Tokyo, busiest most successful metro

Tokyo, one of the most densely populated cities in the world, has one of the busiest and most successful metro systems. "Due to their long-term interest in the communities they built along their rail lines, the private railways [provide] valuable social benefits through public transportation while still pursuing profits. High quality, frequent rail service to dense, mixed-use, safe, pedestrian-friendly developments has allowed Tokyo to achieve enviable rates of public transit usage and given Tokyoites the freedom to view automobile ownership as a lifestyle choice rather than a necessity." Today, over 5.95 million passengers utilize the Tokyo metro system daily.