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According to their rules, everything has to be perfect before the line opens. If it were as you suggest, the line would have opened years ago. Of course, once it's open, if something causes part of the line to close, the rest of the line can be kept going, just as it does all the time on the subway system. It has to do with liability, and what's written into the contracts. I believe many of us on here, think these rules are dumb, and need to change for future projects, because it's looking like the current rules make it impossible for a new line to ever open.
There's also a lot of financial penalties in the contract for under performance during revenue service, as well as stimulation for when/how substantial completion can be declared.
 
they are really trying to make this whole process as slow and painful as possible...

* something* happened that was a cause for concern.

The line is out of service until they are satisfied that the concern is adequately addressed.

It could be a bit longer yet.
 
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.
 
There we are. A collision in the Mount Dennis yard.

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
 
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?
 
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
 
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?
 

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