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Old June 4th, 2016, 02:55 AM   #11621
Tom 958
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Quote:
Originally Posted by geogregor View Post
Standard median width is 36 feet (11 meters). Here it is way more.
Quote:
Originally Posted by ChrisZwolle View Post
There are numerous freeway stretches that have a median that's (much) wider than 36 feet, both in forested areas (such as I-64 in eastern Virginia) or on the plains (such as I-25 in Wyoming).
Without attempting to quantify it, I'll assert that a large majority of Interstates have medians of about sixty feet. That was more or less the standard in the sixties and early seventies when most of the system was built. I say "more or less" because different states have different standards: 64 for my own state of Georgia, a bit more for South Carolina, fifty sixish (c/o Google Earth) in Alabama. And in some states with a policy of providing wide medians on Interstates, sixty feet was still the standard for non-Interstate rural freeways.
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Old June 4th, 2016, 05:07 AM   #11622
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Well, the Braess' paradox can occur. So they are partially right about that.
The problem is that NIMBYs see the instances where this happens and assume it means that EVERY new road is a bad thing. Like anything in life poor planning can lead to bad results, but that's a reason for more city planning, not for less infrastructure growth.
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Old June 4th, 2016, 05:55 AM   #11623
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Well it's because of uncontrolled sprawl, I believe.
Or, just maybe, it could be the resulting consequence of very thorough, long term logistical planning that's calculated population growth factors into projects. And we are talking about long term planning that spans for the past 60 years; speaking for DFW.
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Old June 4th, 2016, 06:17 AM   #11624
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Quote:
Originally Posted by browntown View Post
The problem is that NIMBYs see the instances where this happens and assume it means that EVERY new road is a bad thing. Like anything in life poor planning can lead to bad results, but that's a reason for more city planning, not for less infrastructure growth.
This kind of abuse of statistics is very common. Normally a study says "in 60% of the cases, under X circumstances, A causes B, we can say so with 90% certainty". People read "in 100% of the cases, under all circumstances, A causes B, no exceptions, no uncertainty" and quote it all over the internet. It's just impossible to reason with them.
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Old June 4th, 2016, 07:10 AM   #11625
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Quote:
Originally Posted by siamu maharaj View Post
This kind of abuse of statistics is very common. Normally a study says "in 60% of the cases, under X circumstances, A causes B, we can say so with 90% certainty". People read "in 100% of the cases, under all circumstances, A causes B, no exceptions, no uncertainty" and quote it all over the internet. It's just impossible to reason with them.
There is an even worse abuse of statistics by those calculating them: the application of statistics to phenomena which are neither gaussian random nor poisson random, and therefore are undefined. Economists do this all the time and then claim that "it's a good approximation" when it fact it's nonsense.
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Old June 5th, 2016, 01:55 AM   #11626
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There is an even worse abuse of statistics by those calculating them: the application of statistics to phenomena which are neither gaussian random nor poisson random, and therefore are undefined. Economists do this all the time and then claim that "it's a good approximation" when it fact it's nonsense.
Preaching to the choir. I have always maintained that statistics is the biggest fraud in modern history. The fact it's consider science is a mockery of the word science. Statistics can be twisted to come to whatever conclusion you want. It is inherently biased, which is the exact opposite of science.
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Old June 5th, 2016, 03:06 AM   #11627
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Quote:
Originally Posted by siamu maharaj View Post
Preaching to the choir. I have always maintained that statistics is the biggest fraud in modern history. The fact it's consider science is a mockery of the word science. Statistics can be twisted to come to whatever conclusion you want. It is inherently biased, which is the exact opposite of science.
This is completely non-sense. Engineering, Finance, Medicine - none can exist without Statistics.
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Old June 5th, 2016, 04:44 AM   #11628
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This is completely non-sense. Engineering, Finance, Medicine - none can exist without Statistics.
Going way off-topic, so will just say that we're talking about different things.

Let's get back to highways now.
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Old June 9th, 2016, 05:08 AM   #11629
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Old June 11th, 2016, 06:13 AM   #11630
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Question:



Where is the exit for non-carpool vehicles?
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Old June 11th, 2016, 06:37 AM   #11631
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This is kind of random, but I was just watching a recent episode of the animated TV show Archer. There is a scene where the main characters are riding in a convertible on a freeway in Southern California.

The show is known for its elaborate animation and backgrounds that look like they were modeled/photoshopped out of real images, and I spent some time pausing the video on my cable box trying to figure out if it was on a real highway or not based the signs. You know like any normal SSC member would do, lol.

Long story short, I'm pretty sure the animators drove that road and used photos to skin 3d models or whatever for the scene. The sign with 91 pointing towards Artesia is there and so are those mid-rise buildings. Go figure.
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Old June 11th, 2016, 04:35 PM   #11632
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Quote:
Originally Posted by Blackraven View Post
Question:



Where is the exit for non-carpool vehicles?
Katella Avenue or State College Blvd.
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Old June 12th, 2016, 05:03 AM   #11633
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Quote:
Originally Posted by zaphod View Post
This is kind of random, but I was just watching a recent episode of the animated TV show Archer. There is a scene where the main characters are riding in a convertible on a freeway in Southern California.

The show is known for its elaborate animation and backgrounds that look like they were modeled/photoshopped out of real images, and I spent some time pausing the video on my cable box trying to figure out if it was on a real highway or not based the signs. You know like any normal SSC member would do, lol.

Long story short, I'm pretty sure the animators drove that road and used photos to skin 3d models or whatever for the scene. The sign with 91 pointing towards Artesia is there and so are those mid-rise buildings. Go figure.
They also did a very good job in another episode where the titular character has to travel from Montreal to New York City with rather accurate signs for Quebec and New York highways, and an Ontario sign there for some reason. Even the font was pretty close.
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Old June 12th, 2016, 06:58 AM   #11634
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Old June 12th, 2016, 09:13 AM   #11635
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I thought that the roads here in WA were ugly, but I guess California has us beat.

The pics are great though.
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Old June 12th, 2016, 07:40 PM   #11636
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it's just the signs that start to turn black...
but I wonder if its pollution or that the dry air is making the signs hold up longer than up north, and they're actually original?
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Old June 13th, 2016, 07:14 AM   #11637
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Old June 13th, 2016, 07:55 AM   #11638
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Quote:
Originally Posted by Kanadzie View Post
it's just the signs that start to turn black...
but I wonder if its pollution or that the dry air is making the signs hold up longer than up north, and they're actually original?
There are grooves all over the concrete that have permeated into the paving. The quality looks very bad in comparison to the road in the post above me from Arizona.
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Old June 13th, 2016, 12:46 PM   #11639
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The grooves are from rather coarse diamond grinding of the concrete surface, to smooth over wear and increase grip. It doesn't look pretty but is important on CA's heavily used highways.
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Old June 13th, 2016, 10:39 PM   #11640
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Quote:
Originally Posted by Exethalion View Post
The grooves are from rather coarse diamond grinding of the concrete surface, to smooth over wear and increase grip. It doesn't look pretty but is important on CA's heavily used highways.
Actually, those grooves look like they were made when the concrete was poured and are there to provide additional traction when it rains. Water on smooth concrete is a recipe for disaster. The only real issue with this type of grooving is an increase in road noise.

Quote:
Originally Posted by Xusein
There are grooves all over the concrete that have permeated into the paving. The quality looks very bad in comparison to the road in the post above me from Arizona.
That's like comparing apples to oranges. Asphalt roads, like those in the Arizona pictures, do not need to be grooved because of their porous nature.
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