Map of proposed tunnel system under Los Angeles

https://www.theverge.com/2017/12/5/16737488/boring-company-los-angeles-map-tunnels
They’re not just empty tunnels; instead, a car on the surface would dodge traffic by taking a sort of elevator down, which would then move as a “sled” through the tunnels at speeds of 150 miles per hour. Bus-like “pods” would move non-car owners around the city, too.