For the complexity and diversity of the black-spot cause of formation, we find a method based on the rough set to determine the most important inducement of the black-spot, then we can repair the inducement in effect and save more time and money.

• 该文针对交通事故多发点成因的复杂性和多样性，提出通过粗集来对公路交通中的不利因素进行筛选，找到形成事故多发点的最大诱因，从而有针对性地进行整治，能够有效地节约时间和费用，避免不必要的人力、物力浪费。