[Metroscapes]

Looks like a rescue train more than anything. I’m unaware of anything happening though.

To expand on this, a similar rescue train was in action on the Kitchener Line last week. It was suggested in the comment section that having the rescue loco coupled to two cars got around speed restrictions and allowed it to go at MAS (Maximum Authorized Speed), as it gave it more braking performance. Does that jive with anyone with that kind of knowledge?

 

[dowlingm]

To expand on this, a similar rescue train was in action on the Kitchener Line last week. It was suggested in the comment section that having the rescue loco coupled to two cars got around speed restrictions and allowed it to go at MAS (Maximum Authorized Speed), as it gave it more braking performance. Does that jive with anyone with that kind of knowledge?

VIA sometimes operates a similar rescue setup from Montreal with a loco at either end and an LRC in between - I recall seeing pictures of one being sent to fetch a dead Siemens trainset on the Quebec route a few months ago.

 

[smallspy]

To expand on this, a similar rescue train was in action on the Kitchener Line last week. It was suggested in the comment section that having the rescue loco coupled to two cars got around speed restrictions and allowed it to go at MAS (Maximum Authorized Speed), as it gave it more braking performance. Does that jive with anyone with that kind of knowledge?

Not braking - CN's signalling system requires at least 12 axles in order to accurately trigger the signals and crossing detection. Thus, for GO equipment, a loco with 2 cars is the minimum needed to meet that requirement.

Dan