ICE question

ICE question

Postby ConducTTor » Fri Aug 16, 2013 5:11 pm

Can someone explain the comment at 2:51 in this video please?

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Re: ICE question

Postby LVG1 » Fri Aug 16, 2013 5:49 pm

The comment seems to be incomplete.

I only can imagine that it refers to the construction of the line mentioned.

The high-speed line between Frankfurt upon Main and Cologne is the only line in Germany with a speed limit of more than 300 km/h (about 190 mph).
It's construction follows the system of French TGV lines. That means that it includes very steep grades. Going downhill the trains gather speed and use the momentum to go uphill. This way the trains can be fast and save energy although.
The problem is, if a train has to stop (because of emergency braking or something like that) it must be able to start again—also uphill. But for most trains the grades are too steep to do this. That's why only trains being capable of that are allowed to run on this line. And as far as I know, 3rd generation ICE's are currently the only ones with this permission.
Presumably, that's what the comment refers to.
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Re: ICE question

Postby ConducTTor » Fri Aug 16, 2013 6:33 pm

Thank you, that makes sense. Do you know what the steepest grade on the line is?


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Re: ICE question

Postby LVG1 » Sat Aug 17, 2013 8:24 am

Wikipedia says, 4%.

But that's European calculation method. Following American calculation method it should be about 3.997 %.
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Re: ICE question

Postby ConducTTor » Sat Aug 17, 2013 12:34 pm

dank
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Re: ICE question

Postby LVG1 » Sat Aug 17, 2013 1:25 pm

No problem!
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Re: ICE question

Postby LVG1 » Sat Aug 17, 2013 7:46 pm

Image
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Re: ICE question

Postby ConducTTor » Sun Aug 18, 2013 12:24 am

WOW!

All of a sudden all of those figure 8 BTTB layouts are prototypical :wink:
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