Buffer Analysis
Definition
Buffer Analysis in GIS involves creating a zone of a specified distance around spatial features. It helps assess proximity relationships and impacts, often used in planning, conservation, and public safety.
Application
Used in environmental impact studies, urban development, health risk assessments, and infrastructure planning to analyze influence areas or protection zones.
FAQ
What is buffer analysis in GIS?
It is the creation of zones around features like roads or rivers to examine spatial influence or regulatory limits.
Why is buffer analysis important?
It helps evaluate environmental impacts, plan developments, and enforce zoning laws.
What are common buffer distances used?
Distances vary by use case—e.g., 100m for noise pollution, 1km for school zones.
Can buffers overlap in analysis?
Yes, overlapping buffers are analyzed to identify areas of cumulative impact or conflict.