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Old April 7th, 2016, 06:08 AM   #1801
stingstingsting
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Quote:
Originally Posted by Sr.Horn View Post
First emergency stop since the opening of the Hokkaido Shinkansen:
How long was this 'slight delay'? I understand JR has already exhausted all possibilities to safely reduce the shortest journey time to 4 hours and 2 minutes, after considerable pressure from the Government to reduce it to under 4 hours.

This must be the inherent risk of running Shinkansen trains on lines concurrently with freight trains, which are less structurally secured than the former. It seems plausible to assume that a metal part from one of the train containers could have easily dislodged itself on the tunnel. After all, containers are continuously transported on a chain from warehouse to freight yards and who knows what would have been picked up along the way. Has this problem happened on the mini-Shinkansen lines before?

I wonder if this is the last of such occurrences. Hopefully they can realise the train-on-train concept very soon. In the meantime, I wonder how this will impact on the Shinkansen's operations and impeccable record on punctuality.
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Old April 7th, 2016, 06:26 AM   #1802
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Quote:
How long was this 'slight delay'?
in the article:
Quote:
Soon after, a signal indicated it was safe to proceed and the train departed, arriving at Okutsugaru-Imabetsu Station only two minutes behind schedule.
The Seikan Tunnel is the only route where shinkansen trains and freight trains share the same track. So this is new territory in terms of operating practice. There are certainly bound to be problems in the future, hopefully nothing resulting in human injury.
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Old April 7th, 2016, 08:19 AM   #1803
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Quote:
Originally Posted by k.k.jetcar View Post
in the article:


The Seikan Tunnel is the only route where shinkansen trains and freight trains share the same track. So this is new territory in terms of operating practice. There are certainly bound to be problems in the future, hopefully nothing resulting in human injury.
Pity they can't operate them in 'windows' eg overnight for freight only
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Old April 7th, 2016, 08:46 AM   #1804
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My apologies. After fully reading the article I realise that, rightly so, there was quite a bit more of alarm (journalistic licence considered) :

Quote:
Although Shin-Hakodate-Hokuto Station in Hokkaido is still in a celebratory mood with many residents gathering to see the new bullet trains, some passengers said they were alarmed to hear what happened.

“I am expecting a service that operates exactly on time. It is very scary that there are troubles inside the Seikan Tunnel,” said a 62-year-old office worker from Sakura City, Chiba, on a business trip to Shichinohe Towada Station in Aomori Prefecture.

Forty-nine-year-old Takao Yoshida, an office worker from Hakodate City, said travelers will avoid the bullet train if there is a single major accident. He called for efforts to prioritize safety.
Two minutes might not seem much outside Japan where the average delay is calculated in seconds. In Sydney, intercity trains are considered to be on-time if they are under six minutes late . I wonder if that Hayabusa service no. 22 arrived in Tokyo late.

I am guessing that there would have been significant flow-on effects further down the line. This is considering the tight operations on the Tohoku Shinkansen, interwoven with the mini-Shinkansen operations as well as Joetsu and Hokuriku lines closer to Tokyo. And I presume that the effects of an emergency brake at 140 km/h would not be as bad as an emergency brake at 360km/h (or 260 km/h in the Seikan Tunnel as envisaged). There have thankfully not been any passenger fatalities due to collisions or derailments.

Indeed the Seikan Tunnel operations are new territory. The closest comparison would be with the Channel Tunnel between the UK and France. Yet the Seikan Tunnel, the older of the two, is quite different, the big difference being that both tracks share the same bore. This unfortunately increases the risks exemplified by this recent incident and also complicates future attempts at increasing maximum line speed.

I personally find the Hokkaido Shinkansen to be very interesting considering the many challenges being faced. You have the mountainous terrain that Japan is characterised by, the extreme snow and ice conditions of Hokkaido and also all the challenges within the retrofitted Seikan Tunnel. Then there is also this big seemingly-political end-goal of reducing the Tokyo-Sapporo journey time to under 4 hours, thereby achieving a significant end-to-end modal shift.

By comparison when the Shinkansen south of Tokyo was gradually extended with the Sanyo and Kyushu lines, I do not think it was done primarily to reduce Tokyo-Kagoshima journey times, albeit a significant gain. After all, there is no direct Nozomi service between Tokyo and Kagoshima-Chuo, which is a comparable distance with Tokyo and Sapporo. Also, the new Hokuriku Shinkansen was not built for super-high speeds. The Hokkaido Shinkansen will however have a direct Tokyo-Sapporo service, a distance of over 1000 km. This is isn't a simple and gradual extension of the line to connect more urban areas as time goes by, as it usually has been.

Japan's Shinkansen network seems to increasingly be entering 'new territory' which is great because it shows how Japan is constantly on the forefront with rail technology and innovation. The recent issues with the Nagasaki Shinkansen and the Gauge Change Train is another example, as is the to-be-decided extension of the Hokuriku Shinkansen and the route, method and standard to be chosen.

Shinkansen lines were mainly both grade-separated and network-separated lines, which reduced risks. It will be sad to see the famed reliability and safety of the Shinkansen become diminished what with Shinkansen and zairaisen becoming more and more intermingled. Incredible reliability and safety are what greatly differentiate the high-speed rail systems of Japan with those of the rest of the World.
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Old April 7th, 2016, 02:19 PM   #1805
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This emergency brake inside Seikan Tunnel would be an advert to JR Hokkaido and JR Kamotsu to introduce the Train-on-Train as soon as possible.

Freight trains and high-speed trains in the same track is a bad combination. Even in Japan, there have been several accidents involving passenger trains due to debris left by freight trains. Even at 140 km/h, this small piece of metal on the tracks could have derailed the Shinkansen train.
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Old April 12th, 2016, 08:56 PM   #1806
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GENBI SHINKANSEN presentation



Today has presented the GENBI SHINKANSEN at Echigo-Yuzawa station. This is a six-car set rebuilt from former Akita Shinkansen trainset R19 at Kawasaki Heavy Industries in Kobe as an excursion train named Genbi Shinkansen ("contemporary art shinkansen") for use on the Joetsu Shinkansen between Echigo-Yuzawa and Niigata, mostly at weekends, entering service from 29 April 2016. The exterior livery was designed by photographer Mika Ninagawa.


Car 11


Car 12


Car 13


Car 13


Car 14


Car 15


Car 16

Source: http://rail.hobidas.com/blog/natori/.../04/12_26.html



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Old April 12th, 2016, 11:18 PM   #1807
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A neat 30 minute piece on NHK World about the Chuo Shinkansen Maglev line under construction:

http://www3.nhk.or.jp/nhkworld/en/vo.../20160408.html

Available until April 21st.

Quote:
Traveling at 500km/h, the Superconducting Maglev will connect Tokyo to Nagoya in just 40 minutes and is planned to begin commercial service in 2027. To achieve such extreme speeds, magnetic levitation is used to lift the train 10cm above the guideway. See the cutting-edge technology used to safely operate ultra-high speed services, and experience the world of 500km/h rail travel as we report from the 42km-long Yamanashi Maglev Test Line.
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Old April 14th, 2016, 08:16 PM   #1808
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Powerful and shallow earthquake hits Kumamoto prefecture in Kyushu, a bullet train 800 series "Tsubame" derailed:



More than 30 replies felt from the first at 21:26 JST



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Old April 15th, 2016, 01:09 AM   #1809
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This was the third derailment of Shinkansen since 1964.
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Old April 15th, 2016, 03:39 AM   #1810
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Quote:
Originally Posted by Sr.Horn View Post
Powerful and shallow earthquake hits Kumamoto prefecture in Kyushu, a bullet train 800 series "Tsubame" derailed
Thankfully the other operational trains did not derail and thankfully that specific Tsubame was stationary and was not operational, as I have read. The UrEDAS system is demonstrably effective and so there should not be too much worry about casualties with derailments. I think derailments when stationary and some damage to structures will always be inevitable, especially with strong earthquakes. Derailment at speed, however, would certainly be much more catastrophic.

OT but apparently the only two operational nuclear reactors 120 km south in Sendai (Kyushu) reported no problems, according to the authorities... Lets hope this stays so. My thoughts go to all those affected.

Here's a something I read a while back on UrEDAS undoubtedly saving thousands of lives during the devastating Tohoku Earthquake. You've really got to take your hats off to the people who developed this.

From Railway Technology:

Quote:
http://www.railway-technology...122751/

How Japan’s Rail Network Survived the Earthquake

28 June 2011
Elisabeth Fischer

The earthquake and tsunami that devastated Japan in March 2011 threw the country's rail network into complete chaos.



A brief 12-15 seconds before a massive earthquake of 8.9 magnitude hit mainland Japan on the afternoon of 11 March 2011, a seismometer at Kinkazan belonging to the country's eastern rail operator JR East sent an automatic stop signal to the Shinkansen - Japan's high-speed bullet train - electric power transmission system, triggering the emergency brake on 33 trains.



Industry experts agree that critical damage and, more importantly, great sorrow was averted due to the installation of such seismometers - the one at Shinkansen is one of nine along the Pacific coast - alongside the completion of anti-seismic reinforcement works such as quakeproof structures and anti-derailing systems that were undertaken based on the experience of the 1995 Great Hanshin-Awaji and 2004 Niigata Chuetsu earthquakes.


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Last edited by stingstingsting; April 15th, 2016 at 03:43 AM. Reason: Sorry wrong source
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Old April 15th, 2016, 03:56 AM   #1811
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According to news reports, the shinkansen trainset that derailed was a six-car unit which was out of service, and making a run from Kumamoto station to the Kumamoto Rolling Stock Depot. The train derailed at a speed of 80km/h, with all cars derailing (though from pics all remained upright).

Also, in the vicinity of Shin Tamana Station, two trains were halted. Around 100 passengers were stranded, but a portion of them were able to walk on the tracks to Shin Tamana Station. Another train in a different section was halted by the earthquake, but was able to make it to the nearest station to unload passengers.
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Old April 15th, 2016, 07:00 AM   #1812
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I stopped by Sendai again because I need to attend a meeting on the Kumamoto earthquake, and I found the station selling Hokkaido Shinkansen goods lol



want some Shinkansen cheesecake?

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Old April 15th, 2016, 09:17 AM   #1813
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"White black thunder" candy bars? Another variation of the popular value leader...
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Old April 15th, 2016, 02:57 PM   #1814
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Quote:
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"White black thunder" candy bars? Another variation of the popular value leader...
A potent rival against the "white couple" champions that dominate the northern island.
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Old April 15th, 2016, 07:50 PM   #1815
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Shinkansen derailment due to recent quake

[img]http://media.***********.com/photos/an-aerial-view-shows-a-derailed-kyushu-shinkansen-or-bullet-train-in-picture-id521274092[/img]

http://www.***********.se/detail/nyh...oto/521274166#
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Old April 15th, 2016, 11:34 PM   #1816
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Another angle:


Interesting how the pantograph is bent but the catenary looks fine...
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Old April 16th, 2016, 02:57 AM   #1817
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Kyushu Shinkansen is out of operation yet?

I believe JR Kyushu will introduce a "Relay Shinkansen" in Kagoshima Main Line until the repairs of Shinkansen tracks finish.
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Old April 16th, 2016, 11:09 AM   #1818
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The entire section of the Kyushu Shinkansen (Hakata - Kagoshima-chuo) remains suspended.

As for the zairaisen lines:
Kagoshima Line: Arao~Yatsushiro
Nippo Line: Unoshima~Nobeoka
Kyudai Line: Kurume~Oita
Hohi Line: Kumamoto~Oita
Misumi Line: Uto~Misumi
Hisatsu Line: Yatsushiro~Yoshimatsu

https://www.jrkyushu.co.jp/english/pdf/160416_en_04.pdf
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Old April 16th, 2016, 12:51 PM   #1819
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With the new, even bigger earthquake it will probably take longer to reopen the tracks. With even more inspections of all the infrastructure needed to find any damage on top of repairing the derailment damage before restarting the trains.
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Old April 17th, 2016, 11:50 PM   #1820
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I wouldn't be surprised that it won't be until sometime late this fall that Kyushu Shinkansen resumes operations between Hakata and Kagoshima-Chuo Stations. The line south of Kurume Station contains a LOT of tunnels and all of them have to be checked--along with track replaced--before service can resume.
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