Some yellow balloons are tied in a parking lot: what a brilliant idea!

The idea described in the video is from South Korea: Here consumption and fuel costs have reached alarming levels, which combined with overpopulation have made it impossible to find a parking space, forcing daily drivers to grueling and expensive researches. It was estimated that in the capital a driver runs on average 15 km per month just looking for a parking space. To help him, these yellow balloons have been installed in large car parks: they rise into the air when the place is free and are instead down when the place is not available. Simple but very functional ...