This is considered a significant advancement in environmentally friendly urban transportation technology.
On June 26, China announced the launch of the world’s first commercial subway line made from carbon fiber materials. This event marks a significant advancement in environmentally friendly urban transportation technology.
Developed by CRRC Qingdao Sifang and the Qingdao Metro, the CETROVO 1.0 train is claimed to reduce weight and energy consumption, paving the way for a greener future for subways.
Mr. Liu Jinzhu, a senior design engineer at CRRC Qingdao Sifang, stated: “By utilizing the ‘king’ of new materials, the train has reduced its weight by 11% compared to traditional metal vehicles.” This means a lighter body, a 7% reduction in energy consumption, resulting in an annual carbon emission reduction of 130 tons. This figure is equivalent to planting approximately 6.7 hectares of forest.
Residents of Qingdao, Shandong Province, China, experience the carbon fiber subway. (Photo: ChinaDaily)
In addition, the CETROVO 1.0 incorporates advanced digital technology through an intelligent operating platform called SmartCare. The train is fully automated and does not require a driver. This system allows the train to self-diagnose and detect potential issues, ensuring safe and efficient operation while minimizing maintenance costs (expected to decrease by 22% over the train’s lifecycle).
Despite its lighter frame, the carbon fiber structure does not compromise the train’s durability. Mr. Liu added that the train has a higher impact resistance compared to traditional metals. This improvement helps extend the train’s lifespan. The reduced weight also means less wear on wheels and tracks, further minimizing maintenance needs.
Mr. Lyu Xiaojun, another senior design engineer at CRRC Qingdao Sifang, highlighted the importance of reducing energy consumption and carbon emissions in China’s urban rail sector: “Lightweight vehicles are a key technology for developing environmentally friendly and low-carbon rail vehicles.” Mr. Lyu emphasized that carbon fiber is an ideal material due to its lightweight, high strength, and resistance to impact and corrosion.
The train is equipped with a maximum speed of 87 mph (140 km/h). (Photo: Xinhua.net).
“The introduction of the new train marks a significant shift from metal materials to carbon fiber composite materials, breaking the limitations of traditional structures and elevating China’s subway technology to a new level.” Mr. Lyu remarked: “This innovation is crucial in promoting the green transition of urban rail transport and achieving the dual carbon goals of the industry.”
Not stopping there, the train is equipped with a maximum speed of 87 mph (140 km/h), surpassing the current average speed of 49.7 mph (80 km/h) for Chinese subways.
China’s Leadership in Rail Innovation
According to a report by SCMP, established in 1900, CRRC Qingdao Sifang has emerged as one of China’s oldest and most esteemed locomotive manufacturers.
As a subsidiary of the world’s largest locomotive manufacturer, China Railway Construction Corporation, Qingdao Sifang has continuously pushed the boundaries of rail technology.
The company’s global footprint significantly expanded in 2014 with its first contract in the United States to supply subway trains to Boston, showcasing China’s growing influence in the international rail market.
