Welcome Guest!
In order to take advantage of all the great features that Waterloo Region Connected has to offer, including participating in the lively discussions below, you're going to have to register. The good news is that it'll take less than a minute and you can get started enjoying Waterloo Region's best online community right away.
or Create an Account




Thread Rating:
  • 15 Vote(s) - 3.93 Average
  • 1
  • 2
  • 3
  • 4
  • 5
ION - Waterloo Region's Light Rail Transit
(01-14-2018, 04:44 PM)Canard Wrote: None of them really looked like they were in a mood to chat, otherwise I would have asked them.

That curve has been done for like, a year and a half, though - so that’s a bit annoying.

Since they’ll have to re-pour concrete, best case were looking at a 1-1.5 week delay to a pull-through up-to (or past) this point, depending of course on when they do the pour...

I think I’ll revise my drive to work for the next little bit to keep tabs on progress here.

that curve was a little wonky when i went past it on the iXpress.  at least they have the Cameron crossover to turn back at. ¯\_(ツ)_/¯
Reply


(01-14-2018, 05:09 PM)trainspotter139 Wrote:
(01-14-2018, 04:44 PM)Canard Wrote: None of them really looked like they were in a mood to chat, otherwise I would have asked them.

That curve has been done for like, a year and a half, though - so that’s a bit annoying.

Since they’ll have to re-pour concrete, best case were looking at a 1-1.5 week delay to a pull-through up-to (or past) this point, depending of course on when they do the pour...

I think I’ll revise my drive to work for the next little bit to keep tabs on progress here.

that curve was a little wonky when i went past it on the iXpress.  at least they have the Cameron crossover to turn back at. ¯\_(ツ)_/¯

For pull-through they go both directions on each track anyway, so they should be able to go up to just short of the work, then go back, use the crossover to get to the other track, go past the work, and use the next crossover to get back onto that track. In short, unless I’m misunderstanding the geometry, the only part that needs to be excluded from the pull-through should be the work area and areas immediately adjacent to it.
Reply
Theoretically, sure - but who knows what kind of paperwork has to be filed that might red tape the whole Southern section of the alignment until this is resolved. I wouldn't count on them doing what you propose, based on how careful and delicate every other aspect of the pull-through testing has been. Everything has like 20 people signing off on things and checkboxes and clipboards and so on, it's not like they're just slamming it through saying "Oh yeah, good enough".

Back in December, I noticed the overwidth through-beam transmitter on the Waterloo Spur was stuffed full of snow:

<blockquote class="twitter-tweet" data-lang="en"><p lang="en" dir="ltr">I can’t imagine the transmitter for the photoelectric sensor on the Waterloo Spur overheight detector works too well when blocked with snow. <a href="https://twitter.com/hashtag/wrLRT?src=hash&amp;ref_src=twsrc%5Etfw">#wrLRT</a> <a href="https://t.co/ufoo9g0OrU">pic.twitter.com/ufoo9g0OrU</a></p>&mdash; ? Iain Hendry ? (@Canardiain) <a href="https://twitter.com/Canardiain/status/944617893341335557?ref_src=twsrc%5Etfw">December 23, 2017</a></blockquote>

They've now revised the design for the shroud around it:

<blockquote class="twitter-tweet" data-conversation="none" data-lang="en"><p lang="en" dir="ltr">A revision! <a href="https://t.co/eUEkSkMgXc">pic.twitter.com/eUEkSkMgXc</a></p>&mdash; ? Iain Hendry ? (@Canardiain) <a href="https://twitter.com/Canardiain/status/952662079927914498?ref_src=twsrc%5Etfw">January 14, 2018</a></blockquote>
Reply
(01-14-2018, 07:10 PM)Canard Wrote: Theoretically, sure - but who knows what kind of paperwork has to be filed that might red tape the whole Southern section of the alignment until this is resolved.  I wouldn't count on them doing what you propose, based on how careful and delicate every other aspect of the pull-through testing has been.  Everything has like 20 people signing off on things and checkboxes and clipboards and so on, it's not like they're just slamming it through saying "Oh yeah, good enough".

Back in December, I noticed the overwidth through-beam transmitter on the Waterloo Spur was stuffed full of snow:

<blockquote class="twitter-tweet" data-lang="en"><p lang="en" dir="ltr">I can’t imagine the transmitter for the photoelectric sensor on the Waterloo Spur overheight detector works too well when blocked with snow. <a href="https://twitter.com/hashtag/wrLRT?src=hash&amp;ref_src=twsrc%5Etfw">#wrLRT</a> <a href="https://t.co/ufoo9g0OrU">pic.twitter.com/ufoo9g0OrU</a></p>&mdash; ? Iain Hendry ? (@Canardiain) <a href="https://twitter.com/Canardiain/status/944617893341335557?ref_src=twsrc%5Etfw">December 23, 2017</a></blockquote>

They've now revised the design for the shroud around it:

<blockquote class="twitter-tweet" data-conversation="none" data-lang="en"><p lang="en" dir="ltr">A revision! <a href="https://t.co/eUEkSkMgXc">pic.twitter.com/eUEkSkMgXc</a></p>&mdash; ? Iain Hendry ? (@Canardiain) <a href="https://twitter.com/Canardiain/status/952662079927914498?ref_src=twsrc%5Etfw">January 14, 2018</a></blockquote>

Please explain to me how ANY engineer, or anyone for that matter didnt notice that?!?!?!  I am without words !!!
Reply
They did notice it, which is likely why it was changed.

I'm doubtful the derail device (and overwidth/overheight detector) is in use, otherwise we would have seen this rectified within a few days of it going up.
Reply
(01-14-2018, 08:55 PM)Canard Wrote: They did notice it, which is likely why it was changed.

I'm doubtful the derail device (and overwidth/overheight detector) is in use, otherwise we would have seen this rectified within a few days of it going u
I really appreciate your open mind, however, this is a serious mistake.  When I worked in manufacturing in the private sector, a mistake like this would have and likely have cost me my job.  We like to call that accountability....  I appreciate mistakes, but this is a safety concern. It cannot not, nor should be defended.   If it wasnt caught and there was a serious accident as result of it, everyone would have been critical of it.
You caught the mistake and your involvement is simply an excited advocate of the program who takes time to appreciate the work of everyone involved and you caught it.....  I am sure if I saw it,  I would have caught it to, so that leaves no excuse...
Thank you for saving the system a possible fatal error down the road..
seriously,  the region should be giving you a formal acknowledgement,,,
Reply
It's called a mistake. People make 'em. Even engineers and mechanical designers, like me (gasp!).

The way you're talking you're assuming that a blocked sensor would result in a train getting through and some catastrophic event could occur - when in fact, a blocked sensor would give a false positive - that is, "Train too fat" and it would have been stopped.

I'll leave this post up for a few hours then likely delete both it and my tweets, thanks to your reaction.
Reply


(01-14-2018, 07:10 PM)Canard Wrote: Theoretically, sure - but who knows what kind of paperwork has to be filed that might red tape the whole Southern section of the alignment until this is resolved.  I wouldn't count on them doing what you propose, based on how careful and delicate every other aspect of the pull-through testing has been.  Everything has like 20 people signing off on things and checkboxes and clipboards and so on, it's not like they're just slamming it through saying "Oh yeah, good enough".

Good point. It’s hard to say exactly what impact it will have. Although I would expect that the other track can still be tested unless, again, I misunderstand the geometry. Actually this raises a question in my mind — how do they record that they have completed a pullthrough? Start and end points? Tick off each pole as they pass it? This might relate to how they deal with an impassable stretch of track. Depending on how they do it my suggestion might be fine or it might be easier just to hold off at some convenient stopping point until the work is done.

Quote:Back in December, I noticed the overwidth through-beam transmitter on the Waterloo Spur was stuffed full of snow:

<blockquote class="twitter-tweet" data-lang="en"><p lang="en" dir="ltr">I can’t imagine the transmitter for the photoelectric sensor on the Waterloo Spur overheight detector works too well when blocked with snow. <a href="https://twitter.com/hashtag/wrLRT?src=hash&amp;ref_src=twsrc%5Etfw">#wrLRT</a> <a href="https://t.co/ufoo9g0OrU">pic.twitter.com/ufoo9g0OrU</a></p>&mdash; ? Iain Hendry ? (@Canardiain) <a href="https://twitter.com/Canardiain/status/944617893341335557?ref_src=twsrc%5Etfw">December 23, 2017</a></blockquote>

They've now revised the design for the shroud around it:

<blockquote class="twitter-tweet" data-conversation="none" data-lang="en"><p lang="en" dir="ltr">A revision! <a href="https://t.co/eUEkSkMgXc">pic.twitter.com/eUEkSkMgXc</a></p>&mdash; ? Iain Hendry ? (@Canardiain) <a href="https://twitter.com/Canardiain/status/952662079927914498?ref_src=twsrc%5Etfw">January 14, 2018</a></blockquote>

Cool to see that’s been fixed. Weird that the initial design wasn’t right: I mean, presumably this isn’t the first size detector in the country? It’s not like a specific curve, or the placement of a sign, either of which obviously are custom-designed for our system. I would have thought that the entire oversize detector would be a standard design, with at least dozens of existing installations.

I have to say, I’m not sure why you would delete any of your posts. I think you come out looking pretty good — you noticed a problem, noticed it’s been fixed, then nicely corrected somebody who assumed it would fail dangerous. We want to have the good information out there alongside the nonsense.
Reply
(01-14-2018, 08:55 PM)Canard Wrote: They did notice it, which is likely why it was changed.

I'm doubtful the derail device (and overwidth/overheight detector) is in use, otherwise we would have seen this rectified within a few days of it going up.

For all we know, maybe the installation crew noticed it and alerted management, who scheduled repairs for later. Obviously on a non-emergency basis because it wasn’t going directly into service anyway.

Or maybe the sensor triggered when the snow came, the operations centre noticed, sent out somebody to investigate, and then schedule repairs.

Either way, perfectly safe operation, and given the size of the project, no evidence of overall sloppiness.

Now those line painting crews, on the other hand …
Reply
(01-14-2018, 09:33 PM)Canard Wrote: It's called a mistake.  People make 'em.  Even engineers and mechanical designers, like me (gasp!).

The way you're talking you're assuming that a blocked sensor would result in a train getting through and some catastrophic event could occur - when in fact, a blocked sensor would give a false positive - that is, "Train too fat" and it would have been stopped.

I'll leave this post up for a few hours then likely delete both it and my tweets, thanks to your reaction.

I think you missed my point...  I agree people make mistakes.  I was just very surprised that they didn't see the error,  thats all...  I was actually congratulating you on your enthusiasm for the project..  I will keep my accolades to myself next time..
Reply
You freaked out that an engineer/designer made a mistake - I take that personally.
Reply
Plywood covering the removed concrete:

   

   
Reply
(01-15-2018, 08:43 AM)Canard Wrote: You freaked out that an engineer/designer made a mistake - I take that personally.

Here comes the drama... *yawn*
Reply


Nope, trying to swing the conversation back to stuff that’s actually important. See last post.
Reply
(01-15-2018, 10:23 AM)Canard Wrote: Nope, trying to swing the conversation back to stuff that’s actually important. See last post.

What could the reason be for re-pouring that section? Incorrect alignment of the track?
Reply
« Next Oldest | Next Newest »



Forum Jump:


Users browsing this thread: 11 Guest(s)

About Waterloo Region Connected

Launched in August 2014, Waterloo Region Connected is an online community that brings together all the things that make Waterloo Region great. Waterloo Region Connected provides user-driven content fueled by a lively discussion forum covering topics like urban development, transportation projects, heritage issues, businesses and other issues of interest to those in Kitchener, Waterloo, Cambridge and the four Townships - North Dumfries, Wellesley, Wilmot, and Woolwich.

              User Links