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Old June 5th, 2013, 08:57 PM   #6021
chornedsnorkack
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Quote:
Originally Posted by hmmwv View Post
and now made moot by the Shanghai-Hangzhou conventional HSR.
The route Shanghai-Nanjing is served by 2 parallel high-speed railways, both designed for 350 km/h or more: Shanghai-Nanjing high speed railway and Shanghai-Nanjing section of Shanghai-Beijing high speed railway. Likewise the route Beijing-Tianjin is served by Beijing-Tianjin high speed railway and by Beijing-Tianjin section of Shanghai-Beijing high speed railway.

Are there any other high speed railways where existing two tracks are insufficient and construction of another parallel high speed railway is necessary?
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Old June 6th, 2013, 12:22 AM   #6022
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1) Tokaido Shinkansen.... The reason they are building a Maglev line in the first place.
2) Paris - Lyon
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Old June 6th, 2013, 12:32 AM   #6023
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Quote:
Originally Posted by chornedsnorkack View Post
The route Shanghai-Nanjing is served by 2 parallel high-speed railways, both designed for 350 km/h or more: Shanghai-Nanjing high speed railway and Shanghai-Nanjing section of Shanghai-Beijing high speed railway. Likewise the route Beijing-Tianjin is served by Beijing-Tianjin high speed railway and by Beijing-Tianjin section of Shanghai-Beijing high speed railway.
There is the old Shanghai-Beijing line too (which also has relevant sections between Beijing and Tianjin and between Shanghai and Nanjing). Wikipedia gives it as 250km/h which means those two sections actually have not two but three parallel high-speed railways capable of 250-380km/h design speed.
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Old June 6th, 2013, 04:48 AM   #6024
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It makes me wonder why Japanese would go for maglev at 311mph(500km/h) when technology like the CRH500 exist, same speed.
Technology like thge CRH500 exists? What exactly are you talking about? What technology? I haven't seen CRH500's riding 500 km/h on a daily basis in regular revenue service... or at all for that matter.
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Old June 6th, 2013, 05:38 AM   #6025
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Bullet Train Construction Bidding to Pick-up
New, page 2

~ Invitations to bid on for freight train production will be sent to locomotive producers in June, followed soon after by invitations to bid on bullet train production. However, the specific date for the latter is still unknown.
~ Bullet train production has been at a virtual standstill for the two years since the train crash in Wenzhou on July 23, 2011 that killed 40 people. Most railway lines and carriages under construction were delayed for safety concerns, which worried suppliers of railway equipment.
~ Because of speed reductions mandated after the crash, the number of bidding invitations issued for bullet trains has declined in recent years, while invitations for other kinds of carriages remained flat.
~ Assessment of bidding companies for their technological research and development ability, quality assurance and technology management have now been stopped. The coming bid invitations are expected to give many private companies new opportunities.
~ The biggest change for the coming bidding is that who will be invited to bid will now be decided by local railways bureaus. This is because under new railway reforms, local railways bureaus now have more management, investment and construction rights. After these bureaus decide on who can bid, China Railway Corporation will collect the information and then release the invitations.
~ It's estimated that the bidding will affect construction of over 400 new trains.
Original article: [Chinese]

http://www.eeo.com.cn/ens/2013/0603/244872.shtml
The biggest change for the coming bidding is that who will be invited to bid will now be decided by local railways bureaus. This is because under new railway reforms, local railways bureaus now have more management, investment and construction rights.

What does the above mean? Does it mean local bureaus can choose any company in the world?
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Old June 6th, 2013, 06:50 AM   #6026
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Quote:
Originally Posted by Cosmicbliss View Post
The biggest change for the coming bidding is that who will be invited to bid will now be decided by local railways bureaus. This is because under new railway reforms, local railways bureaus now have more management, investment and construction rights.

What does the above mean? Does it mean local bureaus can choose any company in the world?
Yes. But Chinese companies will be hard to beat due to already established maintenance structure plus the price advantage.... So, I give foreign companies zero chance.
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Old June 6th, 2013, 07:57 AM   #6027
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I'd say the political advantage far outweighs any of the others
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Old June 6th, 2013, 01:45 PM   #6028
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Originally Posted by Pansori View Post
There is the old Shanghai-Beijing line too (which also has relevant sections between Beijing and Tianjin and between Shanghai and Nanjing). Wikipedia gives it as 250km/h which means those two sections actually have not two but three parallel high-speed railways capable of 250-380km/h design speed.
As of the end of 6th Speedup Campaign, in April 2007, the only section of Shanghai-Beijing like upgraded to 250 km/h rather than 200 km/h was the Anting-Shanghai West section, just 20,1 km long. How much of the line has been upgraded to 250 km/h since April 2007?
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Old June 6th, 2013, 11:38 PM   #6029
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Quote:
Originally Posted by chornedsnorkack View Post
As of the end of 6th Speedup Campaign, in April 2007, the only section of Shanghai-Beijing like upgraded to 250 km/h rather than 200 km/h was the Anting-Shanghai West section, just 20,1 km long. How much of the line has been upgraded to 250 km/h since April 2007?
I don't think any other sections have been upgraded on that old line, but the line's rating should go with the highest speed possible on the line, so it's considered a 250km/h line. Not all sections of Beijing-Shanghai is rated at 380km/h but the line is still considered 380km/h.
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Old June 8th, 2013, 08:30 AM   #6030
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Nothing, China and Japan are not engaged in any type of HSR arms race. The current CRH trainset meet China's needs so that's what China will be working on for the foreseeable future. The original proposal was an extension of the Shanghai Maglev to Hangzhou, but it was first stalled due to public opposition, and now made moot by the Shanghai-Hangzhou conventional HSR.
The second proposal was to extend the Maglev to Hongqiao with a stop at a city center subway station. The plan was accurately approved, and designed, but met with opposition with EM health concerns, so it was never constructed.

Personally, I thing the whole reason for Hongqiao was chosen to become a HSR station is for this Maglev extension.

I would hope some sort of extension can be build. With rail reforms, we can have air plane - Maglev - HSR code shares. And essentially make a seamless transition from international flights into Shanghai to any of the hundreds of Chinese cities that has HSR.
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Old June 8th, 2013, 12:44 PM   #6031
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I wonder what will be like to add some canards to help alleviate the weight on high speed trains, will they go airborne if they suddenly hit a gush of wind in the opposite direction?
It would serve no purpose - it would reduce traction for no good reason, potentially increase the risk of derailment (although unlikely), and wouldn't fool the universe - energy consumption remains tethered to F=MA irrespective of the unrelated force between wheel and rail perpendicular to the direction of travel.
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Old June 9th, 2013, 12:47 AM   #6032
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It would serve no purpose - it would reduce traction for no good reason, potentially increase the risk of derailment (although unlikely), and wouldn't fool the universe - energy consumption remains tethered to F=MA irrespective of the unrelated force between wheel and rail perpendicular to the direction of travel.
Maglev doesn't need traction, but you are right the lifting force created by the canards will be a huge safety hazard for the train.
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Old June 9th, 2013, 09:21 AM   #6033
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Xian-Datong infrastructure installation well underway and rail laying begins this month. Stations finished later this year, test runs beginning early 2014, scheduled opening still June of 2014.
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Old June 9th, 2013, 09:41 AM   #6034
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Beijing-Fuzhou “G” HSR will open on July 1

The current Beijing-Fuzhou D366 (15.5 hours) will change to G56, bypassing Shanghai. Max speed will upgrade from 200kmph to 300kmph and travel time will be reduced to 10 hours.





by 高铁见闻
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Old June 9th, 2013, 08:54 PM   #6035
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That's good news.
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Old June 10th, 2013, 08:19 AM   #6036
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What is the word on the 300kph extension from Zhengzhou to Xuzhou?

Next year or 2015 completion?

Would be nice to be able to direct from Shanghai to Xian without that bottleneck to Zhengzhou...
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Old June 10th, 2013, 02:30 PM   #6037
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Quote:
Originally Posted by Pansori View Post
There is the old Shanghai-Beijing line too (which also has relevant sections between Beijing and Tianjin and between Shanghai and Nanjing). Wikipedia gives it as 250km/h which means those two sections actually have not two but three parallel high-speed railways capable of 250-380km/h design speed.
Huh?

I thought the old SH-BJ was only upgraded to 200km/h because it still has to run 100km/h freight trains as well.
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Old June 10th, 2013, 04:26 PM   #6038
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Nice and informative post,I agree with you that china is very popular and famous all over the world in railway.I have travelled in this train it is too much fast and furious,Every tourits likes that train.
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Old June 10th, 2013, 05:54 PM   #6039
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Originally Posted by big-dog View Post



by 高铁见闻
Why use the 700 shinkansen as the image? Surely they must have hundreds of stock images of their own trains by now? Wouldn't that be seen as an embarassment?
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Old June 10th, 2013, 08:57 PM   #6040
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Maybe for the editor...
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