I'm wrapping up a very large wall map (50" x 70") for a company's distributed sales force around the country. They wanted to show each of their 40ish sales reps and the cities that they serve, and the map needed to be read from approximately 5 - 10 feet away. Even though the map is the largest I've ever worked on, it still gets crowded in the most populated areas, especially when there are 3-4 different sales reps in a tight area. We've color coded each rep's cities but with 40 different reps and growing, I'm not sure how sustainable a strategy that is. Some of the colors are somewhat close to each other and I rely on geography a little to help separate them into clusters.
For the screenshots below, I've turned off the sales reps labels which would appear in a 36pt Helvetica Neue Heavy Condensed, colored to the individual's assigned color and placed as close to their city cluster as possible. I've also turned off all of the other identifying labels and marks for this company at their request.
As always, thoughts, comments, criticisms are appreciated.