Highway spending increased by 90% in 2021. This is one of many reasons why car traffic is growing faster than population growth.
Why do something that complicated when bus and tram lines are way more efficient? Cities need to take the money they apend on subsidizing car ownership and invest it into mass transit.
Because trams and busses can’t fulfill every need. Certain point to point transportation options still need to exist, we just need to make them as efficient as possible.
And as I mentioned in another comment, turns out busses aren’t really as efficient as I thought they were. Fully packed small cars are way more efficient.
Edit: Changed my mind. See previous comment.
Most cars only ever have 1 person in them, 2 occasionally, and rarely ever more than that inlesst it’s a damily trip somewhere. A bus with 5 passengers is taking up less space than 5 cars of any size. Even in mass transit Meccas like The Netherlands obviously still have private cars that people use. But designing transport infrastructure around more efficient methods allows for use cases where a personal car iis necessary fleeting. Obviously moving trucks and delivery vans can’t be replaced by a tram. But a well designed city wouldn’t require me to drive my car just to pick up eggs and a loaf of bread, or to get a beer at a local bar, or go to a baseball game.