Examining the Discrepancies between Self-Reported and Actual Commuting Behavior at the Individual Level
Document Type
Journal Article
Publication Date
2022
Subject Area
place - north america, place - urban, planning - surveys, planning - methods, technology - ticketing systems, technology - passenger information, ridership - commuting, ridership - behaviour
Keywords
planning and analysis, travel survey methods, travel surveys, public transportation, transformative trends in transit data
Abstract
For decades, transportation researchers have used survey data to understand the factors that affect travel-related choices. Nowadays, travel surveys lay the foundation of travel behavior analysis for transportation modeling, planning, and policy-making. The development of information technology for urban sensing has enabled substantial improvements to be made in survey-elicited and passive mobility data collection. Actively collected and passive data are very different, and being able to compare and integrate them could allow stakeholders to achieve a greater understanding of human mobility. The comparison between survey self-reported travel behavior and actual travel behavior revealed by urban and mobile systems provides us with the opportunity to find potential discrepancies. Previous work has examined these discrepancies mostly at the population level. An individual-level investigation of these discrepancies could provide many benefits, from increasing our understanding of survey and passive data accuracy and collection, to designing personalized transportation services. In this study, the discrepancies between self-reported and observed travel behavior are analyzed at both the individual and aggregated level by utilizing the available mobility data, namely, survey-based commuting diaries and passive mobility records. We propose a group of discrepancy metrics for commuting activities for which we have available and comparable data, and apply the framework to an empirical analysis at the Massachusetts Institute of Technology in Cambridge, U.S.A. Our results show that survey-elicited commuting diaries are quite reliable when examining overall commuting trends, whereas passive mobility data are more suitable for investigating individual-level commuting behavior. Furthermore, we identify the association between discrepancies in commuting behavior and certain individual characteristics, for example, employee type and age.
Rights
Permission to publish the abstract has been given by SAGE, copyright remains with them.
Recommended Citation
Su, T., Renda, M.E., & Zhao, J. (2022). Examining the Discrepancies between Self-Reported and Actual Commuting Behavior at the Individual Level. Transportation Research Record: Journal of the Transportation Research Board, Vol. 2676(2), pp. 118-131.
