As maps are useful as tools to displaying geographical information, they can be specified in a variety of ways to suit the argument of the maker. Flow maps are a type of this specification in that they combine the geographical elements of maps with arrows, vectors, or some type of directionally motivated symbol. The advantage of these is that they can show movement patterns or some type of change of location over time. The map displayed shows the movement of telecommunications traffic throughout Europe based on countries. Movement is very strong throughout the UK, Germany, and France as shown by the thickness of the lines on the map and flows throughout all of Europe as overshoots from these areas.
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