If you are going south on Donnelson Pike, before it turns into Harding, the cops are waiting for you. The trap is set at the bottom of a hill, as the road bends towards the right. The cops wait at the second Airpark Center Driveway. There is no way to see the trap ahead of time. The officer stands in the middle of the road and simply hand signals the first couple of cars to pull over in the driveway to receive a ticket. The speed limit is set ridiculously low at 40mph! Be carefull as your speed will increase going down the hill!