What is a flow map?

A flow map is a type of map that shows the movement or flow of goods, people, information, or other resources from one location to another. It typically uses arrows or lines to indicate the direction and volume of the flow between different geographic locations.

Flow maps can be used to visualize and analyze various types of spatial relationships, such as migration patterns, trade routes, communication networks, and transportation systems. They are commonly used in fields such as geography, urban planning, logistics, and social sciences to understand the dynamics of spatial interactions.

Flow maps can be created using geographic information system (GIS) software, design tools, or hand-drawn techniques. They can also be interactive, allowing users to explore and interact with the flow data to gain insights and make informed decisions.

Overall, flow maps are a powerful visualization tool that helps to convey complex spatial relationships in a clear and intuitive way.