A variant on the Proportional Symbol approach is the Graduated Symbol map
Proportional Symbol Maps with ArcGIS
US lynchings Proportional Symbol Maps.
I knocked up a quick proportional symbol map that shows the total travel
Figure 4: Proportional Symbol Map of Philadelphia County, PA. indicating
Figure 5: Proportional symbol map with symbol size as a function of
Figure 1: Proportional symbol map created using a symbol rule and
This map uses proportional symbols to show how many Kenyans were displaced
polygon to make a proportional symbol map – where the size of the symbol
Proportional Symbol Map:
Choropleth Map with Proportional Symbols from ARCDATA PRAGUE, in GIS: Our
Image of Proportional symbols map two
The “Where The Oil is Map” Justin posted seems to be a class favorite.
Proportional or graduated symbols are a great choice when you have small
"Bubble" map (aka "Proportional Symbol Map") depicting oil-well production
A proportional symbol map showing cholera prevalence for each community.
Figure 5: Proportional Symbol Map of Philadelphia County,
Image of Proportional symbols map. Source: Extract from an Office for
Example of a customized proportional symbol legend
Is this a proportional symbol map? Known oil reserves