Alexis Gumy is a doctoral student at the Urban Sociology Laboratory of the Swiss Federal Institute of Technology in Lausanne. As a graduate in civil engineering from the same school, his research is based on quantitative methods applied to the analysis of lifestyles and forms of mobility. Through the various themes he addresses, he seeks to overcome classical, functionalist and normative statistical approaches, by considering experience or opinions as determining factors in the study of behavior. For example, he has measured the impact of the stress factor felt in the practice of “long-distance commuting”. As a continuation of his work, he is currently interested in the relationship between practices and representations in the context of European cross-border agglomerations (Swiss National Research Found). Finally, he is also assistant-teacher in several courses at the ENAC faculty of the EPFL.