https://www.techradar.com/news/elon-musks-loop-is-no-hyperloop-but-its-still-bloody-fast-and-cheap

Elon Musk’s transportation system under the surface of LA finally has a name, and it’s a play on his other transportation system Hyperloop. The new (not so hyper) system is called Loop. 

Just because it won’t be travelling at mind-bending speeds doesn’t mean it won’t be quick. Musk is currently promising speeds of 150 mph, and says that rides on this futuristic looking mode of transport will cost just a single dollar.