He presided over the research work such as "Study on commuter transportation mode selection of residents along Beijing rail transit", "Study on holiday traffic characteristics and countermeasures in Beijing", "Study on long-term expectation of rail transit in Beijing metropolitan area" and "Study on demand forecast of rail transit in Zhongshan", and participated in national projects such as "Study on data acquisition technology and traffic capacity of signalized intersections", a key project of the Tenth Five-Year Plan. He has published more than ten papers in professional journals at home and abroad, such as Transport Research Record, Journal of Japanese Civil Planning Society, China Journal of Highway and Transportation, and international societies such as TRB and IATBR, and published translation 1, co-authored 1.