I think the problem in the tollways is that many drivers drive under the speed limit. It's better for regulators to instruct drivers to keep up with the pace. So, if the speed limit is 80, everyone should drive at 80 at least (buses and trucks at 70 or whatever they set). It will lessen accidents tremendously because the flow of traffic is much greater and will free up valuable road space. You will see less cars moving in and out of lanes and force us to be more courteous to drivers switching lanes and teach us to stay in our lanes.