Here is what we have determined to be a reasonable costing estimate for the lines we are proposing. It is divided into two parts: total for all projects, and total for the priority projects. The goal is to have the priority projects come in under $15 billion, to stay on par with TC.
Let the debating and pointing out errors begin, haha. I'm not an expert when it comes to costing, so if you see anything that looks out of place, please let me know.
A few points:
1) Sheppard LRT, Agincourt to Meadowvale. The cost of 100 M/km is probably overstated. It is in-median and the street is wide, can't see why it should be more expensive than regular 70 M/km.
The Transit City's SELRT is costed at 1,189 million; if the cost of Agincourt - Meadowvale segment was 930 million, then the cost of Don Mills - Agincourt segment would be only 259 million - which is unlikely since it includes 1 km of tunnel and a large underground station. If Don Mills - Agincourt costs more, then Agincourt - Meadowvale should cost less.
2) Sheppard LRT, 1.9 km Malvern Centre spur. That one would probably costs more than 70 M/km, since sound-protection has to be insured.
3) It is a little odd to extend the BD subway to STC, but not provide a direct link from there to Malvern Centre. IMO, there should be either LRT from STC via Centennial to Malvern, or BRT on the same route.
4) DRL East (Danforth to Spadina) may be more than 320 M/km, because of the very complex downtown section (existing subways, utilities, PATH etc).
5) It is a little odd to end Don Mills LRT at Finch rather than at Steeles.
6) Kipling BRT from Kipling Stn to Eglinton is in Priority list, the rest of Kipling is not. I can guess the reason - connection to Mississauga BRT - but suggest to mention that in the Remarks.
7) "Kipling" section, BRT on Lakeshore from Kipling to Long Branch in-median, "Shares dedicated lanes with streetcar": This is impossible (at least for 10 M/km) since dedicated lanes for streetcars do not exist there. Streetcars run in mixed traffic in that section. I'd consider removing that 2.4 km BRT section from the plan.
Instead, you could add a short (about 1.5 km) LRT tunnel from Roncesvalles to a DRL West station (probably at Queen and Dufferin). Effectively, this transforms the whole streetcar line to Long Branch to LRT. The Queensway section runs in a ROW, the Lakeshore section runs in mixed traffic but there is little congestion.
Assuming 1.5 km for 250 M/km, it would be +375 million to the whole plan; but this will add to the non-priority section.