I've been asked to do a favor for someone since I'm "the mapping guy" and could use some theoretical help by way of examples since my actual cartography skills are a little rusty.
I have a series of points (~200) that represent events within a city over the course of a year. These events occur all over, but it's common that some points will overlap (e.g. events occurred at the same location).
I'd like to display all of the points, but in the case of overlapping points would like to highlight the fact that the frequency of events is higher at those locations. I can think of a few ways to do this (size, color), but could use some examples or information on techniques that I could use to turn this data into an informative map.
I'm currently using ArcGIS 10 to project and display the points.
Best Answer
What about using "collect events" from the spatial statistics toolbox; I think this is available at all license levels?
This will automatically count overlaps and symbolise with graduated markers, but you could use the count to symbolise any way you like.