> If the cars coming towards it just slow down to allow the cars there time to leave, the jam will clear. Yes, but, which problem are you trying to solve? The

> If the cars coming towards it just slow down to allow the cars there time to leave, the jam will clear. Yes, but, which problem are you trying to solve? The thing most drivers want to optimise is door-to-door time: slowing down as a solution is a tough sell!