Vertical Sound Barriers

1、Jing-Shen Hub (Beijing-Shenyang) Sound Barrier Project

2、Shang-He-Hang Railway (Shangqiu-Hefei-Hangzhou) Sound Barrier Project

3、Zheng-Kai Intercity Railway (Zhengzhou-Kaifeng) Sound Barrier Project

4、Ha-Man Railway (Harbin-Manzhouli) Sound Barrier Project

5、Lan-Xin Line 2 (Lanzhou-Xinjiang) Sound Barrier Project