Well, I agree that 3 or 4 are too many, but one who is doing his/her job during rush hour would be a godsend. Yesterday, I sat for THREE light changes at a Near North intersection while IDIOT drivers repeatedly blocked the intersection, preventing traffic in my direction moving at all. After that, when my light turned green again, I just drove into the intersection and got right up to the driver doing the blocking and looked at her while everyone else honked. I finally got through. We need something like NYC - $300 fine for blocking the "box."