I created a new red light camera map with revenue data obtained by Barnet Fagel from the Chicago Department of Revenue. The map below shows intersections that have generated $2,000,000 or more in revenue between 2007 to 2009. The complete data set lists the revenue for all intersections with red light cameras for each year (2007-2009). I have made it public, so please drop me a line if you find it useful.
Download the KML here
UPDATE: Here is a link to the complete table with all the revenue information