Why do we rely on cars? Car dependence assessment and dimensions from a systematic literature review

Abstract

Abstract “Car dependence” emerges as an academic concept supported by decades of multidisciplinary research, which aims to understand the factors that drive car-based choices. The variety of approaches and indicators used to interpret this phenomenon underscores its multidimensionality and highlights the necessity for a comprehensive framework to define and operationalise it. This paper contributes to this goal by conducting a systematic literature review that examines the indicators, associations, and meanings used by research in defining and quantifying car dependence. Results show that car dependence has been mainly studied considering transport demand, despite criticisms pointing out to the need of including accessibility and subjective perceptions as well. As a consequence, the paper proposes a holistic approach to the term car dependence by proposing six dimensions covering the full spectrum of the concept as presented in the academic literature. The findings also suggest to move towards harmonising measures of the concept, which would facilitate the development of policies and the assessment of their effectiveness.

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