Addendum to previous post: Just searching for exact reference to the 'Toronto Viaduct Case' above, and tripped across a new reference that details the Parliament's supreme power over federally regulated Railways and Rights of Way.
A Short Treatise on Canadian Constitutional Law
...etc....
https://books.google.ca/books?id=pYc43S0cjFIC&pg=PA226&lpg=PA226&dq=Grand+Trunk+Railway+Co.+v.+City+of+Toronto+parliament+of+canada+good&source=bl&ots=wIMad3Ycg6&sig=eMhe6XMVh3AenHWGbGqsNYHoYWk&hl=en&sa=X&ved=0ahUKEwjctayjjOHWAhVi4oMKHTUwBIoQ6AEIPzAE#v=onepage&q=Grand Trunk Railway Co. v. City of Toronto parliament of canada good&f=false
That "massive shoe yet to drop" just got bigger...
Btw: Scroll back from the link provided, much more relevant detail supplied prior to rather than after what's displayed above. I'm still digesting it, and will more directly link/reference sections later.
Late Addendum: Curiously, Metrolinx chose to incorporate GO Rail under Federal Jurisdiction, not Provincial. This might be for reasons of interoperability on Class One railways (CN, and CP) which are federally regulated. By doing so, however, and Metrolinx now having ownership of the track RoW upon 'The Esplanade' corridor, the Feds retain complete regulatory jurisdiction of that corridor. I'm not fully aware of all the implications, save for one that's beyond doubt:
The OMB has absolutely no power over the corridor, neither does the Province in any manner or form save for what might have been acceded them in later Federal Acts.
Oct 11 Addendum to clarify:
GO Transit might not have incorporated under Federal jurisdiction as I earlier claimed, it was 'created' under its own provincial act, but federal regulatory jurisdiction still applies on certain aspects, and as SCC judgments from a century ago show (many listed above) unless the railway is legally abandoned under the Transport Act, it cannot be 'transfered' to provincial regulation.
It appears that GO Transit itself is provincially regulated operation, but since the trackage through the USRC was federally regulated, it remains so, even if ownership of it changes.
Just reviewing cases on it now, and note the ruling Act that CN quotes in this instance:
Letter Decision No. LET-R-178-2006
July 5, 2006
[...][CN states that to acquire the attributes of a federal railway company, such an undertaking must operate an international, interprovincial railway or railway line or have been declared to be for the general advantage of Canada under subsection 92(10) of the
Constitution Act, 1867, 30 & 31 Victoria, c. 3 (U.K.). According to CN, none of these apply to AMT. While CN acknowledges that AMT's equipment is operated by CN under operating agreements, this is not sufficient to make MRI the operator of a federal railway.
A railway will be deemed to be within the legislative authority of Parliament in the following ways if: ][...]
https://otc-cta.gc.ca/eng/ruling/let-r-178-2006
CTA themselves state in a related decision:
Decision No. 273-R-2001
May 24, 2001
[...][The
Constitution Act, 1867 and the CTA therefore provide for three ways in which a railway work or undertaking may be brought within the jurisdiction of the Parliament of Canada. First, a railway work or undertaking will be subject to the jurisdiction of the Parliament of Canada if the work or undertaking connects, or crosses the borders of, a province (paragraph 92(10)(
a) of the
Constitution Act, 1867). Second, even if a railway work operates only within the boundaries of a province, it will be subject to the jurisdiction of the Parliament of Canada if the work is declared to be for the general advantage of Canada (paragraph 92(10)(
c) of the
Constitution Act, 1867). Third, paragraph 88(2)(
b) of the CTA makes a railway work or undertaking that is owned, controlled, leased or operated by a person who operates a railway within the legislative authority of Parliament, even if it operates only within the boundaries of a province, subject to the jurisdiction of the Parliament of Canada.
- the railway work and undertaking connects, or crosses the borders of a province (paragraph 92(10)(a) of the Constitution Act, 1867);
- a company operates a railway across international borders (paragraph 88(2)(b) of the CTA);
- the work is declared to be for the general Advantage of Canada (paragraph 92(10)(c) of the Constitution Act, 1867);
- the railway is owned, controlled, leased or operated by a person who operates a railway within the legislative authority of Parliament (paragraph 88(2)(b) of the CTA); or
- the railway is an integral part of an existing federal undertaking.
- [...]
https://www.otc-cta.gc.ca/eng/ruling/273-r-2001
The SCC has deemed/ruled in many instances referenced prior that the Esplanade Corridor (Viaduct) is "for the general advantage of Canada ".