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Daily mobility is an ordinary problem that fits into the complexity of everyday household life. Mobility is also a dimension of identity, a predisposition which gives individuals a specific framework for dealing with activities and travels. Thus, households’ choices are made with a wide range of rational elements (economic, time, accessibility, etc.), but also with more sensible elements (preferences, past experiences, satisfaction, etc.). In addition, large-scale urban projects aim to improve modal split and to facilitate households’ commutes conditions. Since poles of employment generate the main concentrated flows of urban travel, those poles are at the core of strategic planning. Beyond improving mobility, changing job location may involve contrasted issues for households, positive (e.g., travel efficiency, sustainable mobilities, etc.) and negative (e.g., freedom of choice, undesirable mode change). This paper focuses on an exceptional workplace relocation (2015) in Montréal – McGill University Health Center – and explores the daily commute choices for more than 10,000 metropolitan workers. While metropolitan accessibility is sharply improved, the new workplace offers a low-quality mobility environment compared to former ones (n=5) located downtown. What mobility choices do metropolitan employees make in order to rebuild their travel routines? What is the importance of both mobility habits and mobility identities in commute changes/satisfaction? Using an internet retrospective survey (n=1 977) conducted with the concerned workers, mobility strategies have been explored. Principal component analyses and clustering are used to take into account lifestyles typology into a logistic regression model in order to explain mode choice according to identities, workers’ socioeconomic characteristics, built environment and structural urban characteristics. Beyond the importance of accessibility, attitudes towards mobility have strong explanation power for specific workers' profiles. These variables should be better embraced by transportation plans.

The application of the psycho-social paradigm of social representations in geographical studies is rather recent. However, this approach is considered to complement the work conducted in social geography where non-directive interview methods are often used. The main hypothesis of this paper is that mobility practice is not only influenced by the accessibility to transport infrastructures, but also structured by social representations about mobility, housing, and job. Based on a corpus of semi-structured interviews with 69 Franco-Luxembourgish cross-border commuters, the Multiple Correspondence Analysis (MCA) is employed to explore relations between different types of social representations and mobility practice. This mixed method allows to integrate both quantitative statistical data and qualitative discursive data. It is concluded that social representations can be envisaged as a theoretical approach to understanding mobility practice, and that the daily mobility practice is socially structured depending on various social representations of individuals which are also shaped by their social positions or social trajectories. Challenges related to the use of mixed methods in the research are also addressed in the methodological discussion.