[ownthesky]

Would it be fair to say that the Ontario line is going to be to Toronto what the Elizabeth line is to London?

I ask because, I'm wondering if a western extension of the Ontario line could be similar to the Elizabeth line east of Whitechapel. Have the line fork off into two directions. One to Mimico, and the other up to Eglinton.

View attachment 621170View attachment 621172

Mimico is supposed to get essentially subway level service soon with extremely frequent diesel trains, with electric multiple units just like a subway in the years follow that. Why would you spend billions of dollars just to duplicate an existing system?

 

[ProjectEnd]

 

[officedweller]

Why are they using catenary instead of a third rail for the Ontario line?

December 2020 Preliminary Design Business Case excerpt.
Others have noted that third rail DC has a limit of 750V, so once they decided to use 1500V, it had to be overhead catenary.

Here are the catenary references from the December 2020 Preliminary Design Business Case.

NOTE: It'll be an overhead 1500 volt DC system, so the electrical transformers and rectifiers will presumably be in substations,
not on-board as noted in the articles posted by W.K. Lis above for ac systems, and the issues with added vehicle weight won't arise.
1500 volts DC is also a step up from the typical 750 volts DC.
The article posted by W.K. Lis also says that 1500 volts DC (vs 750 volts DC) allows wider spacing / fewer substations.

https://assets.metrolinx.com/image/upload/v1663237577/Documents/Metrolinx/2020-12-08-Ontario-Line-PDBC-Public-Final.pdf

 

[Bojaxs]

Mimico is supposed to get essentially subway level service soon with extremely frequent diesel trains, with electric multiple units just like a subway in the years follow that.

None of this is happening "soon". GO trains will not be transitioning to EMU's in our lifetime. Metrolinx owns nearly 1000 bilevel coaches and is in the process of repainting and refurbishing nearly all of them.

Why would you spend billions of dollars just to duplicate an existing system?

The purpose of the extension is so riders can get off at Mimico or Exhibition and go to Humber Bay, High Park, Roncesvalles, Parkdale, etc.
The Ontario line can act as infill stations for the Lakeshore West line.

Same with an extension up to Mt. Dennis or somewhere on the western portion of the Eglinton line. Put an Ontario line station on St. Clair instead of putting another GO train station on the Kitchener line.

Rough idea of where I would put the stations.
* Green dots represent OL stations with connections to GO train stations.

- Mt Dennis
- Mimico
- Exhibition

Future Stockyard/ Scarlet GO station with possible Milton line improvements?

** Ignore the light blue colour I used to draw out the extension. I'm not suggesting the entire extension be a joint OL-GO corridor. Most of this would be tunneled. Particularly the extension up to Mt. Dennis.

 

[reinventingthewheel]

Users tune into this thread for the active developments, let’s filter out some of the other drivel.

There is a separate thread here for discussion of the OL extension north of Eglinton. Post there or create another thread for the west extension if you wish.

 

[kotsy]

Ordinance Park emergency exit update: