CP signal maintainer maintains rusholme road signals today same as is done on the spur to Vesivius. It’s the same arrangement.

You are correct on the Vesuvius spur which also remains CP (serviced by Trillium under contract). Both spurs are joint CN/CP ownership after the CASO was handed off in 1985. CP handed it immediately to the TH&B who added it to their area operations, after TH&B was merged into CP in 1987 the CP Welland crews continued to service both spurs. As things retreated other arrangements were made – the diamond at Netherby was in place until 2003, after that time new arrangements with martech/etc were put into place. I’m not exactly sure when the mainline through Coyle yard was removed, but current maps indicate CP still owns that track in Welland but as we know Trillium performs the service.

While I may not have all the details I can share with you the CASO article from the TH&B Historical Society recently written by John Eull, it’s complete to the 2000′s and quite good and explains in great detail how it was all serviced, consolidated and changed, in fact it’s a great history of how the current service came to be in the former TH&B Territory.

The Port Colborne stuff is even more fascinating..