Because it has the 8-lane 407 just to the north, and the 8-lane 403 to the south ...and the 6-lane QEW. There is no alternative to the 401 east of Brock Road.... the 401 is well over 6 lanes through the eastern GTA why is only 6 lanes in the far more heavily populated western side???
That's the stated plan isn't it? 12 lanes at Mississauga Road. 10 lanes at Winston Churchill, etc.I would like to see the 401 widened through Mississauga, but I think this should be a gradual tapering off of lanes as it transitioned from a 12-lane urban superexpressway to a 6-lane rural intercity freeway.
There's been a few iterations. 407 from the east to Winston Churchill was always 407. At one point from there to QEW was to be 407 (including the bottom leg of the 403) and the 407 from 9th Line to Burlington was 403; that was nice and simple. But much earlier, 403 was to go from west to 427/401 interchange, with 410 going from Brampton, to 403 and down Cawthra ... but that died in the 1970s, or earlier, so we still have this 403/410 thing ... amazing that the same highway can have 3 different numbers.The 407 was originally planned to be 403 but was changed to 407 so that the MTO would'nt have to built and it could be tolled as a consistantly numbered route. The 403 through Missy was supposed to be renumbered to 410 but was rejected as being potentially confusing, although in my opinion it would have made a lot more sense.