Metro QR code launched to track coronavirus
A QR code to track passengers on Metro trains was officially activated on Friday. It was introduced by Shanghai's transport authorities.
Similar to those already being used in taxis, passengers can scan the codes in compartments and enter their mobile phone numbers for registration.
Each compartment in the train has a different number, which means passengers should re-scan if they change compartments or lines. They are also encouraged to help register for those passengers who are without phones.
Currently, the code is available in Metro Line 1, 2, 3, 4, 5, 6, 12, 16, the Maglev train and Pujiang Line. All Metro lines will be covered with the new registration system in two days.
The information collected is intended to prevent the spread of the coronavirus.