In the morning of March 25, 2024, Mr. He Peng successfully passed his PhD research proposal exam. The title of his proposal is “Enhancing and optimizing carbon emissions trading policies in multimodal transportation”. His profound knowledge and excellent presentation helped him win a good evaluation from the external examiner, Dr. Amin Hammad, and other examining committee members (Drs. Zhi Chen, Rebecca Dziedzic, and Chunjiang An).