The Knowledge Structure of Policy and Digital Transportation Platform: A Bibliometric Analysis

The rapid expansion of digital transportation platforms such as ridehailing and Mobility-as-a-Service (MaaS) has transformed urban mobility while simultaneously raising complex governance challenges.Although scholarly interest in this domain has increased significantly, existing studies remain fragmented across disciplines, which makes it difficult to grasp the overall knowledge structure.To address this gap, this study applies a bibliometric analysis to systematically examine research on policy and digital transportation platforms.Data were retrieved from the Scopus database covering the period 2000-2023, and after data cleaning, the Bibliometrix R-package (Biblioshiny) was used to conduct performance analysis and science mapping, including keyword co-occurrence, thematic mapping, and thematic evolution.The results reveal a sharp increase in publications after 2018, with Australia, the United States, China, and several European and Asian countries as the most active contributors.Influential outlets include Transportation Research Part A, Sustainability, and Transport Policy.The scientific mapping highlights four thematic domains: urban transportation and decision-making as foundational themes, sustainability and energy policy as motor themes, human-centered approaches as niche themes, and intelligent systems as emerging themes.Thematic evolution further shows a progression from broad conceptual discussions in the early years to more specialized, interdisciplinary, and policy-oriented research in recent years.Overall, this study provides a comprehensive knowledge map of digital transportation platform policy research and identifies future research opportunities related to socio-economic issues, Global South perspectives, and the integration of advanced digital technologies into mobility governance