What is GIS best used for in planning practice?

• A. Economic forecasting
• B. Public relations campaigns
• C. Spatial analysis, mapping, and visualization to support decision-making
• D. Legal research

Answer: (C)

Geographic information systems are designed to collect, manage, analyze, and visualize spatial data. In planning practice, the real power comes from layering different data sets—like parcels, roads, flood zones, demographics—and using spatial analysis to understand how changes will affect specific places. This enables evidence-based decision-making, because you can model scenarios, assess impacts, spot patterns, and clearly communicate findings through maps and visuals. That combination of analysis, mapping, and visualization to support decisions is what makes GIS best suited for planning.

Economic forecasting focuses on time-based trends and econometric models rather than location-based analysis. Public relations campaigns center on messaging and audience reach rather than spatial data. Legal research deals with statutes, case law, and legal precedents rather than geographic analysis. While GIS can support these areas in some ways, its primary strength in planning is the spatial analysis, mapping, and visualization that informs decisions.