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The Australians created a Stop sign that is shown through the water


This is actually pretty cool. According to an Australian TV channel, there is, per month, 3 or 4 incidents with trucks trying to enter tunnels which are too high to them, causing several serious accidents. To avoid that, those responsible for the tunnels of Sydney, created a system in which an image of a stop sign is reflected in a water curtain when drivers ignore all other warnings. See it below.

Source: Ten News