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Old April 28th, 2015, 08:36 PM   #10501
ChrisZwolle
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Interstate 635, Dallas

The LBJ Express project is really taking shape now.

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Old April 28th, 2015, 09:41 PM   #10502
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I-5 in Downtown Seattle, Part 1

And here's part 2, I-5 from Yesler Way to the Convention Center/Freeway Park Lid in Downtown Seattle.

James Street underpass (from above)


I-5 from Columbia Center by SounderBruce, on Flickr

Madison Street


I-5 southbound from Madison Street by SounderBruce, on Flickr


I-5 southbound from Madison Street by SounderBruce, on Flickr


I-5 northbound from Madison Street by SounderBruce, on Flickr


I-5 northbound from Madison Street by SounderBruce, on Flickr


I-5 from 7th & Columbia by SounderBruce, on Flickr


I-5 southbound from Madison Street by SounderBruce, on Flickr


I-5 northbound from Madison Street by SounderBruce, on Flickr

Spring Street


I-5 northbound from Spring Street by SounderBruce, on Flickr


I-5 southbound from Spring Street by SounderBruce, on Flickr

Stay tuned tomorrow for Part 3: I-5 between downtown and Capitol Hill.
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Old April 28th, 2015, 10:07 PM   #10503
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I-5 has 4 reversible lanes. I believe this is the widest reversible lane setup in the world. Only a few facilities have more than 2 reversible lanes.

Traffic flows have gotten more diverse over the years. The inbound a.m. and outbound p.m. flows aren't as dominant as they used to be. They plan to replace the I-45 reversible lane in Houston with two tolled express lanes each way, because there is almost as much traffic outbound as inbound at the a.m. rush hour.

Reversible lanes are pretty rare in Europe. Only a handful of facilities exist on freeways / motorways, most are on urban arterials.
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Old April 28th, 2015, 10:18 PM   #10504
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Quote:
Originally Posted by ChrisZwolle View Post
I-5 has 4 reversible lanes. I believe this is the widest reversible lane setup in the world. Only a few facilities have more than 2 reversible lanes.

Traffic flows have gotten more diverse over the years. The inbound a.m. and outbound p.m. flows aren't as dominant as they used to be.
It's much worse in Seattle, where commute patterns go in both directions (people living in the suburbs and working in downtown; people living in downtown and working in the suburbs). Often times, you can see congestion in the reverse-peak direction while the peak direction is flowing smoothly because of the express lanes.

The other set of reversible express lanes in Seattle (on I-90) are being removed and replaced with light rail sometime in the next few years.
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Old April 29th, 2015, 01:15 AM   #10505
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The other set of reversible express lanes in Seattle (on I-90) are being removed and replaced with light rail sometime in the next few years.
That will be a disaster for traffic on I-90.
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Old April 29th, 2015, 01:29 AM   #10506
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That will be a disaster for traffic on I-90.
WSDOT is replacing the lane capacity with two new HOV lanes by narrowing the existing lanes. It won't do a thing to capacity and will probably improve traffic by removing the buses that use the lanes during rush hour.
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Old April 29th, 2015, 01:51 AM   #10507
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Goethals Bridge over the Kill Van Kull


Goethals Bridge Westbound in Staten Island
by Nexis4Jersey09, on Flickr

Work on the New Goethals Bridge


New Goethals Bridge Construction
by Nexis4Jersey09, on Flickr
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Old April 29th, 2015, 01:57 AM   #10508
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Originally Posted by Innsertnamehere View Post
Hmm it seems the 401 may finally be overtaken by this project, certainly on the widest highway title.
We will need to make sure MTO has more lanes on the Mid-Pen and GTA West roads to keep up
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Old April 29th, 2015, 06:04 AM   #10509
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Quote:
Originally Posted by SounderBruce View Post
WSDOT is replacing the lane capacity with two new HOV lanes by narrowing the existing lanes. It won't do a thing to capacity and will probably improve traffic by removing the buses that use the lanes during rush hour.
So I'm guessing the car lanes won't be Interstate-standard anymore once this happens.
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Old April 29th, 2015, 06:38 AM   #10510
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Verrazano Narrows Bridge


Verrazano Narrows Bridge in New York City
by Nexis4Jersey09, on Flickr


Verrazano Narrows Bridge in New York City
by Nexis4Jersey09, on Flickr


Verrazano Narrows Bridge in New York City
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Old April 29th, 2015, 11:06 AM   #10511
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HOV lanes are overrated anyway. They don't meet their intended goal: reducing the amount of vehicles. The majority of HOV lane users are families who would travel together regardless of HOV lane existance. That's why HOV lanes are often jammed up too, and don't meet federal standards regarding operational speed.

It's well justified to introduce HOT lanes with a HOV 3+ restriction on former HOV 2+ lanes. It results in a better traffic flow and higher throughput because with dynamic pricing it can operate just under the congestion threshold, which results in the highest amount of vehicles per hour possible. It also gives people an option if they are in a hurry.
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Old April 29th, 2015, 12:11 PM   #10512
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I-10 Katy Freeway, Houston, TX

The concrete jungle of Houston!

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Old April 29th, 2015, 11:47 PM   #10513
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Houston

The massive reconstruction project that is proposed for the Downtown Houston freeway system.



Screencaps:

The I-10/45 interchange.


The I-10/69 interchange


The I-45 North Freeway (between I-10 and I-610)
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Old April 30th, 2015, 08:03 AM   #10514
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I-5 in Downtown Seattle, Part 2

Part 3 of the series, from the Convention Center lid to Lakeview Boulevard.

Pine Street & Boren Avenue


I-5 southbound from Pine & Boren by SounderBruce, on Flickr


I-5 northbound from Pine & Boren by SounderBruce, on Flickr


DSTT Entrance at Convention Place by SounderBruce, on Flickr

Olive Way


I-5 southbound from Olive Way by SounderBruce, on Flickr

I-5 northbound from Olive Way by SounderBruce, on Flickr


I-5 southbound from Olive Way by SounderBruce, on Flickr

Denny Way


I-5 southbound from Denny Way by SounderBruce, on Flickr


I-5 northbound from Denny & Melrose by SounderBruce, on Flickr

Melrose Avenue


I-5 northbound from Melrose & Thomas by SounderBruce, on Flickr


I-5 from Melrose & Roy by SounderBruce, on Flickr

Lakeview Boulevard


I-5 from Lakeview Boulevard by SounderBruce, on Flickr


I-5 from Lakeview Boulevard by SounderBruce, on Flickr


I-5 from Lakeview Boulevard by SounderBruce, on Flickr
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Old April 30th, 2015, 08:13 AM   #10515
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considering the piece of crap highway the famous 'Alaskan Way' is/was/will be, I-5 is rather impressive!
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Old April 30th, 2015, 03:04 PM   #10516
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Quote:
Originally Posted by Kanadzie View Post
considering the piece of crap highway the famous 'Alaskan Way' is/was/will be, I-5 is rather impressive!
Once the viaduct is down and replaced, the state is probably going up look into replacing parts of I-5 in Seattle. The freeway is already too old and was not built to fit modern traffic patterns (the express lanes are peak direction instead of all day two-way).
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Old May 1st, 2015, 12:49 AM   #10517
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Originally Posted by SounderBruce View Post
Once the viaduct is down and replaced, the state is probably going up look into replacing parts of I-5 in Seattle. The freeway is already too old and was not built to fit modern traffic patterns (the express lanes are peak direction instead of all day two-way).
Well they may have, had they not just spent every dime they had for transportation infrastructure on unearthing Bertha.
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Last edited by sonysnob; May 1st, 2015 at 01:31 AM.
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Old May 1st, 2015, 03:10 AM   #10518
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The massive reconstruction project that is proposed for the Downtown Houston freeway system.
To me, the astounding thing isn't so much the size-- it's why it's so big: they're removing a mile-long section of freeway viaduct and rerouting I-45 around what is now two sides of the triangle around downtown. I never would've predicted such a thing. The routing of I-75 and I-85 together through downtown Atlanta created a topological problem that likely will never be resolved-- I'm amazed that Houston of all places would willing create the same problem. W/e.

So, the 28 lanes depicted in this drawing is actually fairly tame: Seven general lanes and four managed lanes each for both I-10 and I-45, then another four plus two managed lanes for the downtown spur:
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Old May 1st, 2015, 04:04 AM   #10519
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To me, the astounding thing isn't so much the size-- it's why it's so big: they're removing a mile-long section of freeway viaduct and rerouting I-45 around what is now two sides of the triangle around downtown.
Perhaps there is a good reason for it, but that sounds incredibly stupid.
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Old May 1st, 2015, 09:24 AM   #10520
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To me, the astounding thing isn't so much the size-- it's why it's so big: they're removing a mile-long section of freeway viaduct and rerouting I-45 around what is now two sides of the triangle around downtown. I never would've predicted such a thing. The routing of I-75 and I-85 together through downtown Atlanta created a topological problem that likely will never be resolved-- I'm amazed that Houston of all places would willing create the same problem. W/e.
Couldn't agree more. I can't fathom how this would be an improvement.
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