Flow Maps

http://www.lib.utexas.edu/maps/texas/combtrk_tx_1998.jpg

A Flow Map shows the movement of people or objects from one location to another. A Flow Map can be used to portray migration patterns of people or animals or it can show the migration of objects, such as trucks or cars. A Flow Map can also be used for organizing and ordering data. Most Flow Maps are drawn by hand. This Flow Map represents the total combined truck flows in Texas in 1998.