Northern Light
Superstar
In what way? It's twice the length for 30% more cost and again, I've been over this ad nauseum. The only benefit to the RL is that it had theoretical 20% larger capacity on a project that needs only 1/2 of the projected capacity the OL is planning for, and the OL still provides more capacity than the existing subway system.
Unless you like deep stations and overpriced infrastructure, the OL is a much better design.
There was some preliminary geotechnical work and utility infrastructure identification work which could be re-used from the RL for the OL, but a lot of it needed to be redone as well. the OL was basically "from scratch".
The OL's cost benefits will also multiply even further as it gets extended up Don Mills, as it can be elevated at a fraction of the cost of the RL would have been tunneled. The OL can probably be built from Exhibition to Sheppard, 22km, for the same cost it would have been to build the RL from Osgoode to Eglinton, 12km.
Please stop. You are omitting all sorts of elements from the discussion to serve your purposes here, aside from which its frankly off-topic to the thread.
We don't need to re litigate the O/L here.