The McMahon plan looks pretty good.
It's outlined clearer than I have seen in a plan about the trade-offs of car and commuters v. city, residents and development.
Crowchild future state widens right-of-way from 40m to 80-150m and takes 10 acres of the 88 acre stadium site (about 11%). Putting aside that it's less appealing to live/visit/be next to a 150m wide vs. a 40m freeway from things like sound, pollution and traffic, there's some pretty clear trade-offs. For example, the future pedestrian bridge to the LRT is now required to be 75% longer and more costly. The widening is only needed to accommodate drivers from new housing 15 kilometres further away at the end of Crowchild. In about as clearly as we have ever done, we are reducing the developable area of this McMahon site by 10 acres to allow development elsewhere in far less sustainable locations.
I doubt many are against a few tweaks and adjustments to Crowchild to make it smoother and more consistent lanes through the area. But the ultimate corridor plan is antithetical to what this TOD is trying to achieve or developing a sustainable major city in general. If I can add a metaphor, this TOD plan looks about as tasty of a meal I have seen, however the cooks clearly were forced to use all the ingredients, including including a major 10-acre dose of poison. Might still be good but wow - it would have been so much easier to have made a meal without it.
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Overall this is a great plan though. The connections into University to the north, the addition of housing and a interior road network to break the whole mega-block up a bit is a nice touch. Would be great to see this happen one day.