调查表明,很多城市道路重复建设地下管道,给市民造成诸多不便,已成为当今世界城市管理的“最大难题”之一。然而在德国,人们无论走到哪条大街小巷,都不会遇到脚踩“拉链路”,头顶“蜘蛛网”的情况。有专家指出,德国城市的洁净美与其严管地下管道建设有关。·共用管廊阻止“开膛 The survey shows that many urban roads repeatedly construct underground pipelines and cause many inconveniences to the public. It has become one of the “most difficult problems” in urban management in the world today. However, in Germany, no matter where the streets and alleys go, people will not encounter the foot “zipper” head “spider web” situation. Some experts pointed out that the clean beauty of German cities is closely related to the construction of underground pipelines. · Shared pipe to prevent "breech