I feel (and this is very common in NYC region) that Chicagoans (and maybe I'm biased as i listen WBBM traffic on the 8s and can freehand a Chicago 'expressway' map I've driven through/around it so many times) when I cruise through, use the 'Named' moniker of the road more than using any other type of term of art. (e.g. Dan Ryan, Bishop Ford, Kennedy, Edens, Eisenhower, tri-state, etc.). About the only one that gets called out by number 100% of the time is 'Eighty-Ninety-Four' which is probably my most hated stretch of road in America.