray transparent box that they can manipulate to adjust the size of the area they want to see, zooming in and out to get as much detail as they need. Once they have the region they want, they can click “Filter” at the bottom of the page. A box pops up inviting users to select the data to be exported, such as aerial imagery or details on utilities locations, subdivisions, sewers, improvement plans and plats.

Next, users choose the format in which they want the data -- JSON, KMX or image -- and click “Export.” Another browser window opens with the information requested.

The website's data is updated automatically as the staff makes internal updates. For instance, when parcels subdivide and a new community comes in and is platted, the information is updated. “Once those changes are made, they are seen by the service,” Bowman said.

The GIS Department typically gets one to two requests per week for GIS data, he said, and it can take 15 to 30 minutes for staff members to pull a response together, although it could take awhile for them to get to the query. “It’s not a huge difference, but every little thing helps,” Bowman said of the time savings.

Another benefit is that the service cost the city nothing to set up. It came about through a partnership with Frederick Meetup Groups, which include Python Frederick, Frederick Linux User Group, Frederick Startup Community and Frederick WebTech.

“We gave them the ins and outs on the services that are used in SpiresGIS [the city's GIS system] and how they could be more easily consumed by local people and professionals as well,” Bowman said. SpiresGIS provides interactive mapping applications for use by citizens and government employees that were developed using Esri’s JavaScript application programming interface and ArcServer. Those applications let users search for traffic count information, road closures and historic properties.

Because the service is so new, Bowman said he hasn’t gotten much feedback on it yet. Right now, the focus is on getting the word out about its availability.

About the Author

Stephanie Kanowitz is a freelance writer based in northern Virginia.


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