MTR

Mass Transit Railway. Some facts courtesy of gov.hk:

• At present, the MTR system consists nine lines
• There are 84 stations along over 170 kilometers.
• Standard class adult single journey fare ranges from HKD $3.5 to $51.
• The nine lines carry an average of about 3.7 million passengers per weekday.

If you catch yourself traveling on the MTR between 8-9 am or 6-7 pm, you can expect a pretty solid reenactment of the phrase 'sardindes in a can'. People with claustrophobia, beware!