Alright, hate to derail all the bot love but here's a couple of rough pics of what I had in mind.
View attachment 599820
East portion is the purple brt upgraded to lrt with possible extension further east. It would interline with GL for Inglewood and 4st se stations.
View attachment 599821
This would be the tunneled portion in city center, using the util cleared 11av row then going south on 4st sw to 17av and exiting at crowchild. A little under 5km long and being further from the river, so should be doable as c&c.
View attachment 599823
Once its out in crowchild, the line goes elevated down the median, then veers off into MRU territory and on to grey eagle.
I realize this probably belongs in fantasyland given how GL has gone and how long it's likely to take to complete, but I think this would be a decent candidate for line 4 in Calgary, linking up a lot developing and higher density areas.
Roast my idea as you see fit