More than Just Maps – How Public Works Departments are Realizing the true Power of GIS

The visual appeal of a well-designed map created in GIS can blind many to the treasure within. It can also lead people to believe all we are doing is making pretty maps. If you're working for an agency that still doesn't “get” GIS, how can you help open their eyes to the true value hidden within the map? Sometimes the best way is to determine a question your agency has always wondered about and use GIS to provide the answer. One question for our city was, does every building in the city have a water meter? To answer this, we simply plotted in GIS all the water meter accounts using addresses from a file given to us from water billing. Then we compared these account locations to the locations of existing buildings. We used the polygons from our building feature, but we could have also used an aerial. By doing this, we could tell right away where there was a building but no meter. And where we knew there was a building that had to be using water but was shown with no meter, we knew something was wrong. Because we also have water service lines and shut-off valves in GIS, we could also see if there was a service but no meter. But any utility could perform the same check even if they had no service or shut-off data. GIS provided another useful bit of information when our community development department received a request from a group of residents to consider amending the zoning ordinance. These homeowners were concerned that the current ordinance, passed in 1995, had created a situation that would prevent them from rebuilding if their homes experienced significant damage from fire or other disaster. The department used GIS to determine the number and location of lots throughout the city falling into this category. This allowed the department to better understand the true impact on neighborhoods created by the ordinance. And it allowed them to better demonstrate to the council there would be no negative impact by amending the ordinance. Wheaton, Ill., has been using GIS over the last couple years to track coyote sightings. Coyotes had been returning to the area, and people were concerned. They felt perhaps the coyotes were only in specific areas. The city thought by tracking their locations, perhaps they could better determine why the coyotes were venturing into the city. So whenever a call came in about a coyote, city staff entered the information into GIS. After two years of plotting calls, they could easily see that coyotes were in every area of the city. Although it didn't lead to a direct solution, it did help people better understand what was going on. Pam BroviakWe can all take advantage of the fact that most cities are looking for answers to the same problem. And we can benefit from the examples left by other cities using GIS to provide these answers. They might be simple and obvious uses of GIS to us, but many outside of GIS are still not aware of the full service we can deliver. Providing a few simple demonstrations like these can go a long way in convincing your co-workers that GIS is more than just a map. And if you know of any simple but effective uses of GIS to answer common questions, make sure to share them in the comment area! By Pam Broviak, City Engineer/Assistant Director of Public Works at City of Geneva, Illinois. About Pam Broviak Pam Broviak is a City Engineer and Assistant Director of Public Works at the City of Geneva, Illinois. Pam is also a contributing blogger at Hanley Wood (Public Works Magazine) and at the Public Works Group blog. Follow Pam on Twitter. All views expressed by me are my own and not those of The City of Geneva or of any person or organization affiliated or doing business with The City of Geneva.