关键词: 粗糙集, 支持向量机, 高速公路, 事件检测

Abstract: Against of the limitations of current expressway incident detection algorithm，a traffic incident detection algorithm based on Rough Sets（RS） theory and Support Vector Machine（SVM） is proposed.On the basis of introducing the principle of Rough Sets theory and Support Vector Machine，the detection algorithm method is given.Further，variety of algorithms simulation and performance comparison is done with Matlab.Simulation results show that freeway incident detection algorithm based on RS and SVM has such advantages as high detection rate，fast training ability and good generalization.It is found to be potentially applicable in practice.

Key words: Rough Sets（RS）, Support Vector Machine（SVM）, freeway, incident detection