GIS
What is a Geographic Information System (GIS)?
A Geographic Information System or GIS is an in simple terms, a computer system capable of holding and using data that describe specific places. Layers of information can be combined to give you a better understanding of those specific places. GIS is often referred to as a “mapping software,” because detailed maps are one of the visual products of a GIS system. However, a GIS doesn't really hold maps or pictures, but rather a database of information used to create visual outputs, such as maps.
With regard to the wet weather sewer overflow issue, GIS can be an invaluable tool for communities. Communities can convert their existing sewer system maps to digital GIS format and incorporating the previous mapping activities of municipalities to produce an integrated map. Then more data can be added to the GIS database, including manhole locations, the size and current condition of sewer pipes and other critical information. If a municipality has televised portions of their sewers to determine the condition of the pipes, these video clips can be added to the database to provide further visual information about the system. In addition, other types of GIS maps, such as stream locations, slopes and soil types can be overlaid for a more technical evaluation of the system.
A detailed integrated GIS can help a municipality to prioritize and collaborate on the repair and rehabilitation of their sewer system.