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Lord Percy
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Joined: 03 Aug 2012
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PostPosted: 19:26 - 25 Feb 2017    Post subject: Traffic Waves Reply with quote
Currently studying this in one of my uni modules.

Traffic Waves.

Lengthier explanation here.

Turns out there's a mathematical formulation for those phantom pile-ups that sometimes happen on the motorway.

It's also why some stretches of road have a variable speed limit. There's a relationship between traffic density and the optimum speed for getting cars through.

So speed limits aren't just about saving kittens. Science Cool

Last edited by Lord Percy on 12:01 - 26 Feb 2017; edited 1 time in total
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Ste
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Joined: 01 Sep 2002
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PostPosted: 19:31 - 25 Feb 2017    Post subject: Reply with quote
Congratulations, welcome to more than twenty years ago. Razz
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Lord Percy
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PostPosted: 19:33 - 25 Feb 2017    Post subject: Reply with quote
Ah, Ste already knows about traffic waves so the entire of humanity must know about them too.
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Itchy
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PostPosted: 19:39 - 25 Feb 2017    Post subject: Reply with quote
https://fat.gfycat.com/InconsequentialThatInvisiblerail.webm
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M.C
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PostPosted: 19:48 - 25 Feb 2017    Post subject: Reply with quote
Ste wrote:
Congratulations, welcome to more than twenty years ago. Razz

They wouldn't be teaching people old hat Folded arms
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Rogerborg
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Joined: 26 Oct 2010
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PostPosted: 21:51 - 25 Feb 2017    Post subject: Reply with quote
M.C wrote:
They wouldn't be teaching people old hat Folded arms

Mythbusters covered this: my kids already think it's prehistoric millinage.

After 20 years or so in academia, isn't Percy doing a PhD by now and making his own discoveries? What's he doing "studying" anything?
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CaNsA
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Joined: 02 Jan 2008
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PostPosted: 21:57 - 25 Feb 2017    Post subject: Reply with quote
Rogerborg wrote:
M.C wrote:
They wouldn't be teaching people old hat Folded arms

Mythbusters covered this: my kids already think it's prehistoric millinage.

After 20 years or so in academia, isn't Percy doing a PhD by now and making his own discoveries? What's he doing "studying" anything?


Probs too busy investing in a brand new device called Rainpal to bother studying.
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Rogerborg
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PostPosted: 22:00 - 25 Feb 2017    Post subject: Reply with quote
Nah, he wouldn't invest in anything without doing a SurveyMonkey first.
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Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike
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Lord Percy
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PostPosted: 22:53 - 25 Feb 2017    Post subject: Reply with quote
Rogerborg wrote:

After 20 years or so in academia, isn't Percy doing a PhD by now and making his own discoveries? What's he doing "studying" anything?



Into the 4th year of it now (so that's 3rd year of the physics malarkey - remember one year was added due to China scholarship). One more year after this and then I'm jumping ship. Masters is the meal ticket*. Absolutely zero interest in PhD stuff. It's too much of a niche to boast on a CV and would only prolong the inevitable boot back into the adult world.

* To combat the brain-drain of their own best-educated fleeing to the west, the Middle Kingdom has just opened up its job market to all postgraduate-certified foreigners who are within one year of having left uni.
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Rogerborg
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Joined: 26 Oct 2010
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PostPosted: 23:58 - 25 Feb 2017    Post subject: Reply with quote
Lord Percy wrote:
Into the 4th year of it now

The Einsteinian sections must be a breeze given that you're travelling at relativistic speeds.
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Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike
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Pjay
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Joined: 18 Jan 2016
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PostPosted: 00:29 - 26 Feb 2017    Post subject: Reply with quote
M.C wrote:
They wouldn't be teaching people old hat Folded arms

I'd wager that 'old hat' is taught in every educational facility the world over.
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ScaredyCat
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Joined: 19 May 2012
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PostPosted: 01:06 - 26 Feb 2017    Post subject: Reply with quote
https://www.traffic-simulation.de/
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DrDonnyBrago
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PostPosted: 13:53 - 26 Feb 2017    Post subject: Reply with quote
Even the Welsh know this.
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Kawasaki Jimbo
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Joined: 09 Oct 2015
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PostPosted: 18:58 - 26 Feb 2017    Post subject: Re: Traffic Waves Reply with quote
I wish there was official interest in catching and re-training the dawdling fools on otherwise clear roads who also cause this kind of dangerous tailback. Similarly, the farmers in their tractors on my busy A-road commute at 8:30am. Why go out then!? Instead of being targeted, the slow driver is made to feel virtuous by the safety geeks
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Old Thread Alert!

The last post was made 7 years, 69 days ago. Instead of replying here, would creating a new thread be more useful?
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