The GTA-West transportation corridor is identified in the 2006 Growth Plan for the Greater Golden Horseshoe as a new planned corridor between Northern Vaughan and Guelph. The Environmental Assessment Study was initiated in 2007.
In April, 2009, Transport Action Ontario (known at the time as Transport 2000 Ontario), and SHIFT, an alliance of organizations working to redirect funds towards from sustainable transportation infrastructure, submitted comments to the project team.
The comments can be viewed here: GTA-West-2009-04-13