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Search radius in GIS is a method used to search areas within a certain distance of a given starting point or coordinate. It facilitates the identification of geographic features and objects which exist within a given distance from a particular place.
The search radius can be customized as per the user requirement, allowing them to select a more suitable search area with a specific radius from the chosen coordinate. The search radius is also known as a buffer or proximity analysis and is most commonly used in proximity analysis. As a part of this analysis a circle or other geometric shape with the search radius specified is created around the given coordinate and all objects falling within the boundaries of this circle are identified.
1. Identifying nearby stores, banks, transport hubs etc.
2. Estimate risk levels in a geographical areas (for example occurrence of a natural calamity or a disease).
3. Identifying locations that are within a certain distance of each other (for example election constituencies, towns, cities etc).
4. Determine routes more economically (for example determining optimal routes for transportation such as roads and railroads).
5. Identifying potential locations for real estate investment.
6. Planning land use near a certain location.
7. Identifying areas for protection and conservation by creating buffer zones around conservation sites and nature reserves.
By using search radius in GIS, users can get a good understanding of the distribution of features and objects within a certain distance from a certain coordinate. This helps them better understand the spatial characteristics in a specific range, providing useful insights for various applications.