Tunnel Water Curtain. / VR, facility design

When a fire breaks out, it takes a long time until the initial suppression occurs when the vehicle stagnates, so smoke and smoke tend to spread to other places. I want to devise a way that fire and smoke do not spread to other places. There is a beam projector at the end of the rail, which can cause images or images to form on curtains made of water to warn nearby drivers when a fire has occurred.