[fredr123]

Originally Posted by hulkrogan

^ What they're talking about in the article is when a road is operating near or past capacity, and on person slows down for any reason, the person behind them slows even more to make up for the time it took them to react, and it travels back eventually stopping traffic. If you have a road that does not drop any lanes (Crowchild headed away from downtown for instance) you can see this happen every once in a while when someone does something stupid. The more cars on the road, the shorter the following distances, the more this is exagerated. Someone posted up a really cool online model of this once, but I'm not sure where it is.

BlackArcher101: http://forum.calgarypuck.com/showthr...487#post989487