I know of a couple in NSW: one in Albion Park, and another in Bomaderry. They work well when the peak-hour traffic tends to block some of the entrances. You ca

I know of a couple in NSW: one in Albion Park, and another in Bomaderry. They work well when the peak-hour traffic tends to block some of the entrances. You can use the lights to allow the blocked entrances to flow, then turn the lights off out of peak-hour.