overlays

Overlays are a way to add extra information or features on top of an existing digital map or interface without changing the original data. Think of them as transparent layers that can display routes, boundaries, icons, or other details to enhance understanding or functionality. They are commonly used in geographic information systems (GIS), navigation apps, and mapping tools to provide additional context without altering the underlying maps. Overlays make it easier to visualize complex data, such as traffic patterns, property lines, or weather conditions, by layering relevant information over the base map.