The reporter learned from the Beijing Municipal Transportation Commission and the Municipal Major Projects Office that starting with the first bus on December 27, 2025, three new urban rail transit lines, including the middle section of Metro Line 17, Line 18, and the South Extension of Line 6, will be put into trial operation, with an additional operating mileage of about 30 kilometers. At that time, the total operating mileage of Beijing's urban rail transit will reach 909 kilometers, marking a new level of scale, service capacity, and integrated transportation carrying capacity of the capital's rail transit network.

The reporter learned from the Beijing Municipal Transportation Commission and the Municipal Major Projects Office that starting with the first bus on December 27, 2025, three new urban rail transit lines, including the middle section of Metro Line 17, Line 18, and the South Extension of Line 6, will be put into trial operation, with an additional operating mileage of about 30 kilometers. At that time, the total operating mileage of Beijing's urban rail transit will reach 909 kilometers, marking a new level of scale, service capacity, and integrated transportation carrying capacity of the capital's rail transit network.