Dr. Sajjakaj Jomnonkwao is an associate professor and lecturer at the Department of Transportation Engineering, School of Transportation Engineering, Suranaree University of Technology, Nakhon Ratchasima, Thailand. He holds a B.Eng., M.Eng., and Ph.D. in Transportation Engineering from Suranaree University of Technology, Nakhon Ratchasima, Thailand. His research interests include driver behavior, tourism logistics, transportation safety, transport policy, transportation planning, and statistical modeling.