innsertnamehere
Superstar
I drive through it all the time as well and can assure you it is not nearly as congested as the 404/401 - not to say it’s not congested.. just not the comical levels of congestion the 404 sees.As someone who lives not even 5 minutes from that interchange, I can tell you that during the PM peak it's a huge choke point. There are effectively only 2 through lanes on the 403 from the split westward. The leftmost lane comes right off the 407, and it's pretty much empty. The traffic from Brant St and the Toronto-bound QEW have their own lane, but that ends a few hundred metres west of the 407.
The third through lane MTO is planning through the interchange should correct most of the issues, it would be over a 50% increase in capacity over today, as they will be correcting a bunch of other smaller issues like merging traffic from the Brant St interchange, reduced weaving approaching the split, etc.