Eli5 How are carpool lanes supposed to help traffic? It seems like having another lane open to everyone would make things better?

Question

I live in Los Angeles, and we have some of the worst traffic in the country. I’ve seen that one reason for carpool lanes is to help traffic congestion, but I don’t understand since it seems traffic could be a lot better if we could all use every lane.

Why do we still use carpool lanes? Wouldn’t it drastically help our traffic to open all lanes?

In: 406

Answer 1

If you take the cars with the highest density of people and let them move the fastest, it increases the throughput of the system.

The goal is to move people, not cars.