This project was the ceiling acoustic project of a large urban rail transit hub station. As a high-flow public place, the station has dense passenger flow, frequent broadcast prompts and mechanical equipment noise. The original ordinary ceiling has poor sound absorption effect, and the noise is superimposed and echoed in the large space, making the station environment noisy and chaotic, which affects the travel experience of passengers.

Fiberglass acoustic ceiling panels were selected as the full-coverage ceiling solution for the station hall and platform. Made of inorganic high-density glass fiber, the panels have inherent Class A fire resistance, zero flame spread and low smoke toxicity, fully meeting the strict fire safety standards of rail transit public places. The interconnected porous structure has an ultra-high NRC of 0.90–0.95, which can effectively absorb the noisy crowd sound, broadcast reverberation and equipment background noise, and improve the overall acoustic environment of the station.

At the same time, the panels have excellent moisture resistance and dimensional stability, adapt to the complex environment of the underground station with high humidity, and will not sag or deform after long-term use. Compatible with the standard ceiling keel system, it can be seamlessly integrated with lighting, ventilation, fire protection and other facilities. After the project was put into use, the overall noise of the station was significantly reduced, the station environment was more orderly, and the passenger travel comfort was greatly improved.