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Old November 9th, 2010, 07:31 PM   #981
mgk920
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Actually, you are not changing lanes in them, it's just that the lane lines are drawn such to channel traffic in the highest-demand directions. The new one at the east end of the College Avenue Fox River bridge here in Appleton (College Ave/John St/Walter Ave) is designed in much the same way and has been operating with beyond impressive fluidity and safety ever since it opened just over a year ago.



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Old November 9th, 2010, 08:40 PM   #982
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Thanks, you were right...I drove through it and, indeed, you're not actually changing lanes
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Old November 10th, 2010, 07:03 AM   #983
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I don't understand why that roundabout even has the single-lane movement.

To me, the one at the other end of the bridge looks more confusing. :P
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Old November 10th, 2010, 08:20 AM   #984
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These have since been renovated since the Google Maps' photo was taken. (You can see the construction taking place in the photo, which is why it looks like a mess.)

The single-lane roundabout was converted to a multi-lane roundabout because of congestion issues.
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Old November 12th, 2010, 10:54 AM   #985
Tom 958
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Quote:
Originally Posted by bmanx06 View Post

These have since been renovated since the Google Maps' photo was taken. (You can see the construction taking place in the photo, which is why it looks like a mess.)

The single-lane roundabout was converted to a multi-lane roundabout because of congestion issues.
The eastern roundabout needs to be a full roundabout because it includes connections to three roads (Burnham Drive, Borgen Blvd, and Centerwood Blvd) as well as the ramps to and from WA 16. But the western one could've been built as one end of a dogbone, since the eastern segment of the circular roadway is useful only for (surely infrequent) turnaround movements. That's true under both the old and the new configurations.
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Old November 13th, 2010, 01:54 AM   #986
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Quote:
Originally Posted by sotonsi View Post
There's thousands of multi-lane roundabouts in the United Kingdom. They aren't dangerous at all if people follow signs and road markings.
We have plenty of multi-lane roundabouts here as well, though the number pales in comparison to the UK...in this case, I was referring to the particular configuration of the roundabout, not multi-lane roundabouts in general. ;-)

Last edited by bmanx06; November 13th, 2010 at 02:02 AM.
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Old November 13th, 2010, 01:58 AM   #987
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Quote:
Originally Posted by Tom 958 View Post
The eastern roundabout needs to be a full roundabout because it includes connections to three roads (Burnham Drive, Borgen Blvd, and Centerwood Blvd) as well as the ramps to and from WA 16. But the western one could've been built as one end of a dogbone, since the eastern segment of the circular roadway is useful only for (surely infrequent) turnaround movements. That's true under both the old and the new configurations.
I agree - the western one could have been built doggy style . (Sorry, had to). But you're right, the eastern bit for turnaround movements is barely used, if at all.
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Old November 13th, 2010, 01:13 PM   #988
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Quote:
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... doggy style .
I will carry that with me for the rest of my life.
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Old December 3rd, 2010, 06:05 AM   #989
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Devil's Slide Tunnel under construction along California's Pacific Coast Highway. This strech of road has long been prone to landslide's one in 1995 closed the PCH for more than 150 day the new tunnel will allow drivers to bypass the slide area. The old highway will be turned into a trail for hikers and bicyclists.








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Old December 3rd, 2010, 10:16 PM   #990
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Awesome! The Devil's slide Tunnel had barely progressed when I saw it on a field trip freshman year at berkeley back in 06. Caltrans needs a new logo. Kind of frivolous I know but I think it can do some good.
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Old December 8th, 2010, 04:57 PM   #991
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Back in my hometown the Kentucky DOT has been relocating US 460 to a new 2x2 divided highway. The old route is 2 lanes, winding and just unsafe with amount of traffic that uses it. Here is a link with maps, photos and timelines.
http://www.us460online.com/index.php
It falls into Corridor Q
http://en.wikipedia.org/wiki/Corridor_Q
It is set to link up with the Coalfields Expressway in Southwest Virginia. The Coalfields Expressway is to connect US 23 in SW Virginia to I-77/I-64 in Beckley, WV. The WV portion of the Coalfields is under construction and some parts already built just South of I-77/I-64 (no interchancge built yet)
Here's a link to the Coalfields Expressway site http://www.coalfieldsexpressway.com/

Then the Coalfields Expressway is set to have an interchange with the proposed King Coal Highway/I-73/I-74
link: http://www.wvkingcoal.com/default.aspx

Also Kentucky has a hard on to build Interstate 66 across the southern tier of the state and this will enter Kentucky in Pike County and flow west. Some parts will have to be built and some parts will utilize existing Parkways. Some of the parkways already have 'Future I-66' signs up.
Heres a link http://www.interstate66.com/

I'm originally from Pike County, Ky and it seems like highway overbuild to a declining population base. Maybe these new highways will open the region up to more business in years to come. It is a scenic area with hiking, white water rafting and just pure wilderness. Maybe it will increase tourism. Who knows. I do have a feeling though I-66 will never get built.
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Last edited by ScraperDude; December 8th, 2010 at 05:03 PM.
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Old December 9th, 2010, 02:15 AM   #992
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Wow impressive cuttings! Didn't know that such projects are going ahead in the USA. Looks almost like some of the constructions in China
http://www.us460online.com/images.php
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Old December 9th, 2010, 08:09 AM   #993
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Quote:
Originally Posted by geogregor View Post

Wow impressive cuttings! Didn't know that such projects are going ahead in the USA. Looks almost like some of the constructions in China
http://www.us460online.com/images.php
Indeed. Large cuts are the norm in the region. The largest cut is this one:http://en.wikipedia.org/wiki/Pikeville_Cut-Through

They relocated 4 highway routes, railroad tacks and the river! The river flooded my hometown often so they decided to reroute it along with the highway traffic and train traffic through the new cut. They in turn took the dirt and stone from the mountain cut and filled in the river downtown to have more room to build. They turned the former railbed into a boulevard.
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Old December 31st, 2010, 12:33 AM   #994
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Nice exit along Arroyo Seco Parkway (California 110) in Los Angeles:


freeway entrance:


Welcome to the Historic Arroyo Seco Parkway.


5 mph exit!


It's basically a right turn like on a residential street...
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Old December 31st, 2010, 12:44 AM   #995
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Those are some hi-quality roads
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Old December 31st, 2010, 12:46 AM   #996
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The Arroyo Seco Parkway (formerly: Pasadena Freeway) was built in 1940 and is now an Historic Landmark. It will be kept in the original state, that's why it looks like a 3rd world freeway.
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Old December 31st, 2010, 12:48 AM   #997
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That sounds like some NIMBY decision
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Old January 1st, 2011, 02:58 AM   #998
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Quote:
Originally Posted by Danielk2 View Post
That sounds like some NIMBY decision
Possibly, but it looks like there's an aqueduct right next to the expressway, so expanding exits is probably not feasible.
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Old January 1st, 2011, 05:09 AM   #999
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Quote:
Originally Posted by ChrisZwolle View Post
The Arroyo Seco Parkway (formerly: Pasadena Freeway) was built in 1940 and is now an Historic Landmark. It will be kept in the original state
Does that preclude basic resurfacing work?
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Old January 1st, 2011, 06:19 AM   #1000
Tom 958
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Quote:
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Does that preclude basic resurfacing work?
And I doubt that those beat-up metal guardrails are original equipment.
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