What is the significance of the traffic lights on the streets of Berlin?

"little green men" means that you can move forward, while "Little Red Man" with open arms and natural posture implies that you need to wait patiently. Don't underestimate this pair of traffic lights, they have a long history of 52 years! Moreover, it belongs to those lucky people who "survived", and it is likely to replace Berlin Bear as the spokesperson of Berlin's city image and culture. The little green men was designed by Karl Pegelau, a researcher of traffic psychology in East Germany, and submitted to the East Berlin Traffic Commission at 196 1. He found that pedestrians' low sensitivity to ordinary traffic lights directly led to an increase in the probability of traffic accidents. Then came the idea of creating "little green men". 1969, traffic lights with hats first appeared at the intersection of Bodhi Street and Friedrich Street in Berlin. Bodhi Street in Berlin is as prosperous as Chang 'an Street in Beijing. Since then, traffic lights have become a different kind of scenery in East Germany. In the 1990s, Germany and Germany were unified, and many products made in East Germany were eliminated one after another. The German government plans to unify the use of standard traffic lights, and traffic light villains are also facing the fate of being banned. Fortunately, under the appeal of non-governmental organizations such as "Save the Traffic Lights" and the media, Berlin and other East German cities were able to keep the pair of "traffic lights" in East Germany. In 2009, they were finally formally incorporated into the German transportation system. At this point, the story of the villain of the traffic light only stays at the level of the signal light. It was the West Germans who made this East German product a well-known cultural symbol. 1995, Marcus Heckhausen came to Berlin. He was both a businessman and a designer. He smelled the business opportunities hidden in the traffic lights. Heckhausen uses the image of traffic lights to design creative lighting. After his great success, he published a book "The Manual of Traffic Lights" in 1997, telling the extraordinary past of the inventor Pegelau and many contemporary witnesses about traffic lights. Nowadays, the traffic light villain has successfully transformed into a special cultural symbol that not only contains the nostalgia of East Germany, but also embodies the characteristics of modern creation. The derivative products of traffic light villain involve T-shirts, water cups, bottle openers, refrigerator magnets, key chains and so on. They are very popular tourist souvenirs in Berlin. Visitors can not only feel the "approachability" of the traffic light villain in the street, but also stop at the traffic light villain shop in Bodhi Street or meet him unexpectedly at a scenic spot in Berlin.