Did you ever play cities: skylines? Keeping traffic manageable was a big part of the gameplay. Without good transit the roads would all gridlock regardless of how many lanes you add to the highways.
Played it a ton! But they stuck with euclidean zoning from SimCity and most car trips in CS don't need parking - they just disappear if there's not enough surface parking for them. They also poof away when stuck in traffic too long (unless modded).
