
Is this the world's best metro? —
Hong Kong's 218-kilometer metro network serves 1.6 billion passengers per year. In comparison, the London Underground network stretches 402 kilometers and serves 1.3 billion passengers per year.

MTR's hi-tech tools —
The Super Operations Control Center -- or Super OCC (pictured) -- and an A.I. system are behind Hong Kong MTR's almost perfect on-time record. The rail network earned $1.6 billion in revenue in 2014.

Interconnected train lines —
The newly renovated Super OCC allows officials to monitor all of the train lines from a single room. "Grouping all the lines into one control room is important because it's an interlinked network," says Jacob C. Kam, operations director of MTR Corporation Limited.

Decoding the super screen —
The red bars on the yellow and white lines on the top right screen represent the current location of the trains. The screen beside it shows how many passengers have traveled on the MTR that day. Below, CCTV monitors allow controllers to keep tabs on all of the MTR stations.

Super OCC —
The control room runs 24/7. After the trains shut down, it's used to manage overnight track maintenance. It also oversees power supply and air ventilation, which are indicated on the far right end of the screen.

No incidents here —
When there's an issue with a train, the incident clock -- the black elongated box above the screens -- will be turned on, indicating the seconds a train is delayed.

Secure location —
Anyone entering the Super OCC needs to go through a series of security checks and heavy doors. "It's the central nervous system of the railway network in Hong Kong," says Kam.


