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Kyle Campbell said:
The above ground portion doesn't use cbtc does it?
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Finch LRT does [Thales SelTrac, derived from the Vancouver Skytrain system] primarily to prevent bunching and provide transit control feedback. Being able to slow down the vehicles in-front of a problem is useful for preventing large gaps in service. I'm not sure about Eglinton but I don't see why they would disable CBTC outside of the tunnelled portion: they'll still want to know where the trains are located.

In both cases a human oversight is also required to intervene for roadway traffic concerns.

CBTC does not mean full automation of service.
 
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The way it works with the ION is when a crash happens the section where the crash gets isolated from the rest of the line, so if a crash happens let's say between Mill and Kitchener Market, trains will run from Fairway to Mill and then Kitchener Market to Conestoga with a bus bridge created between Mill and Kitchener Market.

Since Kitchener and Waterloo both have sections of single direction line (Duke St and Charles, Borden and Ottawa, King and Caroline) it's possible to keep the trains running through the line but it would create weird scheduling issues since you'd get too many trains on one side of the single line sections so it's more complicated doing it that way.
 
rbt said:
Finch LRT does [Thales SelTrac, derived from the Vancouver Skytrain system] primarily to prevent bunching and provide transit control feedback. Being able to slow down the vehicles in-front of a problem is useful for preventing large gaps in service. I'm not sure about Eglinton but I don't see why they would disable CBTC outside of the tunnelled portion: they'll still want to know where the trains are located.

In both cases a human oversight is also required to intervene for roadway traffic concerns.

CBTC does not mean full automation of service.
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The version of SelTrac used on the Finch West Line is a supervisory system with extremely limited ability to protect against headway deviation. It's an ATP.

To call it derived from the system used on the Skytrain (and SRT) is also an unfair statement. The interface is very similar, yes. But the back end of the system itself is not nearly as complex as an ATO/ATC system, nor is its level of communication between the equipment and the wayside. SelTrac as much as anything is now just a marketing term with multiple discrete systems being branded under it, rather than describing a set of technologies. For instance, the N/A system used by the TTC's legacy network is now branded as SelTrac as well - and yet, there is very, very little equivalency between it and any ATP or ATC or ATO system.

The system used on the surface sections of the Crosstown is a Bombardier product that is basically their equivalent to the version of SelTrac used on Finch West.

Dan
 
At City Council, Mike Colle was blasting the Premier on Bill 212. During the rant, he makes a comment that "He should complete the f-ing Eglinton Crosstown. After 13 years, you'd think he would focus in on finding out why the Eglinton Crosstown tunnel is sinking."

I know folks here are adamant that there's no crack in the Eglinton - Yonge station box. But I'm very curious if there's basis for Colle's comment.
 
Metroscapes said:
At City Council, Mike Colle was blasting the Premier on Bill 212. During the rant, he makes a comment that "He should complete the f-ing Eglinton Crosstown. After 13 years, you'd think he would focus in on finding out why the Eglinton Crosstown tunnel is sinking."

I know folks here are adamant that there's no crack in the Eglinton - Yonge station box. But I'm very curious if there's basis for Colle's comment.
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I don't think he knows anything - just like any of the other people at the City.
 
ishblack1 said:
If the tunnels were sinking they wouldn’t be testing them so frequently and so heavily.
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If the tunnels were sinking, they most certainly WOULD be testing them heavily! That's the whole point. Some sinkage would be expected - the question would be how much.

stevedean said:
I don't think he knows anything - just like any of the other people at the City.
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With TTC staff now regularly in the tunnels, if there was something going on, TTC senior staff should know about it. Colle's son is the Chief Strategy and Customer Service Officer for the TTC. If something is wrong, then surely Mike Colle would have heard.

On the other hand, perhaps he's been reading some of the same rumours we have. There's certainly been a FUBAR vibe to the whole thing in the last 18 months or so.
 
Metroscapes said:
At City Council, Mike Colle was blasting the Premier on Bill 212. During the rant, he makes a comment that "He should complete the f-ing Eglinton Crosstown. After 13 years, you'd think he would focus in on finding out why the Eglinton Crosstown tunnel is sinking."

I know folks here are adamant that there's no crack in the Eglinton - Yonge station box. But I'm very curious if there's basis for Colle's comment.
Click to expand...
This is a great opening for city reporters. CTV, Global, CBC --- where are you? Go interview Mike Colle and ask him what basis he has for that comment. Either it will turn out he made it up, or we will learn something we didn't know.
 
Metroscapes said:
At City Council, Mike Colle was blasting the Premier on Bill 212. During the rant, he makes a comment that "He should complete the f-ing Eglinton Crosstown. After 13 years, you'd think he would focus in on finding out why the Eglinton Crosstown tunnel is sinking."

I know folks here are adamant that there's no crack in the Eglinton - Yonge station box. But I'm very curious if there's basis for Colle's comment.
Click to expand...
I figure that remark was a bit of a throwaway. It’s unfortunate it detracts from his main point: Bill 212’s approach to congestion takes away from the non-quick-fix solutions. (paraphrased)
 
Metroscapes said:
At City Council, Mike Colle was blasting the Premier on Bill 212. During the rant, he makes a comment that "He should complete the f-ing Eglinton Crosstown. After 13 years, you'd think he would focus in on finding out why the Eglinton Crosstown tunnel is sinking."

I know folks here are adamant that there's no crack in the Eglinton - Yonge station box. But I'm very curious if there's basis for Colle's comment.
Click to expand...
If the tunnels are sinking than Mike Colle shouldn’t be placing blame on the current premier but recognize that the previous Liberal Government, which he was a member of, and their buddies should be held responsible for the poor planning and construction.
 
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Jimvee said:
If the tunnels are sinking than Mike Colle shouldn’t be placing blame on the current premier but recognize that the previous Liberal Government, which he was a member of, and their buddies should be held responsible for the poor planning and construction.
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Yeah, cause Kathleen Wynne is a soil engineer and she should have known better.
 
Agreed, it's absurd to blame a government of any political party for an engineering deficiency. Governments set policy and provide funds, they're not capable of designing or constructing anything.

In Crosstown LRT's case the entire design and construction process was outsourced to a consortium of publicly traded companies https://www.crosslinxtransit.ca/who-we-are/our-parent-companies/. They performed or contracted all detailed design and construction for the system and must be held accountable for delivering a useable system. ACS & Dragados can probably walk away but you'd think EllisDon, AECON and AtkinsRealis would want work from the provincial government in the future. They need to step up and sort this out.
 
urbancog said:
Agreed, it's absurd to blame a government of any political party for an engineering deficiency. Governments set policy and provide funds, they're not capable of designing or constructing anything.

In Crosstown LRT's case the entire design and construction process was outsourced to a consortium of publicly traded companies https://www.crosslinxtransit.ca/who-we-are/our-parent-companies/. They performed or contracted all detailed design and construction for the system and must be held accountable for delivering a useable system. ACS & Dragados can probably walk away but you'd think EllisDon, AECON and AtkinsRealis would want work from the provincial government in the future. They need to step up and sort this out.
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You may recall Metrolinx procured the tunnel boring years before they even brought in the Crosslinx consortium (SNC, etc).

From what I understand, this was one of the major failings of this project. The initial tunnelling design provided to bidding consortia was not what was ultimately delivered, and Crosslinx was forced to change their designs to suit.
 
Metroscapes said:
Yeah, cause Kathleen Wynne is a soil engineer and she should have known better.
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No, however the government he was a part of signed off on the team taking on the construction, I’m saying if he’s throwing stones at the government than take a look in the mirror.
 
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