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Old April 24th, 2013, 12:36 PM   #481
Exethalion
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When I looked at this on google maps in more detail, I was amazed at the sheer length of the Yamate tunnel which this junction serves. For an urban expressway tunnel, that thing is amazing. When fully complete it will be the longest road tunnel in Japan.
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Old April 24th, 2013, 01:04 PM   #482
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The Yamate Tunnel is currently being extended southeast to the Bayshore Route. That should add another 8 kilometers or so to its length.

The extension will open in March 2014, bringing the total length of the Yamate Tunnel to circa 19.5 kilometers, by far the longest twin-tube road tunnel in the world.

I haven't found official statistics about the exact length though.
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Old April 26th, 2013, 09:19 PM   #483
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Tokyo-Gaikan Expressway

The Tokyo-Gaikan Expressway is the third beltway of Tokyo.



They haven't done much work on it in the last 20 years, except for as short 4 km segment in 2005. Most priority went to the Ken-O Expressway, which is the outer beltway. The Tokyo-Gaikan is about 10 km outside the C2 Central Circular, but 20 km inside the Ken-O.

However, it is a vital link for through traffic, nearly all radial expressways that connect Tokyo to other parts of Japan are most easily reached via the Tokyo-Gaikan Expressway.

While the Ken-O Expressway runs through a mix of developed and undeveloped areas, the Tokyo-Gaikan runs almost exclusively through developed areas, making any extensions rather expensive because a right-of-way has not been preserved.

The planned length of the Tokyo-Gaikan Expressway is 85 kilometers, of which 34 kilometers is open to traffic. The eastern part is currently under construction, either as an elevated expressway or a cut&cover tunnel. This part will open in 2015.

The western and southern segment are much more expensive to construct. No right-of-way is available, and no urban thoroughfare can act as a right-of-way for an elevated expressway. I assume most of it will be constructed in tunnels.
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Old April 27th, 2013, 06:36 PM   #484
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Ken-O expressway

The Ken-O Expressway is an under construction outer beltway of Tokyo. It is the fourth ring road of the metropolitan area and runs through a mix of suburbs, golf courses and agricultural areas, though the majority is fairly populated.



Being an outer ring road, it has mostly 4 lanes. Most of the Ken-O Expressway was built after 2000, but it also incorporated some stretches that were bypasses, built as far back as the mid-1980s.

The Ken-O Expressway is not a full loop, although it does come close. The southern part is not linked because of the very high cost to cross the Tokyo Bay. This route can be driven via the Aqua Line and Bayshore Route. The Ken-O Expressway has a length of 300 kilometers, but it takes about 350 kilometers to drive it once completed.

Most, if not all of the remaining segments of the Ken-O Expressway are currently under construction. The longest missing links are north and east of Tokyo. The northern route will be completed by the end of this year or in 2014, the eastern part near Narita Airport will likely be completed by 2015.

A small southern part near Yokohama will also be completed by 2015, 70% of this route runs underground. Most of the northern beltway is elevated, the eastern beltway is mostly at-grade. The western part has several tunnels.
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Old May 14th, 2013, 10:35 PM   #485
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Ken-O expressway

http://www.e-nexco.co.jp/pressroom/p...nto/h25/0509b/

E-NEXCO released some preliminary traffic data of the newly opened segment of Ken-O Expressway southeast of Tokyo.

Traffic volumes were highest during the weekends. Workday volumes were between 5200 - 8900 to 8900 - 15700 vehicles per day, depending on the segment (it's 43 kilometers long with several interchanges). The weekend volumes were between 9700 and 17500 vehicles per day.

It's lightly used for now, also because this is the most rural part of the Ken-O Expressway, with very few through traffic due to its position on a peninsula. I'm sure the western and northern parts of the Ken-O Expressway will see considerably more traffic.
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Old May 15th, 2013, 02:04 AM   #486
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Old May 15th, 2013, 11:42 AM   #487
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Location:
http://goo.gl/maps/oRjxk

Interestingly the urban arterial running on the lowest level is actually wider (2x3) than the expressway on top of it (2x2).
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Old May 15th, 2013, 04:10 PM   #488
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Just a Turbine Interchange...

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Old May 24th, 2013, 10:50 PM   #489
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Quote:
Originally Posted by ChrisZwolle View Post
25 May 2013

A 4 kilometer extension of the Route 2 of the Hanshin Expressway network in Osaka opens to traffic. It's a four-lane expressway that follows the Yodo River from Route 5 (Bayshore Route) to Route 3 (Kobe Route). It's partially underground.


The interchange with Route 3 is quite spectacular with large and tall flyovers. Only the first phase of the interchange opened to traffic, allowing traffic from Route 3 south to Route 2 west and vice versa.





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Old May 25th, 2013, 06:55 PM   #490
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Gotta love the new Route 2 / Route 3 interchange in Osaka (see previous post)

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Old May 25th, 2013, 07:03 PM   #491
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Wow, so impressive. Thx ChrisZwolle.
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Old June 11th, 2013, 09:49 AM   #492
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Quote:
Originally Posted by ChrisZwolle View Post
Gotta love the new Route 2 / Route 3 interchange in Osaka (see previous post)

it so very impressive
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Old September 8th, 2013, 11:04 AM   #493
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Tokyo 2020

Tokyo won the bid for hosting the 2020 Summer Olympics.

Several upgrades of road infrastructure is already ongoing to support the 2020 Olympics. These projects will be completed years before the actual Olympics, so there is little reason to worry they won't be completed on time.

table:


The most prominent expressway projects are the extension of the Yamate Tunnel (19.3 km, twin-tube) by 2013 or 2014. This will complete the Central Circular, which is the second ring road of Tokyo. It will reduce through traffic in central Tokyo.

Another project is the extension of Route 10 of the Shuto Expressway to the Olympic Village. This project is also under construction.



A map of the planned improvements.


#7 is the Yamate Tunnel of the Central Circular, which is being extended to the Bayshore Route. #8 is the extension of Harumi Route (Route 10 of the Shuto).

#14 & 15 is a new arterial road that connects to the Shinjuku Route (#4 of the Shuto). Some land acquisition has begun in 2012.

#9 is the upgrade of an arterial to 4 lanes. This should be completed by 2016.

#11 is the construction of a new 4-lane route across the Tokyo Bay. This project was completed in 2012 with the opening of the Tokyo Gate Bridge

close up:


#12 is the construction of a new 4-lane arterial to the Olympic Village. Land acquisition for this project is well underway.
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Old October 19th, 2013, 11:20 PM   #494
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Akita Expressway

Some changes coming to the Akita Expressway in northern Honshu. A new stretch of expressway from Odate-kita IC to Kosaka JCT with the Tohoku Expressway will open on November 30th. This stretch is not connected to the existing Akita Expressway.

The Kotooka-Noshiro Road will become a part of the Akita Expressway. It already is an expressway-standard road with interchanges and 1x2 / 2x2 lanes like the rest of the Akita Expressway. This extends the Akita Expressway by 34 kilometers, plus the 16 kilometer new alignment near Odate.

The missing link from Futatsui to Odate will be constructed at a later stage. A new road is already under construction from Odate-Noshiro Airport to Odate, which may become part of the Akita Expressway.

New route of the Akita Expressway:
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Old January 1st, 2014, 05:33 PM   #495
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2013 openings

171 kilometers of new expressway opened in Japan in 2013, to my best knowledge. This would put the Japanese expressway length at 10,660 kilometers, however this figure does include some expressways that are only single lane.

A number of expressway segments were planned to open in 2013, I could not find whether these actually opened, or were postponed to 2014.

These expressways were planned to open in 2013:

* Kisei Expressway (Kii-Nagashima - Miyama)
* Higashi-Kyushu Expressway (Kitakyushu Airport - Yukuhashi)
* Onomichi Expressway (Sera - Miyoshi JCT)
* Keinawa Expressway (in Koriyama)
* Keinawa Expressway (Katsugari - Uchita)
* Route 3 (Hiroshima Expressway)

The current status of those is unknown. Japanese Wikipedia is not updated at this point.
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Old January 18th, 2014, 04:28 PM   #496
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Tokyo

Edobashi JCT

image hosted on flickr

Marunouchi & Chiyoda aerial view by Sandro Bisaro, on Flickr


Nishishinjuku JCT

image hosted on flickr

Tokyo Highways by Sandro Bisaro, on Flickr
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Old February 1st, 2014, 12:58 PM   #497
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Tokyo

image hosted on flickr

Rainbow Bridge and Hamazakibashi JCT by Sandro Bisaro, on Flickr

image hosted on flickr

WRITTEN IN LIGHTS by ajpscs, on Flickr

image hosted on flickr

Hamasakibashi v5 by kbaranowski, on Flickr

image hosted on flickr

Sumida / Horikiri JCT / Kosuge JCT by Sandro Bisaro, on Flickr
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Old February 17th, 2014, 10:27 PM   #498
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Old February 21st, 2014, 03:51 PM   #499
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upcoming expressway openings

Traditionally, March is a month with many new expressway openings in Japan and 2014 is no exception.

Kisei Expressway
* Kii-Nagashima - Miyama (15 km): 30 March 2014

Higashi-Kyushu Expressway
* Kitaura - Sumiemachie (6 km): 8 March 2014
* Hinata - Tsuno (20 km): 16 March 2014
* Kitakyushu Airport - Yukuhashi (8 km): 23 March 2014

Keinawa Expressway
* Katsuragi - Kinkawa (13 km): 30 March 2014

Onomichi Expressway
* Kisa - Mitsugihigashi JCT (10 km): 30 March 2014

Hiroshima Expressway, Minami Route
* Yoshi - Kanonmachi (3 km): 23 March 2014

Sanriku Expressway
* Rikuzentakata - Kayooka (4 km): 23 March 2014

San-in Expressway
* Yusato - Iwami-Fukumitsu (6 km): 15 March 2014
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Last edited by ChrisZwolle; February 21st, 2014 at 04:14 PM.
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Old May 28th, 2014, 10:00 PM   #500
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Ken-O Expressway

So Japan is nothing like Texas, right? Or is it...

Ken-O / Tohoku interchange north of Tokyo.

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