According to the traffic conditions and the characteristics of traffic accidents on high-class highway in China, the outstanding factor method is put forward to analyze the black spots.

结合中国高等级公路的交通条件与交通事故特点，提出了分析道路交通事故多发点事故成因的突出因素法。

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Built initially to help deal with the floods that regularly threatened the city, it now co-ordinates 30 government agencies and provides mobile applications to keep citizens in touch with potential accidents, traffic black-spots and other city updates.

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