LAZ wrote
Planners of events drawing folks from all across the city and suburbs might want to consider allowing somewhat for the unpredictable vagaries of Chicagoland traffic.
A good source on traffic is
http://www.gcmtravel.com/gcm/home.jsp which has real-time maps of traffic congestion as well as construction info.
For those planning an "athon" moving from place to place, careful route planning helps. Call ahead to be sure of the hours that places are open.
As an example, for the beefathons we found that about 45 minutes between IB stands worked well as the food was prepared (and consumed) quickly after ordering. We also learned that the practical upper limit was 5-6 places per beefathon. After that tummy limits/taste bud fatigue set in. Also, most people weren't able to devote more than a few hours to the event.
Where there’s smoke, there may be salmon.