Flow Line Mapping

Module 10 continues our education of the different types of thematic maps.  This week focus was line flow maps.  Line flow maps are used to show a number of different types of flow including traffic, commodities, migrations, and air flow, to name a few.  This week we showed the statistics covering the immigration to the United States for the year 2007.  Using proportional lines we are able to visually and immediately give the reader of the map a clear indication where the most and fewest immigrants came from.  This map was made using a predetermined background created in ArcMap, with all other aspects being created by me using Adobe Illustrator.  This week, I finally started to get the hang of the pen tool.