A construction worker wraps up finishing tasks in the waiting hall of Chongqing East Railway Station in Chongqing on Thursday. The largest high-speed rail hub in the western part of the country, with 15 platforms and 29 tracks, was completed on Wednesday. Set to open by the end of June, it will join three other major stations in the city, enhancing connectivity within the Chengdu-Chongqing economic circle and the Yangtze River Economic Belt.