Toronto Eglinton Line 5 | ?m | ?s | Metrolinx | Arcadis

[Northern Light]

So how many days longer until the RSD is finished? Would that pause be a snag or a faulty?

You'll likely see something in the media soon. I can't say more about it right now. On the RSD, I think that depends on how soon it restarts, and whether there is an insistence on re-starting the clock. I'm not privy to any leanings on that point.

 

[ShonTron]

There we are. A collision in the Mount Dennis yard.

Eglinton Crosstown LRT testing stopped — source says two trains collided

The Eglinton Crosstown LRT had begun its final round of testing on Oct. 7, but two trains collided in the Mount Dennis train yard on Thursday, leading to a pause in the test, according to a source.

www.thestar.com

 

[stevensontransit]

There we are. A collision in the Mount Dennis yard.

Eglinton Crosstown LRT testing stopped — source says two trains collided

The Eglinton Crosstown LRT had begun its final round of testing on Oct. 7, but two trains collided in the Mount Dennis train yard on Thursday, leading to a pause in the test, according to a source.

www.thestar.com

There we found the culprit! But at least they say testing will resume shortly!

 

[cplchanb]

There we are. A collision in the Mount Dennis yard.

Eglinton Crosstown LRT testing stopped — source says two trains collided

The Eglinton Crosstown LRT had begun its final round of testing on Oct. 7, but two trains collided in the Mount Dennis train yard on Thursday, leading to a pause in the test, according to a source.

www.thestar.com

ok if thats the case then it shouldnt be too bad since it doesnt affect the mainline. looks like somebody was daydreaming and caused a collision. shouldnt need to restart

 

[stevensontransit]

ok if thats the case then it shouldnt be too bad since it doesnt affect the mainline. looks like somebody was daydreaming and caused a collision. shouldnt need to restart

Agreed with you, if they say testing will resume shortly in that article, would that mean not a restart?

 

[APTA-2048]

ok if thats the case then it shouldnt be too bad since it doesnt affect the mainline. looks like somebody was daydreaming and caused a collision. shouldnt need to restart

This happened in the yard, apparently under automated control with no one driving.

 

[smallspy]

This happened in the yard, apparently under automated control with no one driving.

Not apparently.

One of the "features' of the ATC/ATO is completely unattended operation of equipment within the yard limits. This means that trains can be remarshalled, sent for cleaning and servicing, and prepped for entry into service or stored after it without having anyone trackside or onboard.

That the system allowed an accident in this configuration is extremely problematic, as it is set up the same as the mainline signal system and supposed to offer the same safeguards as it - but because it operates at low speeds and without passengers is deemed to be "safe enough" in its current configuration to operate unattended (versus on the mainline, were there would need to be additional measures to protect the trains from the public and vice versa).

If it happened in the yard, it can happen elsewhere in the system. For something as safety-critical as the signal system, that is unacceptable. Which is why it's been closed since Thursday - they need to inspect every single potential route capable within the system and ensure that there are no other "blind spots" that would allow this to happen again. And that's why I'm skeptical that testing will resume quickly.

Dan

 

[nfitz]

If it's a software problem, then I think it could be a long time before testing resumes. Maybe next year!

 

[TOtramz]

Not apparently.

One of the "features' of the ATC/ATO is completely unattended operation of equipment within the yard limits. This means that trains can be remarshalled, sent for cleaning and servicing, and prepped for entry into service or stored after it without having anyone trackside or onboard.

That the system allowed an accident in this configuration is extremely problematic, as it is set up the same as the mainline signal system and supposed to offer the same safeguards as it - but because it operates at low speeds and without passengers is deemed to be "safe enough" in its current configuration to operate unattended (versus on the mainline, were there would need to be additional measures to protect the trains from the public and vice versa).

If it happened in the yard, it can happen elsewhere in the system. For something as safety-critical as the signal system, that is unacceptable. Which is why it's been closed since Thursday - they need to inspect every single potential route capable within the system and ensure that there are no other "blind spots" that would allow this to happen again. And that's why I'm skeptical that testing will resume quickly.

Dan

Yet another signal issue!
Correct me if I'm wrong but last time it took several months to fix all the software bugs?

 

[Allandale25]

Yet another signal issue!
Correct me if I'm wrong but last time it took several months to fix all the software bugs?

At one more, weren't they even mentioning which version of the software they had started using? ie 7

 

[Steve X]

If it's a software problem, then I think it could be a long time before testing resumes. Maybe next year!

Let’s just hope they just didn’t mark that block properly oppose to some systematic bug. Then again, I have no belief they can fix a simple issue quickly

 

[ElrondHubbard]

When two LRT vehicles collide in the maintenance yard and the line hasn’t opened yet, do they make a sound?

If two Metrolinx executives’ heads collide at a press conference where they declare for the 1500th time they’re making relentless progress, do they sound like two coconuts?

Being more serious, this could be an easy fix if e.g. someone entered bad info that the software relied on. But if the software itself messed up even after being given valid data, that’s a disaster. All bets are off for who knows how much longer?

And how likely are we to learn the difference from Metrolinx? A fart’s chance in a hurricane, is how. What a Charlie Foxtrot.

 

[Admiral Beez]

When two LRT vehicles collide in the maintenance yard and the line hasn’t opened yet, do they make a sound?

FFS, this is one cursed project.

 

[turini2]

@chittimarco.bsky.social
The next bet is: what will open first, Eglington [sic] Crosstown or REM's West Island branch (which is generically announced for spring 2026)?
Or maybe REM airport branch?

https://bsky.app/profile/chittimarco.bsky.social/post/3m3q5xl3ins2l

 

[turini2]

Just so I get this right - Line 5 Eglinton will be GoA 2 (automatic train operation, similar to Line 1) in the tunnelled section and GoA 1 on the surface. In the yard, it will be GoA 4 (unattended train operation?