Factors Affecting Personal Autonomy and Perceived Accessibility of People with Mobility Impairments in an Urban Transportation Choice Context

This paper studies factors affecting personal autonomy and perceived accessibility of people with mobility impairments in an urban transportation choice context, taking the city of Tunja, Colombia, as a case study. In the context of the research, mobility impairments refer to a person's inability to use one or more of his/her extremities, or a lack of strength to walk. The authors conducted a survey in February 2018, using a face-to-face questionnaire consisted of three parts that were relevant to the study: facing a discrete choice experiment, rating a set of indicators of latent variables, and reporting the main socioeconomic characteristics. The authors estimated a hybrid discrete choice (HDC) model to identify the socioeconomic characteristics affecting personal autonomy and perceived accessibility and also test the hypothesis that these latent variables are determinants in the choice process of urban transportation mode for people with mobility impairments. The empirical results demonstrate that perceived accessibility is different for travelers with a low income, wheelchair users, mobility impairments caused by aging and transit dependents. The authors also find that personal autonomy varies depending on car owners, permanent mobility impairments, wheelchair users, and workers in comparison with other people. The population heterogeneity the authors obtained through the latent variables allows us to identify policies to improve the quality of life for people with mobility impairments. This paper advances the knowledge of how tangible and latent attributes affect the transportation choice process for people with mobility impairments by estimating an HDC model that integrates waiting time, travel time, urban transportation costs, personal autonomy, and perceived accessibility. The results also contribute to a better understanding of the transportation needs of people with mobility impairments in developing countries.


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  • Accession Number: 01711694
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 3 2019 3:04PM