About me

I am Andrés Fielbaum, Mathematical Engineer and Ph.D. in Systems Engineering. My main fields of research are public transport, transportation networks, new transportation technologies, and transport-related algorithms. I am an Assistant Professor (Lecturer in the Australian nomenclature) leading the Share research line in the TransportLab, School of Civil Engineering at the University of Sydney.

I got my Ph.D. at Universidad de Chile under the supervision of Professor Sergio Jara-Díaz (2019), and did a postdoc at TU Delft supervised by Prof. Javier Alonso-Mora. Before that, I got my degree as Engineer and as an M.Sc. in Transportation Engineering at Universidad de Chile (2014). I have also worked as a researcher in Universidad de O’Higgins, and as an external lecturer in different courses at Universidad de Chile and Universidad Federico Santa María.

Latest news

  • I gave a talk about ‘The Increasing Gap Dynamics in a General Spatial Matching Model’ at the Workshop Stochastic Games and Online Decision Making at Universidad de Chile (December 2025).
  • I have been included for the first time in the single-year list of 2% top scientists by TopSciNet (December 2025).
  • My PhD student Regine Tejada was awarded for the best presentation in the Human-Centred Mobility Stream at TRANSW 2025. Congrats Regine! (November 2025)
  • I have joined the recently created Contemporary Inequalities Centre of the University of Sydney as a core member (November 2025).
  • I have presented our paper ‘Analysis of commuter mode choice with and without real-time Park-and-Ride information’, co-authored with Marc Award, at the 46th Australasian Transport Research Forum in Auckland (November 2025).
  • I’ve been interviewed by the scientific magazine Spektrum about the impact of metros and trams on cities (November 2025).
  • The pre-print of our paper ‘Analytical modelling of a stop-less modular bus service with an application to charging strategies comparison’, co-authored with Haoran Zhao and Neema Nassir, has been published online (November 2025).
  • My application to be promoted at the University of Sydney has been accepted. Since January I am a Senior Lecturer with a confirmed (tenured) position (October 2025).
  • I joined the Editorial Board of the journal Transport, Mobility & Society. This is an emerging journal, originated in Latin America, open-access, and with no APC (August 2025).
  • I am visiting Tongji University in Shanghai between 7-11 July. I am delivering the talk “Finding Modern Answers through a Classical Public Transport Model” at the College of Transportation, 08/July, and “Temporal Friction in On-demand Assigned Mobility: Short-term decisions, long-term dynamics, and the limits of optimisation” at the School of Economics and Management, 09/July (July 2025).
  • Our paper ‘Are users ready to accept fully flexible walking in on-demand mobility?’, co-authored with Andrea Pellegrini, has been published in Transportation Research Part C: Emerging Technologies (June 2025).
  • My paper ‘Coordination costs in spatial matching: Assigned versus onsite transport modes’ has been published in Transportation Research Part A: Policy and Practice (June 2025).
  • My team is presenting two papers at TRISTAN 2025 and four at CASPT 2025 (June 2025).
  • Our project ‘Design of Mixed Flexible-Fixed Public Transport Networks (FlexMobility)’, led by Javier Alonso-Mora and Bilge Atasoy (TU Delft), has been awarded an OTP grant from the Dutch NWO. Soon news about open positions! (May 2025).
  • Our paper ‘Idle wage as a tool to regulate the relationship between ride-hailing platforms and drivers’, co-authored with David Salas, Ruilin Zhang, and Francisco Castro, has been published in Transportation Research Part C: Emergin Technologies (April 2025).
  • Our team will has two accepted papers for TRISTAN 2025, and four papers for CASPT 2025. See you in Japan in June and July! (March 2025)
  • The pre-print of our paper ‘Are users ready to accept fully flexible walking in on-demand mobility?’, co-authored with Andrea Pellegrini, has become available (March 2025).
  • I have received a Faculty commendation for my excellent teaching of the course Transport Networks in 2024 (February 2025).
  • Our paper ‘What do walking and e-hailing bring to scale economies in on-demand mobility?’, co-authored with Kenan Zhang and Javier Alonso-Mora, has been published in Transportation Research Part B: Methodological (January 2025).

Older news

Map of the Metro lines in Santiago, Chile. The efficient design of a transit network is a challenging economic and combinatorial problem.