- i actually like doug ford's tunnel idea in principle, but i want to see a serious feasibility study. the basic observation, that the 401 is brutally congested, is correct. you don't want to see more giant highways built further north. a better idea may be to try to reduce the amount of traffic moving by truck and increase the amount moving by electrified rail, and if they do end up digging, they might want to consider expanding the subway network under the 401 and pairing it with freight traffic moving parcels.