News   Dec 20, 2024
 3.5K     11 
News   Dec 20, 2024
 1.3K     3 
News   Dec 20, 2024
 2K     0 

Toronto Crosstown LRT | ?m | ?s | Metrolinx | Arcadis

The line runs automated in its grade-separated right-of-way underground/elevated (Automatic Train Operation or ATO), and once it emerges at Laird, it switches to manual control since it runs on street (Automatic Train Protection or ATP). Transitioning between the two systems on one line mid-service I believe is somewhat unconventional and is probably behind some of the headaches.
having a section above ground and not grade separated was such an idiotic decision
 
This headline on CP24 really sums it all up! Certainly good new that it COULD open in 2025!


1732905298586.png
 
having a section above ground and not grade separated was such an idiotic decision
Hear, hear!

EDIT: Hopefully sometime in the future we can consider converting the entire Eglinton line to the same standards as the Ontario line. Including grade separating the "Golden Mile" stretch.
 
Last edited:
Can someone explain this to me like I'm a 5 year old - why do we need to come up with new software for what should be a pretty basic LRT system? Are there not other LRT systems that we could leverage the software from?
Is there anything really special with how Line 1 or Line 2 that made the training time so much less?
It seems like we're trying to reinvent the wheel on something that didn't need it.
It's not new.

This is an off-the-shelf product that then gets modified to suit the system that it is running on. It may also require specific changes to suit the particular hardware that it is running on or interfacing with (different signal vendors, axle counters, dealing with phase harmonics, etc.) but all-in-all it starts out as a standard suite of parts.

Now, that said, it is not the same system as used on the subway, or was used on the SRT. So the training is also a little different, although mainly because of a change in terminology.

For the record, the training time - 30 days per class - is the exact same amount of training as on the subway or SRT.

Dan
 
Agree, but the same question..... did ML buy a proven product or was this custom designed during the project execution?

- Paul
Off-the-shelf proven product that needs to be modified to suit the local needs, standards and regulations.

This is the same idea as the Alstom system that has been installed on the subway, although that was trickier and more complex as it was installed over an existing system as it operated.

Dan
 
For the record, the training time - 30 days per class - is the exact same amount of training as on the subway or SRT.
Help me understand this one - has training not been going on for months already? How many batches of drivers do they need to train?
How is it that in the 50s/60s they only needed 1 month of training TOTAL - and now it takes months upon months with no official date given.
 
Happen to see a 2 car train at Black Creek today heading to the yard. It was doing about 10km making the turn into the yard off the mainline and real slow doing so..
 
I would remind everyone that the software issues did not take that long to fix, nor were the big holdup on the project. All eyes on any slowdown are immensely amplified at this juncture; it sounds pretty routine/manageable.

Agree, but the same question..... did ML buy a proven product or was this custom designed during the project execution?

- Paul
The answer from Metrolinx would most certainly be 'YES'.
 
Exactly!
You're telling me, there is no LRT system like this in the world? Even in Canada, are there not above/below ground systems in Calgary, Edmonton, and Ottawa?
We really had to create a brand new system for the very special Eglinton...

KW's LRT had similar issues with the signaling software when the line initially opened. KW's operates with LOS and ATP with ATP purely for the dedicated corridors (Mill to Fairway along the CN and Hydro right of way, Uptown Waterloo to Northfield along the existing train right of way) however the transition from LOS to ATP was causing problems initially and it got to the point where they said we'll open the line without having ATP functional and purely have LOS on the entire system. Eventually they got ATP to work and then patched it into the software but this was easily a couple of months into the line already operating.

Eglinton could have taken KW's system but the software is for ATP/LOS so you'd have to still significantly alter it if you were to take it for line specific issues.
 
KW's LRT had similar issues with the signaling software when the line initially opened. KW's operates with LOS and ATP with ATP purely for the dedicated corridors (Mill to Fairway along the CN and Hydro right of way, Uptown Waterloo to Northfield along the existing train right of way) however the transition from LOS to ATP was causing problems initially and it got to the point where they said we'll open the line without having ATP functional and purely have LOS on the entire system. Eventually they got ATP to work and then patched it into the software but this was easily a couple of months into the line already operating.

Eglinton could have taken KW's system but the software is for ATP/LOS so you'd have to still significantly alter it if you were to take it for line specific issues.
And the biggest issue in KW was crosstalk between vehicles entering and exiting ATP sections at the same time which would cause vehicles to emergency brake with the ATP display showing “HH” as if either vehicle had infringed on the others protected moving block.
 
KW's LRT had similar issues with the signaling software when the line initially opened. KW's operates with LOS and ATP with ATP purely for the dedicated corridors (Mill to Fairway along the CN and Hydro right of way, Uptown Waterloo to Northfield along the existing train right of way) however the transition from LOS to ATP was causing problems initially and it got to the point where they said we'll open the line without having ATP functional and purely have LOS on the entire system. Eventually they got ATP to work and then patched it into the software but this was easily a couple of months into the line already operating.

Eglinton could have taken KW's system but the software is for ATP/LOS so you'd have to still significantly alter it if you were to take it for line specific issues.
For what possible reason would they need ATP for the dedicated sections of ION? At the speeds and frequencies they run, surely a meeting between trains isn't very likely? This isn't a subway service running every 2 minutes...
 
For what possible reason would they need ATP for the dedicated sections of ION? At the speeds and frequencies they run, surely a meeting between trains isn't very likely? This isn't a subway service running every 2 minutes...

It's not likely but if a train were to get super delayed once they are operating at 5-7.5 minute frequencies it could happen. I know currently when a train gets delayed from loading and unloading during rush hour it'll often times get delayed by 3-4 minutes, so by the time KW gets to those higher frequencies you could get trains catching each other, it's certainly better to have it in that case then not.
 
Help me understand this one - has training not been going on for months already? How many batches of drivers do they need to train?
How is it that in the 50s/60s they only needed 1 month of training TOTAL - and now it takes months upon months with no official date given.
30 days per class, and at least for now they are able to teach two classes simultaneously - a morning class and an afternoon class.

2 sets of classes have already completed their training*, with the third not quite half-way through.

Training on the subway has gotten a bit more intense with the addition of more equipment and capabilities to the trains, and a far more complex signal system.

*I saw that 2 sets of classes have completed training, but that is not true for the second class. They had a substantial portion of their at-the-throttle training curtailed due to the signal system issues in October.The hope is that the signal system will be stable enough - and indeed, that appears that it might now be the case - to allow them to finish that portion of their training during the simulated revenue service.

I would remind everyone that the software issues did not take that long to fix, nor were the big holdup on the project. All eyes on any slowdown are immensely amplified at this juncture; it sounds pretty routine/manageable.
Those were the original software problems going back a year or so, and well before everything was completed enough to allow TTC access for training.

This new problem is one that had not been seen before, and was deemed to be safety-critical.

Dan
 
Those were the original software problems going back a year or so, and well before everything was completed enough to allow TTC access for training.

This new problem is one that had not been seen before, and was deemed to be safety-critical.

Dan
I understand. I was just trying to convey that we'd all be more forgiving of it if the construction portion went smoothly...
 

Back
Top