daily menu » rate the banner | guess the city | one on oneforums map | privacy policy | DMCA | news magazine | posting guidelines

Go Back   SkyscraperCity > Infrastructure and Mobility Forums > Railways

Railways (Inter)national commuter and freight trains



Global Announcement

As a general reminder, please respect others and respect copyrights. Go here to familiarize yourself with our posting policy.


Reply

 
Thread Tools
Old March 16th, 2012, 08:24 PM   #201
Railfan
steamer
 
Railfan's Avatar
 
Join Date: Nov 2006
Location: Guayaquil
Posts: 14,808
Likes (Received): 93

Railfan no está en línea   Reply With Quote

Sponsored Links
Old March 16th, 2012, 09:02 PM   #202
asahi
Registered User
 
asahi's Avatar
 
Join Date: Dec 2007
Posts: 584
Likes (Received): 189

Looks nice Do you have more photos?
asahi no está en línea   Reply With Quote
Old March 16th, 2012, 09:16 PM   #203
aquaticko
Registered User
 
Join Date: Mar 2011
Location: Manchester, NH
Posts: 1,995
Likes (Received): 1031

Thanks, ruready1000. I've been looking for information like that for a long time. It seems like ridership figures are improving very nicely with time, even enough to justify increasing capacity on the Gyeongbu and Gyeongjeon line, although I wonder why the Honam KTX is doing so poorly.

And I'll definitely have to closely watch the HEMU-400x as it progresses.
aquaticko no está en línea   Reply With Quote
Old March 17th, 2012, 12:57 AM   #204
Sopomon
Hideous and malformed
 
Sopomon's Avatar
 
Join Date: Oct 2010
Posts: 870
Likes (Received): 153

Quote:
Originally Posted by Railfan View Post
Oh lawdy here it comes...
__________________
And he kicked so many rosebushes at her that eventually, Sasuke turned into a log.
Sopomon no está en línea   Reply With Quote
Old March 17th, 2012, 02:54 AM   #205
Jay
Registered User
 
Jay's Avatar
 
Join Date: Oct 2004
Location: California to Barcelona
Posts: 4,055
Likes (Received): 1864

woaaah that's a pretty train.
Jay no está en línea   Reply With Quote
Old March 17th, 2012, 04:38 AM   #206
k.k.jetcar
Registered User
 
k.k.jetcar's Avatar
 
Join Date: Jul 2008
Location: Sapporo
Posts: 1,811
Likes (Received): 452

Looking forward to seeing more pics of that trainset. Especially the bogies, they are a good indicator of design philosophy and pedigree. You can see that it utilizes twin dampers.
k.k.jetcar no está en línea   Reply With Quote
Old March 17th, 2012, 04:53 AM   #207
krnboy1009
Registered User
 
krnboy1009's Avatar
 
Join Date: Aug 2011
Location: Brooklyn
Posts: 1,661
Likes (Received): 169

Hopefully there is no mechanical issues with this sets.

KTX Sancheon, what could have been....
krnboy1009 no está en línea   Reply With Quote
Old March 17th, 2012, 05:11 AM   #208
k.k.jetcar
Registered User
 
k.k.jetcar's Avatar
 
Join Date: Jul 2008
Location: Sapporo
Posts: 1,811
Likes (Received): 452

Quote:
Originally Posted by krnboy1009 View Post
Hopefully there is no mechanical issues with this sets.

KTX Sancheon, what could have been....
The good thing about that is, the engineers can learn from the mistakes, and build a better product.

I read on a bulletin board that officials from Turkey's national railway visited the Hyundai Rotem Changwon Factory in January, and toured the prototype HEMU trainset. A fuzzy magazine picture shows them posed in front of a train that's obviously not a KTX1 or Sancheon.
k.k.jetcar no está en línea   Reply With Quote
Old March 17th, 2012, 06:35 PM   #209
ruready1000
Registered User
 
Join Date: Nov 2008
Posts: 760
Likes (Received): 107

Quote:
Originally Posted by aquaticko View Post
Thanks, ruready1000. I've been looking for information like that for a long time. It seems like ridership figures are improving very nicely with time, even enough to justify increasing capacity on the Gyeongbu and Gyeongjeon line, although I wonder why the Honam KTX is doing so poorly.
Honam KTX runs on both dedicated hsr line and conventional line, and the population on Honam line is quite smaller than that on Gyeongbu line. Even worse is that its competitiveness against buses is relatively low like this :
Seoul <--> Gwangju
  • KTX
    - journey time : 2h50m~3h
    - fare(normal seat) : 36,900won on weekday, 39,700won on weekend
  • Bus
    - journey time : 3h30m~3h40m
    - fare : normal bus(16,900 won), premium bus(25,000 won)
Anyway the ridership of Honam line would increase considerably when Honam HSR line, under construction, is completed in 2014. The travel time between Seoul and Gwangju is estimated to be 1h40m~50m and Suseo HSR, under construction, would shorten the travel time further when it's completed in 2014.
Quote:
Originally Posted by k.k.jetcar View Post
Looking forward to seeing more pics of that trainset. Especially the bogies, they are a good indicator of design philosophy and pedigree. You can see that it utilizes twin dampers.
It's not launched yet so there's few photos.

Quote:
Originally Posted by k.k.jetcar View Post
The good thing about that is, the engineers can learn from the mistakes, and build a better product.

I read on a bulletin board that officials from Turkey's national railway visited the Hyundai Rotem Changwon Factory in January, and toured the prototype HEMU trainset. A fuzzy magazine picture shows them posed in front of a train that's obviously not a KTX1 or Sancheon.
I think the picture you saw is :


source
ruready1000 no está en línea   Reply With Quote
Old March 18th, 2012, 01:51 PM   #210
hmmwv
Registered User
 
hmmwv's Avatar
 
Join Date: Jul 2006
Location: Seattle
Posts: 2,391
Likes (Received): 420

Does the HEMU-400X use jacobs bogie?
hmmwv no está en línea   Reply With Quote
Old March 18th, 2012, 05:12 PM   #211
k.k.jetcar
Registered User
 
k.k.jetcar's Avatar
 
Join Date: Jul 2008
Location: Sapporo
Posts: 1,811
Likes (Received): 452

Quote:
Originally Posted by hmmwv View Post
Does the HEMU-400X use jacobs bogie?
No, it uses a conventional bogie configuration like Siemens ICE3/Velaro or Shinkansen types. It appears from the picture angle to be a conventional design common on current high speed trainsets, analogous to these types-

Velaro E:
http://commons.wikimedia.org/wiki/Fi...ro_E_bogie.jpg

Sapsan:
http://www.magazin-deutschland.de/ty...7c3b1f63f0.jpg

Bogie for the mythical at this moment KHI efSET:
http://4.bp.blogspot.com/-fGDHg_c3hZ...-06_011602.jpg

Last edited by k.k.jetcar; March 18th, 2012 at 05:17 PM.
k.k.jetcar no está en línea   Reply With Quote
Old March 19th, 2012, 12:22 PM   #212
hmmwv
Registered User
 
hmmwv's Avatar
 
Join Date: Jul 2006
Location: Seattle
Posts: 2,391
Likes (Received): 420

It's interesting to see KR abandoned the jacobs bogie found on its previous trains and go for a conventional one on the very high speed train. The French always argued that jacobs bogie benefits very high speed trains by creating a more rigid trainset. So now both Korea and China's 400-500km/h test trains use conventional bogie.
hmmwv no está en línea   Reply With Quote
Old March 19th, 2012, 04:51 PM   #213
aquaticko
Registered User
 
Join Date: Mar 2011
Location: Manchester, NH
Posts: 1,995
Likes (Received): 1031

Anyone know why they would switch? Are conventional bogies cheaper, or what are the advantages vs. a jacobs bogie?
aquaticko no está en línea   Reply With Quote
Old March 20th, 2012, 05:07 PM   #214
arriaca
BANNED
 
arriaca's Avatar
 
Join Date: Feb 2006
Posts: 5,983
Likes (Received): 91

Quote:
Originally Posted by hmmwv View Post
It's interesting to see KR abandoned the jacobs bogie found on its previous trains and go for a conventional one on the very high speed train. The French always argued that jacobs bogie benefits very high speed trains by creating a more rigid trainset. So now both Korea and China's 400-500km/h test trains use conventional bogie.
Donīt forget "rodales Talgo". The new Talgo Avril is called to get more than 350 km/h of maximum speed.
arriaca no está en línea   Reply With Quote
Old March 21st, 2012, 06:09 AM   #215
seeu11
Registered User
 
Join Date: Mar 2012
Posts: 1
Likes (Received): 0

Hyundai Rotem HEMU-430X








Last edited by seeu11; March 22nd, 2012 at 07:29 AM.
seeu11 no está en línea   Reply With Quote
Old March 21st, 2012, 06:43 AM   #216
aquaticko
Registered User
 
Join Date: Mar 2011
Location: Manchester, NH
Posts: 1,995
Likes (Received): 1031

Having those hump things on top of the trains is...unusual, isn't it? I know that this train is switching from a locomotive to an EMU setup, but I don't remember seeing anything like that on other EMU's. It also seems pretty unhelpful for aerodynamics, which are particularly important here considering the +350km/h operating speeds this is set for.

Anyone have a clue to all this? All that aside, it is a pretty train.
aquaticko no está en línea   Reply With Quote
Old March 21st, 2012, 07:00 AM   #217
[email protected]
Global Citizen
 
R@ptor's Avatar
 
Join Date: Jan 2004
Location: Frankfurt
Posts: 4,302
Likes (Received): 6407

Average ocupancy rates of above 100%

I guess they would be well advised to significantly increase the frequencies.

Quote:
Originally Posted by ruready1000 View Post
KTX Annaul Passenger Traffic ( 2004 ~ 2011 )



source : Korean Government Statistics
R@ptor no está en línea   Reply With Quote
Old March 21st, 2012, 12:11 PM   #218
hmmwv
Registered User
 
hmmwv's Avatar
 
Join Date: Jul 2006
Location: Seattle
Posts: 2,391
Likes (Received): 420

Quote:
Originally Posted by aquaticko View Post
Having those hump things on top of the trains is...unusual, isn't it? I know that this train is switching from a locomotive to an EMU setup, but I don't remember seeing anything like that on other EMU's. It also seems pretty unhelpful for aerodynamics, which are particularly important here considering the +350km/h operating speeds this is set for.

Anyone have a clue to all this? All that aside, it is a pretty train.
You are not alone, the aerodynamic fairings seem to be unusually large compare to other EMUs.
hmmwv no está en línea   Reply With Quote
Old March 21st, 2012, 12:19 PM   #219
Silver Swordsman
Registered User
 
Join Date: Nov 2011
Posts: 371
Likes (Received): 101

Quote:
Originally Posted by aquaticko View Post
Anyone know why they would switch? Are conventional bogies cheaper, or what are the advantages vs. a jacobs bogie?
Jacobs Bogie:
Pro: Stronger car-to-car connection: hard to separate, safer in the event of an accident due to rigidity. Less wheel assemblies mean lighter weight, and to a certain extent, cheaper.
Con: Heavier axle loads (less wheels means more weight per wheel), which spells into more wear on rail infrastructure. Also known to contribute to a bumpier and less pleasant ride. Also makes it harder to separate units for maintenance (if one car has a problem, the whole train has to go with it).

Conventional Bogie:
Pro: Ease of maintenance (can separate cars under normal conditions). Smoother ride.
Con: A bit more expensive, and more prone to tipping in accidents (as well as jackknifing) as the connection between carriages are substantially weaker.

[hr]

Those "humps" seem to be for the pantograph wires: I think it looks cumbersome only because the train is really short: on longer consists, I do not think it should be a problem.

And pretty train indeed. I thought the head looked ugly close up, but from afar, it's actually quite nice.
__________________
My Virtual-Model Railroad: High Speed Rail in RCT3
Project Anniversary: Click Here

Last edited by Silver Swordsman; March 21st, 2012 at 02:37 PM.
Silver Swordsman no está en línea   Reply With Quote
Old March 21st, 2012, 03:50 PM   #220
aquaticko
Registered User
 
Join Date: Mar 2011
Location: Manchester, NH
Posts: 1,995
Likes (Received): 1031

Thanks for the info, Silver Swordsman. I think I'd have preferred if they still used jacob's bogies, but then, they didn't consult me when designing the train :P.
aquaticko no está en línea   Reply With Quote


Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Related topics on SkyscraperCity


All times are GMT +2. The time now is 06:24 AM.


Powered by vBulletin® Version 3.8.11 Beta 4
Copyright ©2000 - 2018, vBulletin Solutions Inc.
Feedback Buttons provided by Advanced Post Thanks / Like (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.

SkyscraperCity ☆ In Urbanity We trust ☆ about us | privacy policy | DMCA policy

tech management by Sysprosium