士嘉堡輕鐵
In 2005, Toronto City Council again proposed to extend the line northeastward as a replacement for the aging Scarborough RT. In 2006, this proposal was then altered when Scarborough councillors agreed to support plans to refurbish the existing line using other light-metro options for Scarborough. Using heavy-rail rapid transit like the rest of the Toronto subway in Scarborough was not yet examined.