I've never quite understood the 'tear down the Gardiner' argument. Not only do tens of thousands of commuters rely on it as a part of their daily commute but it also provides an easily accessible route for trucks delivering items to downtown businesses overnight. There isn't the money to tear it down and even if we did, theres even less money to rebuild something which would provide the level of access that it does. If the Gardiner was an at-grade highway the problems of 'cutting off' the area south of it would be greatly magnified. Furthermore, those who desire a subterranean route can again be directed to the costs involved as proof of this plan's current impossibility.
I believe that the elevated Gardiner is a fine and modern solution to the problem of a downtown expressway. The
real problem is how Toronto lets it decay to the point where its simply an eyesore. To (partially) alleviate its aesthetic and acoustic shortcomings, I propose both a cleanup (this could be put on developers in exchange for height?) and the installation of clear sound barriers like
every other modern elevated expressway in the world. I really think this could help or hinder the eventual Cityplace Park, making it a cultural center with concerts etc. or a desolate, unused wasteland. These barriers do more than you think. Heck, these ones even seem to contain some sort of solar-power element.
Not only do many other metropolitan centers have similar highways cutting through them, places such as Bangkok also have elevated rail. Hell, Tokyo, London, New York, Munich and countless others even have
high speed rail going through them.
In short, the problem is not the edifice itself, its how we treat it.