Sonderforschungsbereich (SFB) Transregio 391

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This Collaborative Research Center/Transregio is funded by the DFG (Deutsche Forschungsgemeinschaft) and the time period of the first phase is 10/2024 - 06/2028.
It is a joint project of TU Dortmund University and Ruhr University Bochum. Further participating institutions are Fachhochschule Dortmund, Hamburg University of Technology, Karlsruhe Institute of Technology, University of Duisburg-Essen, University of Hamburg, University of Münster, and RWI Leibniz Institute for Economic Research Essen.

Vision

TRR 391 is about to establish an internationally leading research center in the Ruhr Area for the development of statistical methodology that can process all types of spatio-temporal data from energy production and distribution, as well as transport of people and goods.
In TRR 391, we model, estimate, and predict spatio-temporal processes occurring in economic and technical applications. In doing so, we exploit the formal similarity of relevant statistical problems for methodological synergies and develop key techniques for the analysis of spatio-temporal data, which will enable efficient data-based decision-making in various areas of implementing the energy and transport transition over the next decades.

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Recent Submissions

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    Individual Mobility and Public Transport Subsidies
    (2025) Andor, Mark A.; Flintz, Joschka; Vance, Colin
    Politicians around the world are looking for ways to reduce the negative externalities of the transport sector. Subsidization of public transport is a popular remedy, but evidence on the associated causal effects remains scant. Based on a randomized controlled trial that tracks mobility behavior continuously via a mobile app, this study provides causal evidence on how individuals modify their mobility patterns when provided with temporary cost-free access to public transport. We further explore whether such access induces enduring shifts in mobility behavior after the reinstatement of regular fares. We randomly provide roughly half of our around 420 participants - whose selection targeted car users - with a one-month public transport ticket for their local area, and %Leveraging monitor travel behavior across all modes over three months. We find a statistically significant average increase of about two trips per month using public transport during the subsidization period. The rise in public transport utilization, however, is not paralleled by a reduction in car usage, nor does it yield a persistent alteration in mobility behavior in the subsequent month after the ticket expires.