Cobra
Senior Member
Elevation is not possible in the Danforth-McCowan corridor. Cut and cover could cost as little as $175-$200 million per kilometre though and ought to be seriously considered.
Cut and cover is the only way I can think off and wouldn't be surprised they are forced to go there.
Going back to my example, let's say you want to expand your house and someone else was going to pay for it, you'd most likely pick the less intrusive construction technique and best materials increasing the cost. But if you have to put your own money into it, you'd get much more reasonable regarding stuff like that and would look at bring the costs down to get the same result.
Perhaps it's healthy that the city is now forced to pay for subway expansion if it forces them to actively seek to build subway at a cheaper cost