Warning with a sign projected onto the water curtain against a track of height restriction

On a road in Sydney, Australia, a truck that had been warned of the height restriction of the tunnel ignored the warning, going straight, destroying the tunnel and accident causing injury often occurred, so as a shower as a means to solve it A system for projecting signs on the falling water was introduced. As the image emerges, the eyes of the driver seems as if the entrance to the tunnel was shut down suddenly, it is a fairly strange sign.

A tight fit - YouTube


One truck that runs on Sydney's road.


There is a tunnel ahead, there is a tunnel saying "STOP" in the direction of travel because the height of the truck exceeds the limit, but ignoring the driver and proceeding as it is.


The warning display looks something like this with such a feeling, but it does not stop still.


When approaching the tunnel, the sensor sensed the height of the track again.


At the entrance of the tunnel the "STOP" light flashed, but the truck driver does not go through.


Then a sign called "STOP" appeared in front of me, surprising driver suddenly braked.


I will look at how it actually is from the first person viewpoint. Although the "STOP" light flashes at the top of the entrance of the tunnel, there is no change in the tunnel itself.


However, as the car approached the tunnel, signs appeared as if the entrance was blocked.


This is a mechanism that lowers water like a shower from above the tunnel and projects images of signs there.


Since the water is only in a curtain shape, the entrance to the tunnel is not blocked but it is possible to go through.


Trucks whose size is higher than the upper limit of the tunnel will cause accidents at the tunnel, causing not only traffic, but also death.


Below is a picture of the moment when a track caught in the height limit actually tried to enter the tunnel ignoring the warning.


The container that collided with the tunnel was destroyed and tilted.


There is also a catastrophe inside the tunnel.


Although one truck is running behind the tunnel ... ...


Container falls from the truck.


Furthermore the ceiling broke and fell down. A car running behind the truck may be damaged and it is very dangerous.


Experts say, "This system will be a major investment in transportation, but what do you think if you consider the cost of actually repairing a broken tunnel?"