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Just got a chance to read the presentation for the update tomorrow. I dont quite understand their tunneling scheduling. Why is it going to take until Feb to finish the last 500m of the western tunnel when it took the same time to bore through 3X the distance? Same for the east. Feb 2018 just to tunnel 1.5km???!! The logic doesnt seem right.....
 
cplchanb said:
Just got a chance to read the presentation for the update tomorrow. I dont quite understand their tunneling scheduling. Why is it going to take until Feb to finish the last 500m of the western tunnel when it took the same time to bore through 3X the distance? Same for the east. Feb 2018 just to tunnel 1.5km???!! The logic doesnt seem right.....
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Huh? There are at most 30 metres left to bore for the west tunnels, and around 1.5 km for the east tunnels, so I'm not sure where the 500 figure comes from. As to why it could take until February? Could be the demolition of the abandoned bus terminal and the digging of an extraction shaft. I don't think either of those two tasks have started yet.
 
someMidTowner said:
Huh? There are at most 30 metres left to bore for the west tunnels, and around 1.5 km for the east tunnels, so I'm not sure where the 500 figure comes from. As to why it could take until February? Could be the demolition of the abandoned bus terminal and the digging of an extraction shaft. I don't think either of those two tasks have started yet.
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http://www.ttc.ca/About_the_TTC/Com.../Reports/Item_6_Light_Rail_Transit_Update.pdf

"More than 6 km complete. Scheduled completion date is February 2017." So this report is out of date...

Wait....they havnt started demoing yet? They announced themselves that demoing was supposed to have started last month...shouldnt take that long to take down several flimsy old shelters.....shouldve at least started tearing out the underground portion by now

Even still....shouldnt take over 1.5years to get the eastern tunnel in... it didnt even take that long to get from Allen to Yonge....If theyre holding it to finish the extraction shaft they really botched the construction scheduling...
 
cplchanb said:
Wait....they havnt started demoing yet? They announced themselves that demoing was supposed to have started last month
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They may have started, I haven't walked by for a few weeks. I may just go up to the top of the Yonge and Eg retail addition to snap some photos in the morning
 
The drive from Allen to Duplex has gone extremely well, with no major unplanned stoppages. It shouldn't be a concern if it takes time to complete the extraction. Overall, they are likely well within schedule.

You can be sure that the schedule is very conservative, partly so there is very low probability of any bad news, and partly so the contractor has every opportunity to declare an on-time completion and avoid penalties.

Being early is a good problem to have.

- Paul
 
The west tunnel was scheduled for completion in January 2017, so we're
someMidTowner said:
They may have started, I haven't walked by for a few weeks. I may just go up to the top of the Yonge and Eg retail addition to snap some photos in the morning
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I walked by last week and hadn't noticed anything. Mind that I wasn't explicitly looking for construction, but you'd think demolition was something I'd notice.
 
crs1026 said:
The drive from Allen to Duplex has gone extremely well, with no major unplanned stoppages. It shouldn't be a concern if it takes time to complete the extraction. Overall, they are likely well within schedule.

You can be sure that the schedule is very conservative, partly so there is very low probability of any bad news, and partly so the contractor has every opportunity to declare an on-time completion and avoid penalties.

Being early is a good problem to have.

- Paul
Click to expand...

The west tunnel was scheduled for completion in Jan 2017. So depending on how quickly they can dig the extraction shaft, we could be several months ahead of schedule. I wonder if that means they might be able to bump the start of track work installation from Mar 2017 to sometime in 2016.
 
This begs the question, why didn't we just buy off the shelf units for this project? Then we wouldn't need a prototype for testing, instead we'd simply buy whatever was in Bombardier's catalogue. Are Toronto's needs (as opposed to "wants") so different than the rest of Bombardier's customers?
 
Admiral Beez said:
This begs the question, why didn't we just buy off the shelf units for this project? Then we wouldn't need a prototype for testing, instead we'd simply buy whatever was in Bombardier's catalogue. Are Toronto's needs (as opposed to "wants") so different than the rest of Bombardier's customers?
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The car design is generic, but there are always small details that will vary from buyer to buyer. Nothing is "off the shelf" when you have different shops doing the work for the first time, either. Any production run will stop after the first couple of units and verify that everything is working OK.

For that matter, the PCC car was an "off the shelf" design - but look at how many different variations Toronto ended up with. And lots of things had to be tweaked when they bought batches from other operators, even though those cars had been in service successfully for years.

- Paul
 
AlvinofDiaspar said:
Put them on notice - any deviation from the timetable and the contract is over.

AoD
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Time to exclude Bombardier from the big electric GO train contract that will be awarded in a few years. At the very least, Metrolinx needs to get rid of any "Canadian content" restrictions so that foreign companies are on a level playing field.

The last thing we need is Bombardier delaying GO electrification as well.
 
I wonder what the terms of the contract are. If Bombardier's contract for light rail vehicles for Metrolinx or streetcars for the TTC gets delayed more than X months, does Metrolinx or the TTC have the right to cancel it? Maybe we will end up with Siemens or Alstom LRVs on Eglinton.
 
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