Vincent Kaufmann is Associate Professor of Urban Sociology and Mobility at École Polytechnique Fédérale de Lausanne (EPFL). Since 2011, he is also scientific director of the Mobile Lives Forum in Paris. After a master's degree in sociology (University of Geneva) he did his Ph.D. at EPFL on rationalities underlying transport modal practices. He has been invited lecturer at Lancaster University (2000-2001), Ecole des Ponts et Chaussées, Paris (2001-2002), Laval University, Québec (2008) Nimegen University (2010), Université de Toulouse Le Mirail (2011), Politechnico Milan (2016), Université Catholique de Louvain (2004-2018) and Tongji University in Shanghai (2018). Ander Audikana is Master Class - Seal of Excellence Research Fellow at the Department of Architecture and Urban Studies (DAStU), Politecnico di Milano (Italy). He obtained a B.A. in sociology at the University of Deusto, a M.A. in city and regional planning at the University Paris 12 and the ENS Diploma in urban sociology at the École Normale Supérieure de Paris. He holds a PhD in sociology from the University Paris-Est. He was Fulbright-Schuman scholar in urban planning in the United States at George Mason University and at the University of California, Berkeley. He was also postdoctoral research fellow at the École Polytechnique Fédérale de Lausanne and the University of Deusto. Guillaume Drevon is currently working at the Luxembourg Institute of Socio-Economic Research – LISER – since 2021 as a research associate. Guillaume Drevon is also an associate scientist at the Urban Sociology Lab of the Swiss Federal Institute of Technology Lausanne. He obtained a B.A. in geography and a M.A. in territorial development and planning at the University of Grenoble-Alpes. He obtained an AFR-PHD grant from the Luxembourg National Research Fund. He holds a PhD in geography from the University of Grenoble-Alpes in partnership with the Luxembourg Institute of Socio-economic Research. A part of his research focuses on cross-border regions by developing an individual centered approach which reveals socio-spatial bridges across the border (attachment, identities, personal network, cross-border activities, cross-border past experiences).