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smallspy said:
It's not true.

What the crews have been doing of late is LIDAR scanning every single point of the ROW. They do this to ensure clearances around the dynamic envelope of the trains, locations of platform edges and signals, catenary, etc. Once they have this, they will be able to hand that information over to Metrolinx (and the TTC) as one of the final steps required prior to the actual final sign-off on the line.

The crews doing that scanning do not have the technology to discern how far out the rails might be, if they were out. The LIDAR equipment is accurate, but not as accurate for the rail profile, crosslevel, etc. as the specialized equipment that is used for that task. That equipment has already been used and to the best of my knowledge has verified the rails' alignment.

If somehow the rails where so far out of whack as to require immediate replacement, they would not be running trains at the frequencies and speeds that they have been.

Dan
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makes sense... then again that lady was talking to an individual worker on the line who probably doesnt know the full picture and was making assumptions...
 
cplchanb said:
makes sense... then again that lady was talking to an individual worker on the line who probably doesnt know the full picture and was making assumptions...
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For additional context I had a skim through her profile. She’s not just some twitter troll but the majority of her tweets are rather politically motivated. Not meaning to dismiss her for it but you may regard her statements as exaggerative or sensational… perhaps embellished?
 
reinventingthewheel said:
For additional context I had a skim through her profile. She’s not just some twitter troll but the majority of her tweets are rather politically motivated. Not meaning to dismiss her for it but you may regard her statements as exaggerative or sensational… perhaps embellished?
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If there really was such a huge problem like that with the tracks they wouldn't have been testing with higher frequency over this past weekend. They've already done a profile and gauge analysis of the tracks and while there was an issue months ago on the surface section they fixed that during an early bout of warm weather before spring started
 

Daytime and Overnight Track Grinding on Eglinton Avenue East between Leslie Street and Kennedy Road​

As early as Wednesday, May 22, 2024​

1717686a-2049-a066-8274-5ff7395561f9.jpg
What Work is Taking Place?
As early as Wednesday, May 22, 2024, crews will be performing overnight track grinding works on Eglinton Avenue East, between Leslie Street and Kennedy Road.

Crews will move along the guideway performing work on the eastbound and westbound tracks. Periodic turn restrictions and lane reductions may be required while work takes place in the intersections.

A Traffic Control Personnel and/or Paid Duty Officer will be present while work takes place in the intersections. One lane of traffic will be maintained at all times on Eglinton Avenue East.

This work is expected to take place during the daytime and overnight between 3:00 p.m. and 7:00 a.m., for approximately 1 month. Upon completion of this work, periodic short-term lane reductions may be required on Eglinton Avenue East to facilitate special activities.

What to Expect
Daytime and overnight noise from construction activities, including grinding metal, can be expected. Crews will move along the guideway performing work on the eastbound and westbound tracks.

Periodic turn restrictions and lane reductions may be required while work takes place in the intersection. A Traffic Control Personnel and/or Paid Duty Officer will be present while work takes place in the intersection.

One lane of traffic in each direction will be maintained at all times on Eglinton Avenue East. Expect delays while traveling through the area.

HOURS OF WORK
  • As early as Wednesday, May 22, 2024, for approximately 1 month.
  • Work is expected to take place between 3:00 p.m. and 7:00 a.m.
  • Work May be rescheduled due to inclement weather or unforeseen circumstances.
  • Work may be longer or shorter than expected.
TRAFFIC DETAILS
  • Periodic turn restrictions and lane reductions may be required while work takes place in the intersections.
  • A Traffic Control Personnel and/or Paid Duty Officer will be present while work takes place in the intersections.
PEDESTRIAN DETAILS
  • No changes to the current pedestrian routes are expected as a result of this work.
TRANSIT INFORMATION
  • Access to TTC will be maintained at all times.
  • Please visit www.ttc.ca for more information.
 
allengeorge said:
Is that track grinding related to the info in the tweet above?
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Probably not.

It may be as simple as conditioning the surface of the rail in preparation for the ramping up to mock service.

It may also be that they discovered vibration issues in places, and grinding a new profile into the rail head could resolve that.

Dan
 
jordanmkasla2009 said:
The speed limit for cars on the section of Eglinton Ave from Brentcliffe Rd to Kennedy Rd is 50 km/h. the LRT is limited to 60 km/h on the surface section (from the portal east of Brentcliffe Rd to the portal west of Kennedy Rd.)
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The TTC will just operate at 50 km/h even when 60 is allowed.
 
crs1026 said:
It's all about the schedule. Sure, if the schedule is padded, operators will slow down to avoid getting ahead of their timing. Set a proper schedule and they will use the line to its full extent.

- Paul
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Another thing that would help is if the TTC used headway based schedule operation instead of timed schedule based operation, but it's wishful thinking that's not going to happen with them. And something that would never even be considered with Leary around.
 
Amare said:
Another thing that would help is if the TTC used headway based schedule operation instead of timed schedule based operation, but it's wishful thinking that's not going to happen with them. And something that would never even be considered with Leary around.
Click to expand...

I do think that Crosstown may be more reliable on headways than surface streetcars, because the traffic signalling will kick in if a car is behind schedule, and because there will be few potential obstructions to create bunching.

The potential problem will mostly be padding either en route or at the ends of the route.

I wonder if operators will be scheduled on a staggered basis similar to the subway so that they have rest breaks without holding tramsets at the end of the line.

- Paul

 
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