Not really an engineering problem. The real question, is weather you want to build the proper and safest infrastructure for the local residents or if you want to satisfy the vocal special interest groups from outside the area who'll rarely visit (ie the "CityBuilders" mainly after Minimum-Grid).
You devalue your multitude of posts with this statement.
I live right on Yonge between Sheppard and Finch and I support Filion's plan.
I'm not a special interest group. I'm a resident of this area who wants change.