Japan by far had the most confusing and hardest to use metro of any major city I've been to. Stations with the same name that could only connect by exciting and

Japan by far had the most confusing and hardest to use metro of any major city I've been to. Stations with the same name that could only connect by exciting and reentering. Platforms with the same number at the exact same station. It's amazing what happens when multiple companies all own different parts of the network, but success would definitely need a better defined metric here.