I drove down to Chicago yesterday (Tuesday, 2012-09-11) and noticed a few interesting items.
-IDOT has added the new MUTCD yellow outlines to the black 'target' background frames around its overhead mast-arm signal heads along US 41 (Skokie Highway) in Lake County. Although I would have much preferred that the feds used white instead of yellow, as is the standard in Europe, they do look pretty nice and do make the signal heads much more visible, especially at night. It will be easy to tell that there are signals at an intersection should the power fail at night, too.
-Chicagoland is lousy with Clearwiew, although a limited few FHWA BGSs still exist on the expressways, including some button copy.
-The badly overdue rebuilding of the north-south part of Wacker Drive in downtown Chicago is well under way with the forms for the southernmost couple of blocks now being constructed. The parts farther north that are done look *fantastic* and it should be a great drive when all is done. I'm not sure if it is expected to be done yet this year, but it might be close.
-Is the City of Chicago cutting back on the number of streetlights on their streets?

From the Sears Skydeck, some streets looked dimmer and less intensively lit than I remember the last time that I was there, even though those streets still used high-pressure sodium-vapor lamps.
Mike