That depends on whether the equipment has "over rotation" sensors as part of its installed equipment. And it might, but it's also possible that the carbodies didn't move far enough away to trigger it until it attempted to traverse the crossover. It is noted in the preliminary TSB report that the emergency brake application was "train initiated", which means that something on the train itself detected that something was amiss.Wouldn't an alarm or some automatic braking occur during any derailment?
4 + power unit...Is there even that much demand? Going from 2 car married sets to 6 cars?
What are they thinking? Half hour service?4 + power unit...
but pedantry aside, the current sets are staying and will be operated in pairs, so Ottawa certainly thinks there is demand. I do get the impression that even if this may be a little excessive, the current capacity is on the low end of what should really be there. Combined with the line's inclination toward relatively infrequent service, high capacity trains DO make sense for Trillium.
Every 12 minutes. Since a good chunk of the line is single tracked, that's as much as they can get away with.What are they thinking? Half hour service?
In the morning rush, it was a regular occurrence for students to be left behind at Mooney's Bay and Carling stations.Is there even that much demand? Going from 2 car married sets to 6 cars?
They cheaped out on Phase 2. This was the opportunity to double track the line with the current lengthy closure. All we are doing is pushing back the problem to the future. As it stands, proper double tracking will require another protracted shutdown likely measured again in a timeframe of 2 years or more.To bad they couldn't had started to double track in a number of locations, but would be costly and noisy to move the the rock face back. From what I saw the last time we were there, the south end that was single track was being double as well Bayview Station. Could be wrong on what I was seeing.
From construction photos I have seen, signal track where it could be double for the extension.
At this stage, a single train is only needed regardless of COVID decline as I never saw pack trains during our visits. If it was every 15 minutes before expansion, then headway has increase over the decade from what I remember what it use to be. Getting it down to 12 is a must, other than being a waste going to 30 minutes
They cheaped out on Phase 2. This was the opportunity to double track the line with the current lengthy closure. All we are doing is pushing back the problem to the future. As it stands, proper double tracking will require another protracted shutdown likely measured again in a timeframe of 2 years or more.
The southern portion of Phase 2 between Leitrim and Limebank is to be double tracked. I believe this is to provide more flexibility for train passing but in some sense, it is weird that the section with the least ridership will be double tracked first, although the portion on the north end of the route between Bayview and Gladstone will also be double tracked.