Papers from the Sixth International Conference on Transportation Engineering, held in Chengdu, China, September 20-22, 2019. Sponsored by Southwest Jiaotong University and the Transportation & Development Institute of ASCE.

This collection contains 127 peer-reviewed papers on diverse transportation engineering issues.

Topics include: transportation planning and socio-economic development; traffic control and information technology; sustainable transportation methods; rail transit and high-speed rail operations; logistics and supply chain management; and transportation equipment performance and organization optimization.

This collection will be of interest to transportation researchers and practitioners as well as transportation planners and government officials.