Comment by elihu

Cars and mass transit both have major problems. Cars aren't scalable, and mass transit is often slow when you have to wait for trains/buses to come. (It's worse when you have to change buses or trains.)

The video looks more like a high-speed form of personal rapid transit [1], which is a sort of hybrid system that tries to achieve the best of both. It's like a bus or train system, except the vehicles are smaller and don't operate on a timetable. Instead, they pick you up when and where you want and they take you where you want to go.

[1] https://en.wikipedia.org/wiki/Personal_rapid_transit