Traffic conditions in road tunnels mean it is crucial to continuously monitor the oxygen supply, visibility, and the concentration of pollutants in the tunnel. Ventilation systems work closely with traffic control systems to maintain the air quality in regular operation. It is particularly important to ensure that ventilation remains available in the event of a fire, so that rescue operations can be conducted.
To ensure that rescue operations can be carried out in the event of a tunnel fire, smoke and heat must be kept away from rescue workers and other road users remaining in the tunnel. A suitable ventilation control system is used to control smoke and heat in the tunnel tube. The ventilation runs in extraction or injection mode, depending on the specific fire scenario. The way in which ventilation is controlled in the event of a fire depends largely on whether the source of the fire can be located in the tunnel tube. An overpressure is generated to prevent smoke from entering the evacuation shaft.
With Phoenix Contact, you can quickly and easily connect your sensors in road and railway tunnels. Benefit from efficient engineering with prepared function blocks in our software libraries.
Use the subfunctions, e.g. for monitoring NOx, CO, and CO₂ concentrations, to ensure more efficient project sequences.
Ventilation systems are one of the biggest consumers of power in tunnels for motor vehicles. It is therefore important that fan drives start up and operate in an energy-efficient manner. Integrating the drives into the tunnel control system allows any anomalies to be detected at an early stage.
Benefit from increased efficiency with continuous monitoring and status-based maintenance.
Ventilation devices are a key element of tunnel safety. Fresh air is brought in to ensure compliance with predefined levels of carbon monoxide and diesel emissions not only in the event of a fire, but also when the volume of traffic is particularly high. The controller has a redundant configuration to prevent the ventilation system from failing.
Phoenix Contact provides appropriate solutions for ensuring the availability and the redundant design of ventilation systems.
Secure network and control infrastructures with high-level availability ensure you can lay the foundation for reliable tunnel operation. We support you with high-performance products for fiber optics, copper, and wireless.
Our solutions for redundant network structures meet all the necessary safety and bandwidth requirements for secure and error-free access from the traffic control room. The respective redundancy levels ensure seamless data transmission for all tunnel applications. So, even in the event of partial failures, for example because of defective devices or connections, relevant protocols can be forwarded in real time. Our IEC 62443-certified consulting services and the use of modern encryption standards safeguard your data.
Learn in our white paper how to assure maximum security during remote access to your systems and protect yourself against cyberattacks and malware.
Feel free to contact us. We will consult with you to find the ideal solution together.
