Photo taken on Sept 28, 2021 shows the Panyu Square station of the Guangzhou Metro Line 18, which officially started operation on that day. [Photo/IC]

As the photo puts it, the Guangzhou Metro Line 18, however, is brand-new and has adopted many new technologies.

Its subway trains, at a maximum speed of 160 kilometers per hour, are the fastest subway trains in the Guangdong-Hong Kong-Macao Greater Bay Area.

Totaling 58.3 kilometers, the system started operation on September 28 and now has nine stations. At the Panyu Square Station, which is the largest, commuters can read books in between the trains.