Originally Posted by someone123
What I could see is tunnels for key bottlenecks. For example, it would be possible to make a light rail line that goes in a median similar to what you find on Robie, then goes underground to avoid a bad intersection like what you see by Windsor/Lady Hammond/Bedford Hwy.
My concern with building an LRT in downtown would be the narrow streets. LRT may have much tighter turning than say heavy rail, but they still need a lot of room. So they wouldn't be able to get around a corner like Spring Garden and Barrington for example, unless that was entirely for transit. Plus from a dead stop getting up that hill, even if it's moderate grade might be tricky.
For me; I had envissioned that for the downtown of Halifax an LRT would probably have to be underground because of the tight corners. But, you could save money in the long run if there were two lines running through downtown - they could use a common tunnel (much like what Calgary does with the 7th Avenue corridor - just that it would be underground). I also suspect you'd probably have no choice but to tunnel to get an LRT across the harbour - but since it might be just for LRT, the cost would probably be less than say the proposed tunnel for the 3rd crossing (where vehicles would've been included).
The only thing I caution about putting LRT at grade (in medians) is that it can create quite a nightmare of traffic. 36 St NE
is unfortunately a mess, thanks in part to the LRT and during rush hour - ugh! I got stuck there for over an hour.
The other challenge I see for HRM and using medians is that there are so few streets that have them! Only portions of Robie street up to Cunard have them, Dunbrack, small part of Windsor, parts of Cogswell, Connaught, Alderney Drive. That's all I can think of - but you'd have a limited area. Quinpool is probably wide enough that you could take out the on street parking to put an LRT down it - but then there is the traffic issue, plus the businesses would scream murder for taking the parking.
Despite the cost, I suspect if you did an LRT from Mumford, you'd probably have no choice but to put it under Quinpool, SGR and through the DT, but then you might be able to run it surface or elevated elsewhere.