I drove today through Brampton to Jane/400 area (Wonderland).
I took Bovaird, Castlemore and Rutherford.

Since it was Saturday, it was relatively easy going, but tons of traffic lights on the way. It took about 30 minutes today from about Hwy10/Bovaird, but would imagine more during rush hour.

It is however a wide 3 lane road for most part, only narrows to one lane in one spot, speed limit 70/60, and 50 around the construction on Castlemore, and in the valley where Rutherford crosses Hwy 27