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  #3781  
Old Posted Sep 26, 2016, 10:50 AM
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Originally Posted by Catenary View Post
This process makes sense, the gas powered device I saw would be a grinder.

There was definitely rail with holes though, when I passed by, possibly for an electrical isolator.
Was surprised to see the welders still hard at work on Sunday morning.
     
     
  #3782  
Old Posted Sep 26, 2016, 11:34 AM
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Mini update: Cement ties layed down in and around tremblay station as of saturday.
Im not exactly sure to where they reach out but I saw them passing over the bridge at vanier parkway/riverside. The tracks are also there, but next to the ties.
     
     
  #3783  
Old Posted Sep 26, 2016, 1:10 PM
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Originally Posted by Uhuniau View Post
I'm not convinced adequate design consideration has been given to shade.
Not adequate shade in the underground stations??? I assume you accidentally deleted the wrong part of my original post and are referring to the other stations. I don't disagree with you, but also don't think they will be much different than the greenhouses for stations we currently (previously) have. If the glass has a spectrally selective glazing that reflects IR light, the shading may not be as bad as we are assuming. Typically they aren't used here though, as in the winter we want that IR light for natural heating.
     
     
  #3784  
Old Posted Sep 26, 2016, 1:43 PM
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Originally Posted by Guideway View Post
[...]
Train comes to track 1 and empty's the train while track 2 is boarding. [...].
*empties.

Sorry, just a neurotic pet peeve of mine.
     
     
  #3785  
Old Posted Sep 26, 2016, 2:53 PM
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Originally Posted by Catenary View Post
In Ottawa, it would make sense to have a tail track, so trains always enter and leave the station on the same tracks. This is no longer possible due to the temporary bus road built over the trench at Tunney's Pasture.
Did they relocate the bus road over the trench? The original design had it beside the trench and included a tail track beside the bus loop, from the end of the platform to Goldenrod/Smirle. What are they going to do when they start construction of Stage 2? Seems short sighted to build a road that can only be used for a few months.
     
     
  #3786  
Old Posted Sep 26, 2016, 3:02 PM
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Originally Posted by Guideway View Post
It's also like that at Blair, but Blair is a center platform station. But I also agree that the trains should run further out of the terminal station (especially considering the path they are already taking for stage 2 expansion is going to continue off the track from the terminal stations) and then come right back. Also, I don't get how they are going to manage if both tracks at terminal station will be heading east/west and trains will be running at every 3m!

Here is an example:

|Track 1|Track 2|
|- ---- -|- ---- -|
|- ---- -|- ---- -|

Train is already at track 2
Train comes to track 1 and empty's the train while track 2 is boarding. Takes a good 4 minutes to switch side of the train (Considering the train is 98m long).
Train on track 2 leaves.
Meanwhile, a train is already waiting at the station for an empty track.
If we have a train waiting at all times, it wont be an efficient service having to wait 2 minutes 20m away from the station for a train to leave to empty space for the next.

I might be wrong, but that is how I have it calculated in my head.

So why is Tunneys not a center platform station? Seems like that would be cheaper to build, and more efficient to operate and less of a hassle for passengers too.

I am following the Warsaw metro construction of their M2 line, and all stations are center platform there, and their M1 line was pretty much mostly center platforms, and this arrangement works well even in rush hour.
     
     
  #3787  
Old Posted Sep 26, 2016, 3:20 PM
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So why is Tunneys not a center platform station? Seems like that would be cheaper to build, and more efficient to operate and less of a hassle for passengers too.
I'm guessing its because the existing station has side platforms and they can re-use enough of the existing infrastructure to make it more affordable to keep it as is.
     
     
  #3788  
Old Posted Sep 26, 2016, 4:45 PM
Uhuniau Uhuniau is offline
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Quote:
Originally Posted by roger1818 View Post
Not adequate shade in the underground stations???
Did I say that?

No?

Then carry on.

Quote:
I assume you accidentally deleted the wrong part of my original post and are referring to the other stations.
no, just that the quote feature doesn't re-quote already-quoted material. Don't be so defensive.

Quote:
I don't disagree with you, but also don't think they will be much different than the greenhouses for stations we currently (previously) have. If the glass has a spectrally selective glazing that reflects IR light, the shading may not be as bad as we are assuming. Typically they aren't used here though, as in the winter we want that IR light for natural heating.
The current greenhouses are utter misery in the summer.

In the winter, the sun is at a lower angle. Your passive IR heating comes in through the sides more so than the roof. If shade and protection from summer heat is at all a design value, then the rooves, for summer purposes, must be opaque.
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  #3789  
Old Posted Sep 26, 2016, 5:07 PM
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Originally Posted by Uhuniau View Post
Don't be so defensive.
I'm not the one being defensive.
     
     
  #3790  
Old Posted Sep 26, 2016, 7:43 PM
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Originally Posted by passwordisnt123 View Post
*empties.

Sorry, just a neurotic pet peeve of mine.
I knew something was wrong.
I won't make the same mistake twice!
     
     
  #3791  
Old Posted Sep 26, 2016, 7:46 PM
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Also, I saw a whole bunch of cement trucks on rideau street this afternoon! Probably making the station platforms or somthing.
     
     
  #3792  
Old Posted Sep 26, 2016, 11:09 PM
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Designing an open station to optimize passenger comfort in both summer heat and winter cold is difficult; you'll pretty much always have to, to some extent, sacrifice one for other. And given that our winter cold is much more severe than our summer heat, putting more of a focus on keeping them warm in winter, at the expense of being a little stuffy in the summer, is perfectly acceptable, IMO.
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  #3793  
Old Posted Sep 26, 2016, 11:12 PM
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Originally Posted by 1overcosc View Post
Designing an open station to optimize passenger comfort in both summer heat and winter cold is difficult; you'll pretty much always have to, to some extent, sacrifice one for other. And given that our winter cold is much more severe than our summer heat, putting more of a focus on keeping them warm in winter, at the expense of being a little stuffy in the summer, is perfectly acceptable, IMO.
The real question is, is it more comfortable to stay warm in winter or to keep cool in summer?
Personally, i'd rather stay warm then cold.
     
     
  #3794  
Old Posted Sep 27, 2016, 12:59 AM
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The real question is, is it more comfortable to stay warm in winter or to keep cool in summer?
Personally, i'd rather stay warm then cold.
You know I've thought about this- but I don't really know how much of improvement you can make to the enclosed nature of the station to make it warmer when there are two massive gaps on both of the building and lots of entrances. The nature of the being a transit station makes me really wonder how much improvement can be made when it's regularly -20c.

So I can see the desire to save resources on a largely fertile battle. That being said, it is important to look critically at the design on this topic. I do trust RTG to build this right as the team behind it is skilled and ultimately in charge of maintenance. We've seen some improvement in the design of the downtown tunneled stations with the double height at the platform over the previous city renders of near bunkers for a platform. In the summer a heavily enclosed station would be a sweat box.

I think it's reasonable to look at building heated waiting areas at main stations. Quality construction with next train status boards the could be a nice feature of the system.
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  #3795  
Old Posted Sep 27, 2016, 2:23 AM
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Originally Posted by Mikeed View Post
Quality construction with next train status boards the could be a nice feature of the system.
Not just nice, but useful as well! When I go to cities with subway/metro systems, I absolutely hate not knowing when the next train is coming. I don't know how it's for the rest of the world, but that little bit of technology is something I want in the metro stations.
     
     
  #3796  
Old Posted Sep 27, 2016, 4:22 AM
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Quote:
Originally Posted by 1overcosc View Post
Designing an open station to optimize passenger comfort in both summer heat and winter cold is difficult; you'll pretty much always have to, to some extent, sacrifice one for other. And given that our winter cold is much more severe than our summer heat, putting more of a focus on keeping them warm in winter, at the expense of being a little stuffy in the summer, is perfectly acceptable, IMO.
Moveable shades/blinds, louvres, slideable partitions, can all make outdoorsy stations more-wintery or more-summery, selon le cas.
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  #3797  
Old Posted Sep 27, 2016, 4:22 AM
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Originally Posted by Guideway View Post
The real question is, is it more comfortable to stay warm in winter or to keep cool in summer?
Personally, i'd rather stay warm then cold.
If you're too cold, you can put on more clothes.

There is a limit to how far you can legally go in the other direction.
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  #3798  
Old Posted Sep 27, 2016, 7:09 AM
MalcolmTucker MalcolmTucker is online now
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When things are busy frequency will be high enough that discomfort will be negligible. Other times little glass boxes with on demand heaters should work.

If you are thinking shadow vs light the entire station length need not be similar. Easiest solution is to only have a roof over half the platform.
     
     
  #3799  
Old Posted Sep 27, 2016, 10:31 AM
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Originally Posted by MalcolmTucker View Post
... on demand heaters should work.
It certainly never worked at St. Laurent station, which was always dreadfully cold in winter, despite a 5-minutes on demand heater taking 45 minutes to warm up a little bit. Obviously the administrators are not the ones freezing in a cold dirty station while waiting for a bus.
     
     
  #3800  
Old Posted Sep 27, 2016, 10:40 AM
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Originally Posted by Uhuniau View Post
If you're too cold, you can put on more clothes.

There is a limit to how far you can legally go in the other direction.
I don't know about that. You can go pretty far...
     
     
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