Symbolizing Dispatch Call Data

Discussion created by rwiseman on Nov 20, 2012
Latest reply on Nov 28, 2012 by clthompson
I am trying to map call data from our city's dispatch logs, and I'm having some trouble finding a way to use symbology effectively on this map. First of all, there are many areas with multiple overlapping points, so those will need to be aggregated, preferably into a graduated symbol representative of the number of calls taken at that location. The second problem is that the symbols will also need to be classified by response time, I have a field in the call data that has a time in seconds from dispatch to arrival, and we would like these to show which calls had response times under 6 minutes, 6-8 minutes, 8-10 minutes, and 10 minutes+. If anyone has experience with this kind of data, I would appreciate any input you might have.