Toei[0] has been experimenting with it; the Nippori-Toneri line from Nippori is a driverless monorail. The trip is fairly normal albeit jerky. Awkwardly enough

Toei[0] has been experimenting with it; the Nippori-Toneri line from Nippori is a driverless monorail. The trip is fairly normal albeit jerky. Awkwardly enough, many of the stations do not have attendants either, so if you have a problem with the gate, you have to call back to Nippori and ask for help, which is a huge problem when you can't hear well enough... [0] Toei (都営) is the Tokyo Metropolitan Government-operated rail system (mostly subways and buses), not to be confused with Tokyo Metro, which is a private rail system (mostly subways), or JR, which operates mostly above-ground trains.