Ludovic Leclercq is a Research Director at Université Gustave Eiffel (France). He is also a Full Professor (15% part-time) at TU Delft (Netherlands), holding a chair in Transportation Systems Modelling in the Era of New Mobility. He has received his engineering and master's degrees in Civil Engineering in 1998, his PhD in 2002 and his habilitation thesis (HDR) in 2009. He is currently head of the LICIT-ECO7 laboratory, a joint research unit from Univ Eiffel and ENTPE (about 50 people). His research interests correspond to multiscale and multimodal dynamic traffic modeling and the related environmental externalities. Smart cities, mobility as a service, sustainable and reliable transportation systems are some of the applications his researches are targeting. He is the current chair (2021-2024) of the committee "Traffic Flow Theory and Characteristics" ACP50 of the TRB. He is also a member of the international advisory committee of ISTTT. He is co-editor-in-chief of Data Science in Transportation and an associate editor for Transportation Research part C, Transportation Science and the journal Transportmetrica B. He is also a member of many editorial boards including Transportation Research part B. He has co-authored 114 publications in top peer-reviewed journals, has supervised 15 PhD and is currently supervising 7 PhD students. In 2015, he was awarded for 5 years an ERC consolidator grant in Social Science and Humanities. In 2020, he was awarded the ‘Grand Prix de l’Université de Lyon’, a career award for my achievement in the Transportation field.