According to a German newspaper the sign hopes to stimulate local youth to behave a bit more quiet while sitting and drinking on the square surrounded by family houses. The ‘Säule der Toleranz’ is switched off most of the day. At 8 PM it turns totally green, which means activity such as drinking and making music is allowed. Slowly it changes color. At 11 PM the whole pillar is colored red, which means that any loud activity is forbidden. As far as my one night observation goes, the pillar doesn’t work for this last bit. It’s used as an argument to use Augustinerplatz as an open air pub, with a great atmosphere stressed by cosy red light. Which makes it a great place.