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) 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 tUniversidad 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

  • Our paper ‘Economies and diseconomies of scale in on-demand ridepooling systems‘, co-author with Alejandro Tirachini and Javier Alonso-Mora, has just been published in Economics of Transportation (May 2023).
  • I’ve been invited to give a talk at the University of New South Wales, at the rCITI Seminar. It will take place on May 9th at noon, about the integration of on-demand ridepooling into public transport (May 2023).
  • Friday, April 28th, at 2 PM, I am giving a talk at the TransportLab Seminar, at the University of Sydney. The talk is entitled ‘Towards the utilisation of on-demand ridepooling in public transport systems’. (April 2023).
  • I have joined the University of Sydney as a Lecturer! Soon news about PhD positions (April 2023).
  • We’ve just uploaded the pre-print of our paper ‘Pooled Grocery Delivery with Tight Deadlines from Multiple Depots’ co-authored with Maximilian Kronmüller and Javier Alonso-Mora (March 2023).
  • We are being visited by Dr. Kenan Zhang in January 25-27th. She is giving the next talk at the LAC Seminar Series at TU Delft, entitled ‘CARMA: Fair and efficient bottleneck congestion management with karma’. It will take place in person (Pulse Hall 4, Faculty 3M) and online! (January 2023).
  • Next Wednesday 11/January I will be giving a talk at the LAC Seminar Series at TU Delft, entitled ‘Towards the utilisation of on-demand ridepooling in public transport systems’. It will take place in person (Pulse Hall 4, Faculty 3M) and online! (January 2023).
  • I presented our paper ‘How Openness to Sharing Impacts the Total Vehicle Kilometres with Shared Automated Vehicles: A Theoretical Analysis’, co-authored with Baiba Pudane, at the IATBR Conference in Chile (December 2022).
  • My student Nander Theodoridis has successfully defended his M.Sc. thesis about including reservations in on-demand ridepooling, obtaining an 8. Congrats! (November 2022).
  • I have given a talk ‘‘Towards integrating on-demand pooled services into public transport networks’ at TU Eindhoven (November 2022). 
  • Our paper ‘A Water-Filling Primal-Dual Algorithm for Approximating NonLinear Covering Problems’, co-authored with Ignacio Morales and José Verschae, has just been published in the SIAM Journal on Discrete Mathematics (November 2022).
  • Our paper ‘The job of public transport, ride-hailing and delivery drivers: conditions during the COVID-19 pandemic and implications for a post-pandemic future’, co-authored with Felipe Ruiz, Giorgio Boccardo, Daniela Rubio, Alejandro Tirachini, and Jorge Rosales-Salas, has just been published in the special issue ‘Post-Pandemic Mobility’ in Travel Behaviour & Society (November 2022).
  • Our paper ‘Routing of Heterogeneous Fleets for Flash Deliveries via Vehicle Group Assignment’, co-authored with Maximilian Kroenmuller and Javier Alonso-Mora, has just been published in the Proceedings of IEEE-ITSC 2022 (November 2022).
  • My student Mees Matthieu has successfully defended his thesis about controlling unreliability in on-demand ridepooling, obtaining an 8.5. Congrats! (November 2022).
  • We have uploaded the pre-print of our paper ‘Beyond the last mile: Different spatial strategies to integrate On-Demand services into Public Transport in a simplified city‘, co-authored with Sergio Jara-Díaz and Javier Alonso-Mora (October 2022).
  • Beginning in March 2023, I am joining the Transport Engineering group at the University of Sydney as an Assistant Professor (Lecturer in the Australian nomenclature)! (October 2022).
  • I am presenting our paper ‘Unreliability in ridesharing systems: Measuring changes in users’ times due to new requests‘ at the online conference Bridging Transportation Researchers 2022 (August 2022).
  • I’ve published an opinion piece in Spanish, about the so-called Uber-Files, revisiting the Chilean experience with ridehailing apps 10 years after their arrival (July 2022).
  • I’ve presented our paper ‘Beyond the last mile: Different spatial strategies to integrate On-Demand services into Public Transport in a simplified city’ at ITEA 2022 in Toulouse (June 2022).
  • Our paper ‘Optimal Item Pricing in Online Combinatorial Auctions’, co-authored with José Correa, Andrés Cristi, Tristan Pollner, and Matthew Weinberg, is being presented at IPCO 2022 and has just been published in its Proceedings (June 2022).
  • I’ve presented our paper ‘The job of public transport, ride-hailing and delivery drivers: conditions during the COVID-19 pandemic and implications for a post-pandemic future’ at the hEART Conference in Lovaine, Belgium. Very nice to go back to in-person Conferences! (June 2022).
  • Our paper ‘Group-based Distributed Auction Algorithms for Multi-Robot Task Assignment‘, co-authored with Xiaoshan Bai, Maximilian Kroenmuller, Luzia Knoedler, and Javier Alonso-Mora, is forthcoming at IEEE Transactions on Automation Science and Engineering (May 2022).

Older news

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