Outdoor advertising is a new form of advertising in the city, the most common form of outdoor advertising should be outdoor billboards. Outdoor billboards have many advantages, such as strong visual impact, can be seen everywhere, etc.. However, outdoor billboards also have a huge security risk. The following small detail for you what. Detection of outdoor advertising

　　近年来，我国已发生多起户外广告牌掉落事件，轻者砸坏车辆、建筑物，重者砸伤行人。给市民的正常生活造成了巨大的安全隐患。

　　In recent years, China has occurred on the billboards fall event, who smashed vehicles, buildings, or injured pedestrians. Great hidden troubles to the normal life of the people.

　　小编发现大部分广告牌都要使用5-10年，好的广告牌的使用寿命远不止10年，使用这么久是没有问题的。但是，很多一般的广告牌使用寿命没有这么长。这些商家都是抱着“能用就用”的心态，尽量延长广告牌的使用年限，很少主动更换残旧的广告牌。越是小的商铺越是如此。

　　Xiao Bian found that most billboards are used in 5-10, billboard good service life more than 10 years, the use of such a long time is not a problem. However, many general billboards life not so long. These businesses are holding "can be used" mentality, try to extend the billboard service life, rarely initiative to replace the old billboard. The more small shops more so.