The five major safety systems of the No. 3 Project Department's Nanyun Expressway tunnel have been completed and put into use.

4 On the 25th of the month, the five major safety systems for the entry tunnel of the Wuliang Mountain extra-long tunnel on the Nanjian to Yunxian Expressway, constructed by the Third Engineering Project Department, were successfully completed and put into use.

▲ Five Major Safety Systems Platform

The operation of the five major systems is an important measure to build a "digital construction investment," a key to promoting the integrated, intelligent, and digital management of the NanYun Expressway, and the foundation for comprehensively improving the project's refined management level. It provides effective safeguards for tunnel construction safety and emergency response, and further improves production and construction efficiency.

It is understood that the five major tunnel safety systems mainly include: tunnel personnel access control system, tunnel personnel positioning system, tunnel video surveillance system, tunnel gas detection system, and tunnel emergency broadcast system. The five systems together constitute the core technology of tunnel safety management, capable of reflecting the real-time conditions of tunnel construction to ensure safety during the construction process. [Third Engineering Project Department/Yang Xiaobin]