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Old December 10th, 2015, 03:25 PM   #801
SamuraiBlue
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Quote:
Originally Posted by Shenkey View Post


Anyway, half a bar is not really low and even getting it to 0.8 Bar, would greatly increase the attained speed with the same energy consumed, which is the whole point.
Aughh, you really do not have the slightest notion what you are talking about, do you.
Even if you remove 20% air out of a tunnel the air in front of the moving train piles up as resistance through viscosity developing a high pressure zone that the train requires to move forward. This is the cause of tunnel booming in which the train is forcing air in front of the train out in front of it to the forward side before the train nears the exit.
What do you think will happens if the tunnel does not have an exit?
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Old December 10th, 2015, 10:36 PM   #802
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Why do you keep saying 0.5 bar is not low? Low is only a relative term, indicating direction but not assigning a value. It helps identify the direction of the slope if you will but no more. If we assume atmospheric pressure at sea level is 1 bar then on Earth any value < 1 bar could be termed low pressure as long as we are comparing it to ambient air pressure. eg evenweather systems with values > 0.9 bar are termed "low pressure" and values slightly more than 1 bar qualify as high pressure, clearly if you were talking about hydraulic systems this would not be the case.
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Old December 10th, 2015, 11:16 PM   #803
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Originally Posted by SamuraiBlue View Post
Aughh, you really do not have the slightest notion what you are talking about, do you.
Even if you remove 20% air out of a tunnel the air in front of the moving train piles up as resistance through viscosity developing a high pressure zone that the train requires to move forward. This is the cause of tunnel booming in which the train is forcing air in front of the train out in front of it to the forward side before the train nears the exit.
What do you think will happens if the tunnel does not have an exit?
You can look at how hyperloop does that and also maybe read the first post.
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Old December 11th, 2015, 02:05 AM   #804
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Hyperloop is hyperbole. That's the consensus of people who examined the proposed California route-its impossible for the cost proposed.
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Old December 13th, 2015, 01:31 AM   #805
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ICE Tunnel Irlahüll Süd
[...]
Excellent view!
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Old December 13th, 2015, 09:57 AM   #806
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Is there also a TGV from Lyon to CDG airport? If yes then it explains it partially. Some flight exist purely as connections for long distance routes and not because they are competitive services themselves. Basel-Frankfurt is an excellent is an excellent example. The distance is ca 320 km and it takes about 3 h by ICE or by car (assuming very light traffic). There are numerous flights between these two cities. I've used them many times to connect to flights to somewhere else. Much safer and cheaper that way than trying to combine air and rail.
All TGVs bypassing Paris also stop at CDG, like Lille-CDG-Lyon-Marseille.
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Old December 14th, 2015, 02:43 AM   #807
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Hyperloop is hyperbole. That's the consensus of people who examined the proposed California route-its impossible for the cost proposed.
The hyperloop is ridiculous, but it deals well with the problem that was implied.
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Old December 14th, 2015, 03:17 AM   #808
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The hyperloop is ridiculous, but it deals well with the problem that was implied.
Which problem was that again?
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Old December 14th, 2015, 06:30 PM   #809
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Seiously, we already can move people long distances in metaltubes at speeds spproaching mach 1 and they dont require complex expensive infrastructure. building and maintaining hundreds of kms of evacuated tubes would most like be prohibitively complex and expensive.
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Old December 15th, 2015, 03:48 AM   #810
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I assume that you are referring to airliners here?
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Old January 18th, 2016, 02:58 AM   #811
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fast trains - ICE Tunnel Stammham Nord-dusty trains- SFS Nurnberg, Ingolstadt-Zug, trainfart, train

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Old May 3rd, 2016, 08:07 PM   #812
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Number of high-speed passenger

Passengers in ICE trains (millions)
1991: 5,900
1992: 15,300
1993: 16,400
1994: 20,800
1995: 24,600
1996: 27,363
1997: 28,300
1998: 31,400
1999: 35,640
2000: 41,610
2001: 46,700
2002: 47,600
2003: 56,500
2004: 63,704
2005: 66,800
2006: 66,900
2007: 70,531
2008: 74,700
2009: 73,200
2010: 77,800
2011: 76,100
2012: 76,600
2013: 78,800
2014: 78,000
2015: 79,500
TOTAL: 1.280,748

Source: 1991/2013: UIC. 2007/2012: Deutsche Bahn Facts & Figures: http://www1.deutschebahn.com/ecm2-db...t_reports.html

Passengers-kilometers in ICE trains (billions)
1991: 2,040
1992: 5,200
1993: 7,000
1994: 8,200
1995: 8,700
1996: 8,900
1997: 9,300
1998: 10,200
1999: 11,590
2000: 13,900
2001: 15,500
2002: 15,300
2003: 17,500
2004: 19,604
2005: 20,850
2006: 21,600
2007: 21,919
2008: 23,333
2009: 22,561
2010: 23,903
2011: 23,306
2012: 24,753
2013: 25,178
2014: 24,316
2015: 25,280
TOTAL: 409,933

Source: 1991/2013: the UIC. 2007/2012: Deutsche Bahn Facts & Figures: http://www1.deutschebahn.com/ecm2-db...t_reports.html

Data from the UIC and DB (Page 19) match, which means that the data are all travelers on ICE trains, either circulating on HSR or conventional lines.



Passengers and Passengers-kilometers world data, and explanation of the fact that the operators and the UIC count -in some cases- the number of passengers on high-speed trains, not on high-speed lines.
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Last edited by Gusiluz; May 10th, 2016 at 10:51 AM. Reason: Missing put "millions"
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Old May 5th, 2016, 07:12 PM   #813
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New High Speed railway line Erfurt Nürnberg



Section Ebensfeld to Erfurt
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Last edited by Christian1981; June 15th, 2016 at 06:46 PM.
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Old May 16th, 2016, 01:04 PM   #814
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Super fast trains - ICE Tunnel Geissberg Nord, Zug, trainfart, train

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Old May 26th, 2016, 05:39 PM   #815
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From Rail Journal:

Quote:
http://www.railjournal.com/index.php...ml?channel=537

Germany launches construction of Rastatt tunnel
Thursday, May 26, 2016



A CEREMONY was held on May 25 to mark the official start of construction of the 4270m Rastatt tunnel which forms part of a €11.6bn project to upgrade the 182km Karlsruhe - Basle main line for 250km/h operation

Construction was launched by Dr Rüdiger Grube, chairman of German Rail (DB), in the presence of Mr Alexander Dobrindt, federal minister of transport and digital infrastructure (BMVI), Mr Winfried Hermann, minister of transport of Baden-Württemberg, Mr Edgar Schömig board member of Züblin, and around 500 guests

...
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Old June 15th, 2016, 04:20 PM   #816
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Hi guys,

are there any updates regarding the magnetic levitation trains?
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Old June 15th, 2016, 05:34 PM   #817
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GERMANY | High Speed Rail

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Hi guys,

are there any updates regarding the magnetic levitation trains?


The Japanese one being built has updates. There was a show on NHK world all about it recently. Haven't heard any progress on the German M-Bahn though.
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Old July 11th, 2016, 06:24 AM   #818
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Fast German Trains - Züge ICE SFS

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Old September 15th, 2016, 04:16 AM   #819
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New ICE4 presented:

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GERMANY: Deutsche Bahn's latest generation of inter-city trainset was officially unveiled to the public by CEO Rüdiger Grube and Minister for Transportation & Digital Infrastructure Alexander Dobrindt at Berlin Hauptbahnhof on September 14.
...
Siemens says the ICE4 is designed to run at up to 250 km/h. It is 100 tonnes lighter than a comparable ICE 1, with the use of laser welding reducing the number of connecting elements required in the bodyshell. Aerodynamic optimisation includes a new nose design, improved roofline transitions and bogie skirts on the end cars, and a continuous raised roof on the intermediate cars. As a result the energy consumption per seat is 22% lower than an ICE 1.
...
Several months of testing under real world operating conditions are planned to begin later this year before the expected entry into regular service in December 2017. During this introductory phase, two ICE4 trainsets will be used ‘occasionally’ on the Hamburg – Hannover – Nürnberg – München route.
...

Reduction of maximum speed to 250km/h !!!








First class:


Bike compartment:


http://www.railwaygazette.com/news/h...t-society.html
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Old September 15th, 2016, 04:27 AM   #820
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Seiously, we already can move people long distances in metaltubes at speeds spproaching mach 1 and they dont require complex expensive infrastructure. building and maintaining hundreds of kms of evacuated tubes would most like be prohibitively complex and expensive.
Have to quickly note here that with runways costing $1,000,000 per foot, airplanes rather DO require expensive infrastructure.
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