Int’l Conference on Traffic and Transportation Engineering (CTTE 2020) to be held from October 23 to 25, 2020, in Xi’an China, is one of the special tracks within the World Congress on Engineering and Technology (CET 2020). The main objective of CTTE 2020 is to provide a platform for researchers, engineers and academicians from all over the world to present their research results and development activities in Traffic and Transportation Engineering.