When it comes to congestion, JR Shinjuku Station is king. This station is the Yamanote Line's undisputed champion of traffic, rowdy customers and sheer bedlam and confusion.
Shinjuku Station is the western floodgate to Tokyo. It is the duct that ushers in the crowds, controlling the ebb and flow of people into the metropolis. Some 2.7 million people use the station daily, embarking, disembarking or merely passing through.
But Shinjuku hasn't always been a major hub.