My apologies if this turns out to be a fairly basic question to answer:
I have a .csv file of approximately 6000 rows that comprise (among other data columns) city names accompanied by latitude and longitude values (see photograph attached). I've successfully managed to convert the XY data to lines within ArcMap; however, the number and density of lines makes it difficult to interpret these results in any meaningful way. I'd like to find ways to edit the line symbology, density, or color based on how many repeat instances of identical destinations are within the dataset. Some specific examples of changes I'd like to experiment with:
I believe the solutions to what I'm looking for can be found by right-clicking on the mapped data lines and accessing Properties > Symbology, but I don't know which specific steps to take beyond that. I appreciate any and all advice that can be given on this issue, or any additional suggestions on interesting ways to present this data. Thanks in advance for your time.