> it all starts getting murky once the road hits capacity limits and people start trying to figure out the best way to optimize their travel times. that actual

> it all starts getting murky once the road hits capacity limits and people start trying to figure out the best way to optimize their travel times. that actually happens sooner when everyone is crawling up each other's asses. once you get that first compression wave due to tailgaters slamming on their brakes then you've started the traffic jam.