dooony

Are you ever worried that people with that view (literal and not understanding sarcasm) will see the video and feel emboldened by it?

Hi! I'm a mechanical engineer from Sydney, Australia and find traffic engineering fascinating. Especially how braking downstream can cause traffic jams upstream even when there's no "blockage". Example Can you explain this in more detail and how it is managed?

I have visited Tokyo on a few occasions and always marvel at how well traffic is managed there. At big intersections there are rarely many cars waiting at red lights, but when the light turns green a stream of cars seems to turn up at just the right moment. I imagine they have some very clever algorithm or interconnected system managing traffic flow, but i'm only guessing. Do you know of any examples of any countries or cities who manage traffic really well or interesting systems used around the world?

"HODOR!" Hodor shouted into the well. "hodorhodordhodorhodorhodor," fainter and fainter, "hodorhodorhodorhodorhodor,"

No it happens on highways, the video just demonstrates the effect. Above a certain traffic density, if you slow down a little bit, the guy behind you has to brake a little harder, and the guy behind him a little harder again, until at some point someone has to stop altogether. Hence a traffic jam caused by nothing.