Social Transportation: Social Signal and Technology for Transportation Engineering

Welcome to the first issue of the IEEE Transactions on Computational Social Systems (TCSS) this year, and Happy New Year to everyone. We would like to take this opportunity to express sincere gratitude to our editors, reviewers, authors, and readers for your support and great efforts devoted to TCSS. Also, we want to express the best wishes to you all, and hope you have a happy, healthy, and fruitful 2019.