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Old June 4th, 2016, 11:07 PM   #501
skyridgeline
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Quote:
Originally Posted by lkstrknb View Post
Chongqing China has two monorail systems using Hitachi design which appear to be compatible, although I'm not sure if the station platform screen doors would match up. (I'm pretty sure they would though.)

Sao Paulo is currently building two separate monorail lines using two different manufacturers, Bombardier and Scomi, with two different beam sizes, so they are completely incompatible.

The two monorail systems in Moscow will probably never meet so building using the same technology doesn't give many advantages.
Unit, part and maintenance costs are significantly lower when scaled up. But the lighter line/system is much cheaper to start with.
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Old June 4th, 2016, 11:51 PM   #502
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Originally Posted by skyridgeline View Post
Unit, part and maintenance costs are significantly lower when scaled up. But the lighter line/system is much cheaper to start with.
Sao Paulo is planning on building a third monorail line, so hopefully it will be built using the same manufacturer and technology as one of the existing monorail lines 15 and 17 being built now.
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Old September 16th, 2016, 03:42 PM   #503
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China's first sky train off assembly line

China's first sky trains came off the assembly line in the city of Nanjing on Saturday, with China becoming the third country to master sky train technology, after Germany and Japan.

The Nanjing Puzhen Company Limited, affiliated to China's largest State-owned rolling stock manufacturer CRRC Corporation Limited (China Railway Rolling Stock Corporation), took only four months to design and complete the elevated railway trains, said CRRC.

The two compartments can hold more than 200 passengers, and when compared with subways and trams, sky trains have lower costs, better climbing and turning ability, and higher wind resistance.

Professor Yue Zhaohong at the Beijing Jiaotong University said the construction period of sky trains is also much shorter than that of subways, lasting only three to five months for dozens of kilometers of rails.

The overhauled railway is driven by batteries which can run for four hours at a time, and the batteries can be changed when stopped at a station, with the whole process lasting only two minutes.

Experts said sky trains are a good choice in third and fourth tiered cities and at scenic spots.

The sky trains are to debut in China next year at a variety of scenic places.



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Old September 16th, 2016, 03:54 PM   #504
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Oy. If "Skytrain" is a fancy word for suspended monorail as I suspect, then France and the US have built systems too-they just didn't consider them economic-and for good reason. There are few places where this can function. Its mostly just a gadgetbahn.
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Old September 16th, 2016, 07:28 PM   #505
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It's funny to see that, always, such systems are said by their promotors
"... when compared with subways and trams, sky trains have lower costs, better climbing and turning ability, and higher wind resistance" .
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Old September 17th, 2016, 05:29 AM   #506
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What is the advantage of a suspended monorail, versus a conventional monorail? A suspended monorail would need taller support poles so the train can clear things below it. It can never operate at ground level.

However I guess by hanging down it would be more stable on a narrower beam than a monorail that straddles the beam from above.

Also a suspended monorail could be better than an aerial cable car or gondola in certain implementations because unlike a cable car they can navigate inside corners.
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Old September 18th, 2016, 01:54 AM   #507
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Old September 18th, 2016, 02:07 AM   #508
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Systems like the one in Wuppertal can actually freely lean in to curves (you can see that here at some points: https://www.youtube.com/watch?v=HHw44C1NQPs) I suppose that means good speeds at more narrow curves. This Chinese model seems to lack that feature though. Also the design reduces the oppressiveness of the line on the street below much less severe, due to slimmer design and the track being higher in the sky. Compare this to some elevated subway systems and you know what I mean, even slimmer regular monorail systems are inferior in this regard.

I don't know why those Chinese designers think however that a battery run system would be a clever idea compared to an electricity rail as with the system in Wuppertal. Subways with batteries instead of 3rd rails, aren't such a common concept either, are they?

PS: In Wuppertal they just introduced a complete new generation of vehicles with a completely redesigned motor and electrical design. Looks good and brings the Wuppertal system into the 21st century. The cabin form is still inspired by the historic vehicles but also a new design.


http://www.schwebebahn-wtal.de/02-ak...01.08.2016.jpg
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Old September 18th, 2016, 04:27 AM   #509
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Quick note on guideway size-those pics above only show the Chinese train, not the guideway.
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Old September 18th, 2016, 11:19 AM   #510
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In that video one can see the size of guideway (beam) and pilars of similar system in Chiba (Japan) : not very light.

https://www.youtube.com/watch?v=n5eIl9eKjfA
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Old September 20th, 2016, 01:33 AM   #511
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True, I suppose the Chinese system is more like the Japanese than the one from Wuppertal. The latter does have a relatively light imprint in my opinion but it is also an actual rail-monorail, not some robber tire system. Due to its age it is also a historic steel construction. Those were simply much more pleasing to the eye than modern concrete structures.
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Old September 27th, 2016, 04:59 PM   #512
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Here are a couple recent videos from Tokyo.



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Old October 1st, 2016, 04:03 PM   #513
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China's first suspension railway completes test run





CHENGDU, Sept. 30 (Xinhua) -- China's first suspension railway line finished its test run in Chengdu, capital of southwest China's Sichuan Province, on Friday.

The lithium-battery powered train, which has a speed of 60 km per hour, successfully ran along the 300-meter test section of the railway line, after being suspended from the line on Friday.

The load capacity will be 120 passengers per train coach, said Zhai Wanming, chief designer of the project, from Southwest Jiaotong University.

Based on the current test line, Zhai estimates the cost of the suspension railway is one-fifth to one-eighth of the cost of underground rail per kilometer. He also said that lithium batteries were environmentally friendly.

The test section of the railway line will be expanded to 1.2 kilometers, for further tests on turning, climbing, and operations at train and charging stations, Zhai said.

"The test runs will continue for tens of thousands of kilometers to check performance capabilities before official operation," he said.

A suspension railway is an elevated monorail where the train is suspended from a fixed track.

One of the earliest electrical elevated railway systems, built in the German city of Wuppertal, opened in 1901 and is still in operation today.



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Old October 1st, 2016, 05:25 PM   #514
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Leaving aside the manufacturing and recycling issues with lithium batteries, that carbody design is eerily similar to the one at Ueno Zoo.

Also:

https://en.wikipedia.org/wiki/SAFEGE

https://en.wikipedia.org/wiki/SAFEGE...ile:Safege.jpg
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Old October 1st, 2016, 09:01 PM   #515
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Quote:
Originally Posted by zaphod View Post
What is the advantage of a suspended monorail, versus a conventional monorail? A suspended monorail would need taller support poles so the train can clear things below it. It can never operate at ground level.

However I guess by hanging down it would be more stable on a narrower beam than a monorail that straddles the beam from above.

Also a suspended monorail could be better than an aerial cable car or gondola in certain implementations because unlike a cable car they can navigate inside corners.
Steel. And suspended monorails can be operated just about anywhere ( the most flexible of all the systems ).

-made and erect(or remove) faster/ ( and possibly cheaper now )
-steel takes up less space
-fire protection/heat is not an issue for this application

http://www.skyscrapercity.com/showthread.php?t=1551092



Quote:
Originally Posted by 00Zy99 View Post
Leaving aside the manufacturing and recycling issues with lithium batteries, that carbody design is eerily similar to the one at Ueno Zoo.

Also:

https://en.wikipedia.org/wiki/SAFEGE

https://en.wikipedia.org/wiki/SAFEGE...ile:Safege.jpg

I don't know about this lithium battery's lifecycles but the use of steel materials will likely offset the negative impacts. That giant panda suspended on rubber tires and not tethered to a "3rd rail" should make it really quite .

http://www.archinode.com/lcasteel.html

Last edited by skyridgeline; October 1st, 2016 at 09:07 PM.
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Old October 14th, 2016, 04:30 PM   #516
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Budget overground monorail train debuts in China





http://www.wsj.com/articles/byd-laun...tem-1476418442

SHANGHAI—Chinese car and battery maker BYD Co. launched a monorail transport system Thursday, as it looks into China’s multibillion-dollar mass transit market.

BYD, which is about 8% owned by Warren Buffett’s Berkshire Hathaway Inc., said in a statement that it has spent five billion yuan, or $750 million, on research and development for the monorail program over the past five years.

The monorail will be put into operation at its headquarters in Shenzhen, running for a distance of 4.4 kilometers, a spokeswoman for the company said Friday. Cars on the monorail system are capable of running at speeds of up to 80 kilometers per hour (50mph).

BYD has won an order for 250-kilometer monorail system from the nearby city of Shantou, the spokeswoman said. Another 20 cities on the mainland are in talks with the company over potential purchases, she said.

China’s transport ministry said in May that the country will invest around 4.7 trillion yuan in transport infrastructure projects over the next three years.

As cities grow and congestion increases, Beijing is calling for companies to intensify their efforts in developing new rail technology. BYD said building a monorail system requires only a fifth of the capital expenditure of a metro line and a third of the construction time.

The transport ministry said earlier this year that the total length of China’s light rail transit system will be increased from the current 3,300 kilometers to about 6,000 kilometers by 2020.
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Old October 24th, 2016, 08:36 AM   #517
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http://www.monorails.org/tMspages/CnstOki.html

This is from The Monorail Society website, an update for the Okinawa Yui Rail Monorail extension being built in Naha.







Visit www.monorails.org for lots of great information on monorails.
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Old October 24th, 2016, 09:43 PM   #518
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Are those monorails going to operate at that snail's pace seen in the video?
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Old November 20th, 2016, 01:51 AM   #519
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Ashgabat Olympic Monorail

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Old November 20th, 2016, 05:38 AM   #520
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The Tokyo-Haneda Monorail was built for the 1964 Olympics. And it will serve the 2020 Olympics.
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