Note: "AM rush hour" applies to "Symbol" area only-other locations occur at different times of day).
An officer usually stands outside just south of the Rockford Park District’s main office building with laser device. Typically clocks you as you drive near the "Symbol" sculpture (when you are heading southbound-haven’t seen any "northbound" enforcement yet). Officers are awaiting in line at the stoplight near the Sinnisippi Greenhouse to pull you over. This trap has also been performed with the "laser officer" kneeling on the right-side of the road near one of the lightposts located near the greenhouse’s lagoon instead of near the office building.
Also, this stretch of road sometimes has an empty "Rockford Police" car parked in the "exit ramp" area of Sinnisippi Park (the area used as the "emergency exit" during the annual "Festival of Lights") on the "northbound" side of the street-note the condensation on the car’s windows (ha ha ha!), esp. if the car has been there for awhile…
These "enforcement" actions are usually in place before 8 a.m. on days that they decide to target this stretch of "interstate-type" roadway-the decoy car usually is in place for a day at a time while the laser enforcement is only there for short time periods (probably due to the larger number of police involved).
Occasionally an IL state trooper will also be parked near the "Symbol" sculpture taking radar.
It seems as if one truely wanted to slow the traffic on this stretch of road, the police would drive in the traffic (both northbound and southbound at all times of the day) at 1 or 2 MPH below the 45 MPH posted limit and see who passes them, but this would not tie up morning rush traffic (by pulling over drivers on the "highway" portion of the road) and/or bring in ticket revenue like I’m guessing that the "laser" methods must do… (thus slowing traffic only on the day and time of enforcement).
As one who travels this stretch of roadway several times a day, the road in this stretch seems to be built for a higher limit than the posted 45 MPH (and is regularly driven on by many people going 60 MPH), so please be alert and watch your speed (both here and everywhere)!