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VIDEO: Traffic jam shockwave recreated in experiment

Posted March 21, 2008 11:42 AM

From Autoblog:

Shockwave traffic jams -- the kind where you slow down and speed up (with others behind you doing the same thing) -- have finally been recreated in a controlled environment (woo-hoo!). Theories about the causes of traffic jams have been computer modeled before, but here hasn't been a live demonstration of how a body of traffic goes from highway speeds to a dead stop -- for no apparent reason -- until now.A team of Japanese scientists put 22 cars on a circular track and told them to drive about 20-MPH. Sure enough, a few laps in, uneven gaps appeared between the cars. Then a group of cars got bunched up. The people at the back of the bunch sometimes had to come to a stop. The car at the front of the bunch would lurch away... only to rejoin the back of the bunch on the other side of the circle.Now that the phenomenon has been recreated in "lab" conditions, the greatest minds of our generation can get to fixing it. Or, not really, since the cause of shockwave jams is conclusively shown to be -- tada! -- human error. Some folks just can't go with the flow when traffic needs it most. So while fixing human error might not be on the cards, at least there's some hope now for traffic jams. Watch video of the artificial shockwave traffic jam after the jump.

Read the whole article and watch the video

If the video at Autoblog does not play for you, you can find it here.

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Guru
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#1

Re: VIDEO: Traffic jam shockwave recreated in experiment

03/21/2008 11:54 AM

Ha! This proves what I have known all along; most drivers are clueless!

So clueless that they go through computer modeling to try to understand why.

Now for the second stunning revelation; there is no substitute for common sense. You can get the fastest super computer and still be clueless.

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Anonymous Poster
#2

Re: VIDEO: Traffic jam shockwave recreated in experiment

03/22/2008 9:11 PM

...also called "rubber-banding" the alternating between "stretched out" and "bumper-to-bumber" traffic.

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#3

Re: VIDEO: Traffic jam shockwave recreated in experiment

03/23/2008 6:30 AM

Yup, caused by idiots who treat accelerator and brake as two switches, and can't drive smoothly, don't look far enough ahead, anticipate, or try and keep moving slowly rather than slam on the brakes to a dead stop.
But hey we all know that it's not us that causes it .

I don't cause congestion, it's all the other damn cars!
I wonder if they were on their mobile phones at the same time

Del

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#4

Re: VIDEO: Traffic jam shockwave recreated in experiment

03/24/2008 5:04 AM

It's a combination of "Sunday Drivers", "Road Hogs", and the "MBIF" (Must Be In Front" people.

It does not matter what the traffic is, the results are the same.

Internet packet transmission shows the same results.

Kind Regards....

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#5
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Re: VIDEO: Traffic jam shockwave recreated in experiment

06/10/2009 6:03 AM

Hello glad to see you spark again!

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