Guangzhou Metro Group and CRRC Zhuzhou Locomotive Co Ltd jointly unveil their latest green intelligent urban rail vehicles in Guangzhou, capital of Guangdong province, on Monday. [Photo provided to chinadaily.com.cn]

"As a new generation of low-carbon and environmentally friendly urban rail vehicles, the green intelligent urban rail trains play a crucial role in enhancing the innovation capabilities of autonomous products in urban rail transit, helping accelerate the industrial scale-up and standardization of urban rail transit equipment," said Gao.

The trains are equipped with an electromechanical braking system, which can improve the response efficiency by approximately 30 percent compared to traditional air brakes.