China is home to the world’s longest metro systems: Beijing and Shanghai. Beijing’s subway opened in 1971 and is the oldest metro system in China. It carries about 10 million passengers every day.

There’s little doubt that China is a world leader in urban rail construction and development. Although megacities like Beijing and Shanghai — which together boast 47 operational metro lines serving ...

BEIJING: China has unveiled the world's first commercially operational metro train built with carbon fiber materials, marking a significant leap in eco-friendly urban transportation technology.