India Brings Tunnel Hood Technology to Bullet Train Project for the First Time
Tunnel hood technology is a specialised engineering solution used in high-speed rail systems across the world. When a bullet train enters a tunnel at speeds above 300 kmph, it pushes a large volume of air ahead of it. This sudden movement compresses the air inside the tunnel and creates pressure waves. As these waves travel through the tunnel and emerge at the other end, they can produce a loud booming sound known as tunnel boom.