I'm not sure this is a bad thing. Often times, traffic jams are caused by not enough spacing, or unobservant drivers resulting in sudden breaking, and a knock-o

I'm not sure this is a bad thing. Often times, traffic jams are caused by not enough spacing, or unobservant drivers resulting in sudden breaking, and a knock-on effect. Would need to simulate to confirm, but I suspect that more vehicles giving enough stopping distance, and accelerating smoothly would improve traffic flow, even with the addition of more defector (defective?) drivers.