Quantifying minimum mobility and transport needs: The who, the where and the why

Arnz, M., Soomauroo, Z., Fisch-Romito, V., Min, J. ORCID: https://orcid.org/0000-0002-0020-1174, Millward-Hopkins, J., Kishimoto, P. ORCID: https://orcid.org/0000-0002-8578-753X, Boza-Kiss, B. ORCID: https://orcid.org/0000-0003-4005-2481, Zimm, C. ORCID: https://orcid.org/0000-0001-5603-1015, & van Ruijven, B. ORCID: https://orcid.org/0000-0003-1232-5892 (2025). Quantifying minimum mobility and transport needs: The who, the where and the why. Energy Research & Social Science 128 e104306. 10.1016/j.erss.2025.104306.

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Abstract

The concept of “sustainable consumption corridors” bridges two topics critical to assessing energy and transport systems: human wellbeing and planetary boundaries. However, large disagreements remain regarding how to define minimum, essential and decent levels of demand, which form the floor of such corridors. Aggregate approaches based upon distance travelled (e.g. passenger-kilometres) are insufficient, as they omit why people move. To address this gap, we build upon established theories of fundamental human needs and needs-oriented mobility research to define “decent mobility” as the condition when an individual can enact a set of trips that allow satisfaction of their needs, within their resources and capabilities. We explain how this definition unifies (i) individual capabilities and resources (time, money), (ii) available physical infrastructure and services, and (iii) socio-political contexts that shape personal freedom. We then operationalise and quantify decent mobility with a “persona” approach. We model two case studies with very distinct mobility systems – Switzerland and Mauritius – to illustrate the flexibility of the framework. They show which methods and data sources are required to consistently assess decent mobility of individuals, as well as travel time, distance, energy use, and emissions. Overall, the framework offers a method for evaluating present and future transport systems by putting human needs and their heterogeneity at the centre.

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