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Old November 15th, 2012, 11:19 PM   #321
trainrover
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I know. However, it's still not apparent why the route segments must be so high up in flat areas as well.
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Old November 16th, 2012, 12:47 AM   #322
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You might as well ask why the roads are so high up.

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Old November 16th, 2012, 04:59 AM   #323
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maybe we could think the opposite: if there's no high elevated tracks, there must be many sharp ups and downs like this and the train cannot reach a good speed.

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Old November 16th, 2012, 08:21 PM   #324
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The matter ain't about there being none; learning why the excessive height where it seems unecessary is what interests me.
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Old November 16th, 2012, 08:35 PM   #325
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it seems unecessary but maybe it is. We just can't see the whole situation
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Old November 17th, 2012, 03:42 AM   #326
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Big dog suggests why; if the tracks were lower, the train would eventually have to compensate for a significant grade change later on, which obviously has the potential to mess up service.
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Old November 17th, 2012, 07:15 AM   #327
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Speculating ≠ learning ...
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Old November 19th, 2012, 11:22 PM   #328
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Three more rail transit lines to be put into use in Chongqing

CHONGQING (CQNEWS) -- The total operation mileage of Chongqing's rail transit has reached 90 kilometers by the end of September 2012, with a daily passenger volume of 860,000 persons on average, according to Chongqing Urban-Rural Development Commission on October 16.

A total of 3 rail transit lines including the Universities Town section of Line 1, the south extension section of Line 3 and Yuelai branch of Line 6 will be put into service in 2012, increasing the total operation mileage to 147 kilometers. (Translated by Deng Jun, Fathom Language Limited)


http://english.cqnews.net/html/2012-...t_19411632.htm
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Old November 19th, 2012, 11:47 PM   #329
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So what will the mileage be of standard Metro and Monorail respectively? Thanks
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Old November 20th, 2012, 12:38 PM   #330
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Phase III of Chongqing Rail Transit Line 3 to open

The third phase project (Yudong-Ertang section) of Chongqing Rail Transit Line 3 will carry out installment and adjustment of equipment at the beginning of December 2012.
Yudong-Ertang section, with a total length of 16.2 kilometers and more than 10 stations, is expected to be completed and put into trial operation on December 30, 2012.
It will take about an hour and a half from Yudong to Chongqing Jiangbei Airport after the operation of the phase III project. (CQNEWS) (Translated by Liu Kan)



http://english.cqnews.net/html/2012-...t_21476428.htm
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Old December 18th, 2012, 02:42 PM   #331
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Seven stations on Line 1 will open on December 20th


12/17 subway train test running on the new sections on Line 1

--weibo.com
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Old December 19th, 2012, 01:40 AM   #332
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which stations? Phase II of Line 1 has more than seven stations.
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Old December 19th, 2012, 03:43 AM   #333
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Yes it has 9 stations (20.2km). Two stations will open later (Shijingpo and Weidanyuan statios). The 7 opening stations are,

  1 Yanggongqiao 杨公桥站

  2 Lieshimu 烈士墓站

  3 Ciqikou 磁器口站

  4 Shuangbei 双碑站

  5 Laijiaqao 赖家桥站

  6 Chenjiaqiao 陈家桥站

  7 Daxuecheng 大学城站
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Old December 19th, 2012, 04:24 PM   #334
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Quote:
Originally Posted by Falubaz View Post
it seems unecessary but maybe it is. We just can't see the whole situation
the reasoning has been abundantly clear from prior posts. Trains do not like changes in elevation, therefore engineers try to built the tracks to be as flat as possible. In a city with large number of valleys and hills, the elevated tracks would typically maintain the high point of the hills in order to avoid excessive climbing. Therefore, when you have valley, the tracks will seem to be very high off the ground. This relative height will then decrease when there is a hill.
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Old December 21st, 2012, 03:23 AM   #335
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The eastern extension of Line 1 from Xiaoshizi to Chaotianmen - when did that open?
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Old December 21st, 2012, 10:53 AM   #336
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onboard display in Line 1



more photos here: http://mycq.qq.com/t-508030-1.htm
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Old December 22nd, 2012, 04:38 PM   #337
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Quote:
Originally Posted by Woonsocket54 View Post
The eastern extension of Line 1 from Xiaoshizi to Chaotianmen - when did that open?
not anytime soon. The whole Chaotianmen area is under renovation. Chaotianmen station can only open when the renovation project is completed.
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Old December 23rd, 2012, 10:36 AM   #338
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Line 1 is the real metro, all others are monorail.

Is line 6 a metro? or light rail?

Please insert some photos of line 1.
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Old December 24th, 2012, 12:32 AM   #339
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If the rail transit system of Chongqing is planned to be almost entire made of monorails due to the city's hilly topography, then how are two of the lines constructed as conventional subway lines?
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Old December 25th, 2012, 01:38 AM   #340
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Quote:
Originally Posted by Ashis Mitra View Post
Line 1 is the real metro, all others are monorail.

Is line 6 a metro? or light rail?

Please insert some photos of line 1.
line 6 is a conventional metro line.

Quote:
Originally Posted by Jim856796 View Post
If the rail transit system of Chongqing is planned to be almost entire made of monorails due to the city's hilly topography, then how are two of the lines constructed as conventional subway lines?
The predominately elevated lines that go through hilly areas are monorail because being elevated they have to accommodate the terrain they go through. There are a few lines however, that pass through either flat places or just punch though the whole mountain or area in a level plane (like the new line 1 extension). Their profile will be relatively flat compared to the monorail alignments so a conventional metro is preferred. In the past only 2 lines where planned to be conventional metros (lines 1 and 6) the rest being monorails but some lines are now being planned and realigned to use conventional metro tech due to ridership forecasts being very high; beyond that of a monorail.

Last edited by saiho; December 25th, 2012 at 01:45 AM.
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