Northern Light
Superstar
What this basically means is that without the corridor the new development in Caledon and Brampton would see severe local road network congestion as people drive all the way through Brampton and Vaughan in order to access the freeway network, and they will be the biggest benefactors of the highway, but it will also reduce congestion on the existing freeway network and provide more alternate routes, which will help existing commuters.
Which could be resolved by not permitting said development.
Much cheaper!