Maps simplify confusing data into an easy-to-interpret graphic tool. Computer mapping, also known as a geographic information system (GIS), works much like a spreadsheet or database program, where data contained in tables can be transformed into visually descriptive displays. In the case of spreadsheet software, the data becomes a bar chart or line graph, while in the case of a computer mapping program the data can be linked to a digital map and displayed spatially.One main difference between spreadsheets (such as Excel) and GIS software is the ability of the GIS to link the information from a table to a spatially accurate map of community districts, police precincts, neighborhoods, blocks, etc. These maps can be purchased from city agencies or private companies, or users can create their own maps or edit existing maps.
We utilize mapping technology to produce maps that integrate diverse types of data into layers of information — this data can be acquired from vendors and government agencies, or from your own organization’s databases.
An organization can use maps to:
(1) understand the characteristics of a given place
(2) illustrate the geographic distribution of their work
(clients, work sites, target populations, offices, etc.)(3) analyze the relationship between multiple data sets
(such as unemployment and crime)(4) select sites, locations, or objects based upon specific criteria.
Here are some questions we can answer using Mapping technology:
• Is there a relationship between asthma rates and proximity to certain
types of industry?• Where is the best place for a youth center
(or drug treatment center, or low-income housing complex, etc.)?• What social services and health care centers are located within
two miles of a housing project?• What are the social and economic characteristics of specific
neighborhoods (or blocks)?• Which individuals on our mailing list live closest to the proposed dump site?
• Which vacant lots in the city would be good candidates for being transformed
into community gardens?• What services await offenders returning to their communities?
