I've been saying this forever. We don't need new tech to be developed or rolled out, we don't need to move everyone to a city and take a train, we don't need everyone to buy a new electric car, we just need to take away the reason 1/3 or more of driving occurs. And we already proved we can do it. It's insane to not make that part of the climate goals.

This compounds too - less traffic means less need to add more lanes, or run more trains, or pave more parking lots, etc... So basically "bad, unnecessary" construction can go away. From what I can tell, almost no one actually wants a larger highway except because of traffic. But most of the traffic is commuters. We might have enough capacity (if you remove most commuters) for a very very long time to handle tourists, delivery trucks, and emergency services...