Which analysis is specifically described as the site suitability method used to compare candidate sites?

Which analysis is specifically described as the site suitability method used to compare candidate sites?

• A. Cost-benefit studies
• B. Risk assessments
• C. Site suitability GIS multi-criteria analysis
• D. Environmental impact assessments

Answer: (C)

Site suitability analysis using a GIS multi-criteria approach is about evaluating potential locations against a set of factors and combining them into a single score for each candidate site. You gather relevant spatial data—like proximity to roads, slope, soil type, land use, environmental constraints, and other site-specific criteria—then normalize these layers and assign weights that reflect how important each criterion is. Running a weighted overlay produces a suitability map where every candidate site gets a score, allowing you to rank and compare them objectively. This method is specifically used to compare candidate sites because it directly integrates multiple factors relevant to site choice into one decision metric, making it easier to see which site best meets the overall objectives. Other analyses serve different purposes: cost-benefit studies focus on the economic trade-offs, risk assessments evaluate potential hazards and their likelihood, and environmental impact assessments examine likely environmental effects. While these analyses can inform site decisions, they are not the method designed to systematically compare multiple sites through a single suitability score.

Site suitability analysis using a GIS multi-criteria approach is about evaluating potential locations against a set of factors and combining them into a single score for each candidate site. You gather relevant spatial data—like proximity to roads, slope, soil type, land use, environmental constraints, and other site-specific criteria—then normalize these layers and assign weights that reflect how important each criterion is. Running a weighted overlay produces a suitability map where every candidate site gets a score, allowing you to rank and compare them objectively.

This method is specifically used to compare candidate sites because it directly integrates multiple factors relevant to site choice into one decision metric, making it easier to see which site best meets the overall objectives.

Other analyses serve different purposes: cost-benefit studies focus on the economic trade-offs, risk assessments evaluate potential hazards and their likelihood, and environmental impact assessments examine likely environmental effects. While these analyses can inform site decisions, they are not the method designed to systematically compare multiple sites through a single suitability score.