This photo taken on Aug. 30, 2024 shows the construction site of the integrated transportation hub at the Beijing Sub-center Station in Tongzhou District, sub-center of Beijing, capital of China. The main structure of the integrated transportation hub at the Beijing Sub-center Station, a landmark transportation project for the coordinated development of the Beijing-Tianjin-Hebei region, was capped on Friday. The construction of the transportation hub is a key project of Beijing Sub-center, and the main structure of the building is scheduled to be completed by the end of this December. The station will be ready for operation by the end of 2025. [Photo/Xinhua] This photo taken on Aug. 30, 2024 shows the construction site of the integrated transportation hub at the Beijing Sub-center Station in Tongzhou District, sub-center of Beijing, capital of China. [Photo/Xinhua] This photo taken on Aug. 30, 2024 shows the construction site of the integrated transportation hub at the Beijing Sub-center Station in Tongzhou District, sub-center of Beijing, capital of China. [Photo/Xinhua] This photo taken on Aug. 30, 2024 shows the construction site of the integrated transportation hub at the Beijing Sub-center Station in Tongzhou District, sub-center of Beijing, capital of China. [Photo/Xinhua] This photo taken on Aug. 30, 2024 shows the construction site of the integrated transportation hub at the Beijing Sub-center Station in Tongzhou District, sub-center of Beijing, capital of China. [Photo/Xinhua] This photo taken on Aug. 30, 2024 shows the construction site of the integrated transportation hub at the Beijing Sub-center Station in Tongzhou District, sub-center of Beijing, capital of China. [Photo/Xinhua] This photo taken on Aug. 30, 2024 shows the construction site of the integrated transportation hub at the Beijing Sub-center Station in Tongzhou District, sub-center of Beijing, capital of China. [Photo/Xinhua] This photo taken on Aug. 30, 2024 shows the construction site of the integrated transportation hub at the Beijing Sub-center Station in Tongzhou District, sub-center of Beijing, capital of China. [Photo/Xinhua] This photo taken on Aug. 30, 2024 shows the construction site of the integrated transportation hub at the Beijing Sub-center Station in Tongzhou District, sub-center of Beijing, capital of China. [Photo/Xinhua] This photo taken on Aug. 30, 2024 shows the construction site of the integrated transportation hub at the Beijing Sub-center Station in Tongzhou District, sub-center of Beijing, capital of China. [Photo/Xinhua]