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Old December 3rd, 2007, 08:57 AM   #1281
FM 2258
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Quote:
Originally Posted by Alex Von Königsberg View Post
When I lived in Sacramento, I made four round-trips to Los Angeles on I-5 and found the road rather boring and monotonous. Even Nevada's stretch of I-80 with its endless desert did not seem as boring as the Central California's I-5.
Haha, it did look boring on the flat stretch. I think the excitement of being in California for the first time kept me awake.
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Old December 3rd, 2007, 09:03 AM   #1282
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That flat stretch looks kinda old with those concrete plates. The looks reminds me of a 1960's German Autobahn.
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Old December 3rd, 2007, 09:23 AM   #1283
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[IMG]http://i15.************/6yob2xe.jpg[/IMG]

Why do they have those grooves on so many of California's expressways?
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Old December 3rd, 2007, 10:32 AM   #1284
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drainage perhaps? It doesn't look exactly like water-absorbing pavement...
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Old December 3rd, 2007, 02:36 PM   #1285
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Radi mode
The pavement is really crappy! I'm surprised, this is THE road on the West Coast, something like this would be inconceivable in the EU.
End Radi mode
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Old December 3rd, 2007, 03:46 PM   #1286
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Quote:
Originally Posted by wyqtor View Post
Radi mode
The pavement is really crappy! I'm surprised, this is THE road on the West Coast, something like this would be inconceivable in the EU.
End Radi mode
Please change "EU" to "Stroma, God of all that is asphalt and concrete" and only then will it sound like Radi.
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Old December 3rd, 2007, 04:12 PM   #1287
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FM 2258, the interstate on your pics looks really bad, such a motorway wouldn´t be allowed anywhere in europe, the concrete must be really awful to drive on, I am happy we have very smooth asphalt here on the nationalroads, what bothers me msot is that on one of your pics there are aktually potholes on the asphalt which is very bad for a motorway.
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Old December 3rd, 2007, 04:33 PM   #1288
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Originally Posted by radi6404 View Post
FM 2258, the interstate on your pics looks really bad, such a motorway wouldn´t be allowed anywhere in europe,
Yet, Belgium and Germany are full of it.
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Old December 3rd, 2007, 04:47 PM   #1289
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Quote:
Originally Posted by Chriszwolle View Post
Yet, Belgium and Germany are full of it.
Chris, I am not talking about that they used concrete but about the condition of the motorway which isn´t very good. There are parts which are way worse to the very old part of the E79 which I´ve shown here, the old part has rosty crashbarriers and old and already rough asphalt but no potholes and bumps at all.
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Old December 3rd, 2007, 04:50 PM   #1290
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Quote:
Originally Posted by Chriszwolle View Post
drainage perhaps? It doesn't look exactly like water-absorbing pavement...
Certainly not... it's concrete.

I think the sole purpose of those grooves is to incrise friction, to enhance safety.
They could be transversal, and maybe in that case they would help in the drainage, but these longitudinal ones doesn't appear to help much in that...
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Old December 3rd, 2007, 04:52 PM   #1291
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I guess it's a grip thing then... especially in curves with sideward-forces. Flat concrete can be very slippery, even without rain.
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Old December 3rd, 2007, 05:09 PM   #1292
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Originally Posted by ttownfeen View Post
Interstates are expensive to maintain. Plus, the whole bidding-process brings highway maintainance and construction in most areas of the US to a snail's pace. What the country desperately is a revitalized network of regional rail systems.

I don't understand where these car hogs get the idea that driving is fun. I hate driving! You sit in a car for hours and hours while your eyes die from looking at highway and your body cramps from sitting and sitting and sitting. At least on a train or plane you can walk around when it suits your fancy.
Fabulous! This is the first time I saw a comment on SSC by a fellow North American who dislikes the driving culture & Supporting the growth of regional rail systems in North America.

Nevertheless, we must admit that parts of our interstate system is one of the best all around the world. The interchange in Dallas is purely superb.
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Old December 3rd, 2007, 05:11 PM   #1293
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Quote:
Originally Posted by Chriszwolle View Post
I guess it's a grip thing then... especially in curves with sideward-forces. Flat concrete can be very slippery, even without rain.
Exactly--- the speed limit over such interstate portion is comparable to Autobahn, there are more magnificient bank curves over the rugged, open terrain in the Southwest.
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Old December 3rd, 2007, 05:15 PM   #1294
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Originally Posted by LtBk View Post
The Interstates are impressive, its the drivers that makes it suck to drive.
You may say so.
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Old December 3rd, 2007, 05:17 PM   #1295
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I don't know about the flat areas, but most of the I-5 pictures show steep hills, which are simply spectacular, very beautiful!

But here I can agree with some of the previous posters about the condition of this interstate. The pavement quality looks simply horrible in places. But of course, this is an old discussion, and it is no secret that many roads in North America aren't maintained as well as they should be.

EDIT: Especially the pavement in this picture: http://i5.************/6kk7ytg.jpg. Such conditions are simply unacceptable on a major freeway. Reminds me of some sections of the A20 in Quebec, Canada. On Ontario's 400-series I generally have not seen such a bad state of disrepair, but our system is much smaller, and I guess easier to maintain.
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Old December 3rd, 2007, 07:21 PM   #1296
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Quote:
Originally Posted by Chriszwolle View Post
I guess it's a grip thing then... especially in curves with sideward-forces. Flat concrete can be very slippery, even without rain.
Exactly... grip was the word I was looking for. Those groves are made right after the concrete is poured, when it's still workable, and they can be made longitudinally (like in this case) or transversally, and their purpose is to enhance the grip, as completelly flat concrete would be too slipery.

An exaple of transversal grooves on A-66 in Spain:
Quote:
Originally Posted by Stifler View Post
And this is how the concrete looks.
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Old December 3rd, 2007, 08:05 PM   #1297
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I love the sound those grooves make, at least how they sound in the U.S. with that light whistle that always reminds me of a jet plane for some reason.
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Old December 3rd, 2007, 08:14 PM   #1298
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I think the people living near the freeway are not so pleased with the sound

That's why we use PAC in the Netherlands on 90% of our motorways (goal = 100%). It reduces noise quite a lot compared to ordinary concrete.
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Old December 3rd, 2007, 08:23 PM   #1299
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Quote:
Originally Posted by mgk920 View Post
A 10 km long section of I-74 opened on Friday, 2007-11-30, in the area of Maxton, NC.

See:

https://apps.dot.state.nc.us/pio/rel...ls.aspx?r=1448



Mike
Good news.

However...what I don't understand is why NC is calling the highway that they are building "I-74". The completed part of I-74 that we all know about ends in Cincinnati, which is far away from the parts that NC is building and the states in between (Virginia, and I presume West Virginia and Kentucky) are not building their sections anywhere as fast.

I think they will eventually need to change it...it's such a big mistake on the whole numbering system...the number is too high, and it's not going in the right direction (it's supposed to go east-west, not north-south), and there's already a US 74 in North Carolina. Ironically, this highway meets it!

(end roadgeek mode )
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Old December 3rd, 2007, 08:30 PM   #1300
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I thought in North Carolina Interstate 74 was merged with Interstate 73 for a while. I wonder if this part coincides with 73.
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