ALL THE subway stations in Beijing are to be equipped with devices on their entry gates that can scan a QR code on passengers' phones, which is expected to speed up passenger flows. Economic Daily commented:

It is reported that about 45 percent of the gate machines in the capital's subway stations have the devices installed, and it is expected that all the capital's subway stations will have them soon.

The Beijing subway's average daily passenger volume exceeds 10 million, and about 700,000 people line up to purchase a subway ticket at subway stations every day, which can cause congestion in the concourses at peak times.

The online single ticket purchasing app launched in August last year enables passengers to purchase tickets in advance instead of lining up to buy them. Nowadays the registered number of users of the app Ruubypay is about 1.8 million, and about 80,000 single tickets are purchased each day.

Purchasing tickets online and presenting a QR code to pass through a subway gate machine is very convenient and time-saving for passengers, and will largely increase the efficiency of taking subway, which is conducive to not only passengers' subway commute, but also the entire urban public transportation system.