Beijing is well-prepared for the arrival of the Winter Olympics. The Winter Olympics branch line of Beijing Subway (the western section of Line 11) was successfully put into use, which will greatly improve the operational capabilities during the Winter Olympics. The Winter Olympics branch line of Beijing Subway is located in Shijingshan District, Beijing, with total 4 stations: Jin'anqiao Station, Beixin'an Station and Xinshougang Station. After the opening of this new line, all competition venues in the Beijing Zone of the Winter Olympics will be accessible by subway, and it will become an important part of the green and low-carbon transportation system for the Winter Olympics.

On December 31, the No. 11 branch line of the Winter Olympics was officially opened. Both the interior and exterior of the carriage were made of blue and white. The lighting on the roof of the carriage was designed in the shape of snowflakes blooming, and the handrail at the door was designed in the shape of a hockey stick. The doors of each train are decorated with the Winter Olympics mascot "BingDwenDwen" and the Winter Paralympic mascot "XueRongRong"; the animation of XueRongRong's "performance" is played on the display screen inside the train in the promotional video. Ice and snow elements can be seen everywhere on the train, bringing the atmosphere of the Winter Olympics into the subway.

The Winter Olympics branch line is mainly based on the consideration of the Winter Olympics and was established to serve the Winter Olympics, in addition to providing convenience for the travel of residents in west part of Beijing. It is particularly worth mentioning that the Winter Olympics branch line is the first smart rail transit demonstration line in Beijing, with infrastructure such as smart scheduling, smart operation and maintenance, smart vehicles, and cloud platforms. The subway is also equipped with a visual assistance system for passengers. Passengers no longer need to go to the service desk, but have audio-visual consultation and dialogue with station staff nearby in order to solve problems quickly. At present, the well-received 5G signal has also fully covered the entire line, and the "dialogue" between vehicles and vehicles has been realized, thereby further improving the operation efficiency of the line.