On the morning of June 20, the inter-district tunnel between the forest park station and longdongpu station of guiyang rail transit line 2, which was built by Shanghai baoye group co., LTD, was completed. At this point, all underground excavation sections between stations of the second phase of line 2 were fully connected.

Recently, the shield tunneling between the rookie park station and guangxi university station of the first phase of nanning rail transit line 5 project started smoothly, and the shield tunneling construction began.

At 8:58 am on June 12, the shield machine "city rail youth" on the right line of beijiao new town station from midea avenue station of guangzhou metro line 7 section 04 to beijiao new town station started off smoothly at midea avenue station, and the roar of the shield machine set off the climax of the shield construction of this project.

Beijing rail transit construction and management co LTD said on May 24 that the first phase of the new airport line has been completed, and it is expected to begin commissioning work on all high-speed trains in mid-june.

On the morning of May 10th, the main structure of xi 'an metro line 6 was successfully capped as the last roof was poured at the sixth road station of the first phase of xi 'an metro line 6.