High Quality Content by WIKIPEDIA articles! The Mississauga Transitway is a bus-only roadway under construction in Mississauga, Ontario, Canada, spanning most of the city from Winston Churchill Boulevard to the junction of Highways 401 and 427 in the city of Toronto. Proposed in the 1970s, the plan has evolved over time. In the 1990s, a serious proposal intended to build a transitway from Ridgeway Road at the very western edge of the city, to the westernmost station of Toronto`s proposed Eglinton West subway. After this line was cancelled, the proposal was revised to its current state. Construction started in November 2010 with completion scheduled for late fall 2012.