My view of jams is they are caused by three expectations drivers have: 1) that the speed limit is still the “minimum speed” recommendation in heavy traffic. I

My view of jams is they are caused by three expectations drivers have: 1) that the speed limit is still the “minimum speed” recommendation in heavy traffic. Ie, if it’s 65, one can still attempt to drive 74. 2) that the left lane is going to be the fastest in heavy traffic and 3) that somehow using the soon-to-be-closed lane in a lane closure/traffic shift scenario is “skipping the line.” In my view if we had adaptable speed limits /expectations of speed, we could probably avoid jams altogether if everyone agreed that 35mph was an optimal speed for heavy traffic. There would be far fewer brake lights and people would have far better reaction times (provided the slower speed didn’t give them false sense of security leading to checking their cell phones). In any case, try this the next time you’re in a jam- move to the right most lane. Not only is everyone around you doing the opposite (trying to go left for fast), but there are also people exiting the highway altogether... creating a slightly faster moving lane.