Transverse Tunnel Ventilation System is designed to provide uniform air distribution throughout the tunnel by supplying fresh air and extracting polluted air through dedicated duct networks. In this system, fresh air is distributed across the tunnel through supply ducts, while contaminated air, vehicle emissions, heat, and smoke are collected and removed through separate exhaust ducts. Axial Flow Fans are commonly used for handling large air volumes, while Centrifugal Fans may be selected where higher static pressure is required. The system helps maintain air quality, control temperature, remove harmful gases, and support smoke management during emergency conditions. It is widely used in road tunnels, metro infrastructure, underground passages, and other enclosed transportation facilities.
