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Cars travel in 2-dimensions; trains only in 1

 
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jabailo



Joined: 20 Mar 2006
Posts: 1273
Location: Kent (East Hill), WA

PostPosted: Sat Mar 10, 2012 9:49 pm    Post subject: Cars travel in 2-dimensions; trains only in 1 Reply with quote

The problem with linear highways and urban radial highways is they ignore the 2-dimensional nature of car travel and try to make cars into trains, a 1-dimensional technology.

Under the highway system, all cars linearly “get switched” onto the main line and then get one behind the other — like the coupled cars of a train — and head off to the same centralized location.

So, of course there are “traffic jams” — but only in the way that trains must wait for each other to move (like trains heading into the Penn Station tunnel in New York, or on occasion, the Sounder) and get stuck waiting for one another.

I was traveling to Denver today, and from the window of my Southwest 737, it occurred to me — nature builds cul de sacs, not highways. Nature is fractal in nature, when it needs to traverse an area it does it most efficiently — with branching structure.

https://lh4.googleusercontent.com/-9Frb9ifutrA/T1w6PkId7-I/AAAAAAAAAk4/KLiEjjbweDc/s640/IMG_20120310_130001.jpg

So, too, the best way to use cars is in a branching, 2-dimensional style.

Gridded streets, and linear highways heading to a single centrally dense location — belong to the outdated, 1-dimensional technology of rail.
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brian-hansen
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PostPosted: Sat Mar 10, 2012 10:37 pm    Post subject: Reply with quote

Where does snow go? Downstream.
Where do we go, when we drive? Everywhere.
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jabailo



Joined: 20 Mar 2006
Posts: 1273
Location: Kent (East Hill), WA

PostPosted: Mon Apr 02, 2012 9:13 pm    Post subject: Reply with quote

You seem to have taken a wrong turn on your way to Poems and Lyrics.

Or do the categories go by the wayside when the proof hits 20.
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brian-hansen
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PostPosted: Mon Apr 02, 2012 9:38 pm    Post subject: Reply with quote

Nature build pathways down for rain, which, when combined, look like branching structures up.

Water doesn't go to all the other branching structures. It only goes down.
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jabailo



Joined: 20 Mar 2006
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Location: Kent (East Hill), WA

PostPosted: Tue Apr 03, 2012 9:27 am    Post subject: Reply with quote

My brain, fed by blood in capillaries, tells me you don't have the whole story.
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brian-hansen
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PostPosted: Tue Apr 03, 2012 9:50 pm    Post subject: Reply with quote

Perhaps you'll want to use the flow of blood through capillaries as your transportation metaphor, because landscapes shaped by water erosion seem inapt.

It seems to me to be the ultimate example of the 1-dimensional travel you are trying to counter. From any given point, water flows on only one particular path. Flows combine to make wide flows. A river is a traffic jam of water from multiple tributaries; a multi-lane highway, heading to one central location, the ocean.

In other words, for each drop of rain on a landscape, it can only go to one location, and only by a single path. That's why I think of that path as 1-dimensional.

And why you have to be so rude to me is beyond my understanding. I will not tolerate much more.
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jabailo



Joined: 20 Mar 2006
Posts: 1273
Location: Kent (East Hill), WA

PostPosted: Tue Apr 03, 2012 11:28 pm    Post subject: Reply with quote

The fact that I countered your argument two posts after the point where you may have taken umbrage leads me to be suspect.

The b tree spreads on a two dimensional plane...optimally covering it, giving each leaf node maximum land and privacy.

Cars need only go where they need to go...hence the brilliance of the cul de sac.
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