Wichai Siwakosit is an associate professor in mechanical engineering and a director of Kasetsart University rail engineering center (KURAIL). He is currently serving as a chairman of the institution of railway signal engineers Thailand section (IRSE TS). He has been a member of the PPP selection committees for MRTA pink line and MRTA yellow line, and a member of PPP overseeing committees for MRTA blue line and MRTA purple line. His interests include PPP in railway projects, rolling stocks, signalling and telecommunication technology, and problem solving in railway operation and maintenance. He received his B.Eng. in mechanical engineering from Kasetsart University in 1995 and his M.S. and Ph.D. in mechanical and aeronautical engineering from the University of California Davis in 1998 and 2001, respectively.