Highway tunnel monitoring & controlling system is the key to guarantee safety and efficiency of running vehicles in tunnel.

Because of the particularity of the tunnel traffic circumstance, Highway Tunnel Surveillance and Control System (HTSCS) need to be built to ensure tunnels smooth traffic and safe run.

The analysis of the results in Qingkeng tunnel controlling;

Taking tunnel as the object,DeviceNet field bus of Omron s C series was introduced and the tunnel monitoring system controlled by the communication network consisting of master and slave DeviceNet units,was presented.

The management level, operational environment and service standard are largely depended on the safety and reliability of tunnel monitoring system, reaction time of the system to emergencies (tunnel fire, passenger suffocation caused by high CO level, vehicle rear collision caused by poor visibility, traffic jam, etc.

Research on effect of environment in highway tunnel on emission of diesel engine;

Similarity study on model experiment for natural ventilation in highway tunnels;

Application of Ground Penetrating Radar in test of highway tunnel quality during construction;

Research on fire pressure in fire district in road tunnel fire;

Discussion on calculation of loose load on extra-large cross-section and large-span road tunnel;

Heishiling road tunnel supervision and measurement and the stability analysis;