Pointing and calling
You may notice that train conductors and platform attendants seem to use an excessive amount of gestures and verbal calls every time a train is approaching or leaving. No, these aren’t aspiring performance artists dressed up as train personnel; they’re actually employing a mandatory practice called ‘point and call’.
Studies have shown an 85 percent reduction in human error can be achieved by pointing to an object and then verbalising your actions, since more of the brain is being employed, thereby increasing your situational awareness. Due to this increased accuracy and decreased likelihood of human error, this method for issuing instructions is mandatory throughout the rail industry in Japan.