Intersection
A spatial operation that identifies the overlapping areas or features between two or more datasets, essential for overlay analysis (inferred from standard GIS usage).
How do you define Intersection?
In GIS, the term "intersection" describes a geographical analysis process that determines the area that two or more overlapping geographic features share. Only the spatial extent where the input features overlap is included in the new layer or dataset that is produced as a result.
Key Points:
Used in vector analysis (points, lines, or polygons)
Preserves attributes from all input layers
Helps answer questions like:
"What land parcels are within a flood zone?"
"Which roads cross a specific protected area?"
In order to examine the connections between various spatial datasets, intersection is frequently used in planning, zoning, environmental impact assessments, and site selection.
Related Keywords
At a road intersection, two or more roads come together or cross, enabling cars and pedestrians to continue on their current path or change directions. To maintain safety and efficient traffic flow, it can be managed by roundabouts, signs, or traffic signals.
Where two or more roads meet or cross, a street intersection is where cars and pedestrians can continue their journey or change directions. In order to minimize accidents and guarantee smooth passage, intersections are frequently controlled by traffic signals, signs, or markings.
When two or more roads meet or cross at a junction intersection, cars and pedestrians can change lanes or continue on separate paths. In order to guarantee efficient traffic flow and lower accident rates, intersections must be properly designed and controlled.
The study and analysis of how two or more geometric shapes or spatial elements intersect or meet is known as intersection geometry. Finding the precise point, line, or region where roads, parcels, or other spatial features cross is frequently necessary in GIS and urban planning in order to facilitate precise mapping, traffic control, and spatial analysis.