E7 W7 Series Shinkansen

[Guest Closed Account 1]

Per wiki:

 

Replacing the E2 is the 12-car E7/W7 Series. 

 

The first E7 series train is scheduled to be delivered in autumn 2013, and the first W7 series train is scheduled to be delivered in spring 2014.
 
http://en.wikipedia.org/wiki/E7_series

 

[angusmclean]

Can anyone supply the ruling gradients on the new section of this line?

 

Angus

[miyakoji]

Angus, yeah I was wondering that also. I found a MLIT pdf that indicates a 12 per mil grade. So that's a climb of 12m over 1km? I can't really visualize that, but since it had to be taken into consideration when designing the train, I guess it's steep.

 

http://www.mlit.go.jp/common/000125056.pdf

[KenS]

12 per mil is 1.2%.  Not really all that steep as railroad grades go, but likely enough to have an effect on top speeds.  U.S. mainline grades tend to be in the 1-2% range, although 2.5% was a semi-formal limit on mainline grades. The non-mini Shinkansen lines tend to go through rather than over obstacles, so it may be a lot for a Shinkansen design.

 

The Usui pass grade was 66.7 per mil (6.67%) after removing the rack system in the 60's according to wikipedia.  That's very steep by any railroad standards.

[Densha]

I don't want to complain, but we already have a topic about this one (and actually even one more):

http://www.jnsforum.com/community/topic/6478-e7-w7-shinkansen-unveiled/

[Guest Closed Account 1]

Interesting. Searched for E7 before starting this.

[Densha]

It took me a while to find it too though but I knew it existed beforehand.

It's just that multiple topics spreads the discussions and information and it's much more convenient having it in one place.

Edited January 15, 2013 by Densha

[angusmclean]

12 per mil is 1.2%.  Not really all that steep as railroad grades go, but likely enough to have an effect on top speeds.  U.S. mainline grades tend to be in the 1-2% range, although 2.5% was a semi-formal limit on mainline grades. The non-mini Shinkansen lines tend to go through rather than over obstacles, so it may be a lot for a Shinkansen design.

 

The Usui pass grade was 66.7 per mil (6.67%) after removing the rack system in the 60's according to wikipedia.  That's very steep by any railroad standards.

 

Just had a look at Wiki for LGV grades which can be up to 3.5%, so no big challenges.

 

Sorry Densha, maybe the moderators can transfer this thread.  You seem to be rather forward for a 12-year-old.  When is your 13th birthday this year?  :)

 

Angus

[Ochanomizu]

Unfortunately Wiki does not mention grades.  http://ja.wikipedia.org/wiki/%E5%8C%97%E9%99%B8%E6%96%B0%E5%B9%B9%E7%B7%9A

[bikkuri bahn]

The section of the Hokuriku Shinkansen (Nagano Shinkansen) between Karuizawa and Takasaki (Usui Pass), has grades of 3%.

[Ochanomizu]

Thank you Mr bikkuri bahn.

 

Where can I get such information?

[bikkuri bahn]

Thank you Mr bikkuri bahn.

 

Where can I get such information?

http://ktymtskz.my.coocan.jp/sinkansen/nagano.htm

 

Apparently an alternate route with 1.2% grades was considered, but it would have completely bypassed Karuizawa

[Sacto1985]

http://ktymtskz.my.coocan.jp/sinkansen/nagano.htm

 

Apparently an alternate route with 1.2% grades was considered, but it would have completely bypassed Karuizawa

 

If they had built the Nagano Shinkansen on the 1.2% grade route, in my opinion every town east of Ueda Station would have economically gone dead once the Shin'etsu Main Line route over Usui Pass was closed. But with the current alignment, Karuizawa managed to stay economically viable, since it's now a single train ride to get there without the need for a helper locomotive over Usui Pass.

[Ochanomizu]

Thank you Mr bikkuri bahn.

 

Very good informations.  I didn't know about this site.