Directed by Michel Bierlaire, the Transport and Mobility Laboratory is active in modeling, optimization and simulation of transportation systems, with a specific emphasis on the mobility of individuals.

This webpage contains the academic output of the laboratory. We are committed to open science. Links to the specific documents are available. Also, if you click on the bibtex button next to a reference, it gives you access to the reference in bibtex format, that you can copy and paste to your bibliography file.

2025

• Haering T., Legault R., Torres F., Bierlaire M. (2025). Heuristics and Exact Algorithms for Choice-Based Capacitated and Uncapacitated Continuous Pricing. Report TRANSP-OR 250508bibtex

  
  @TechReport{HaerLegaTorrBier2025,
    author = {Tom Haering and Robin Legault and {Fabian Alejandro} Torres and Michel Bierlaire},
    title = {Heuristics and Exact Algorithms for Choice-Based Capacitated and Uncapacitated Continuous Pricing},
    institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
    year = {2025},
    type = {Technical Report},
    number = {TRANSP-OR 250508},
    address = {Lausanne, Switzerland}}}
  

• Ilinov P., Matveenko A., Tsakas E., Mark V. (2025). Sequential Search with Flexible Information. Report TRANSP-OR 250331bibtex

  
  @TechReport{IlinMatvSharTsakVoor25,
    author = {Pavel Ilinov and Andrei Matveenko and Elias Tsakas and Voorneveld Mark},
    title = {Sequential Search with Flexible Information},
    institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
    year = {2025},
    type = {Technical Report},
    number = {TRANSP-OR 250331},
    address = {Lausanne, Switzerland}}}
  

• Ricard L., Desaulniers G., Lodi A., Rousseau L. (2025). Chance-constrained battery management strategies for the electric bus scheduling problem. Report arXiv:2503.19853bibtex

  
  @TechReport{RicaDesLodiRouss25,
    author = {L\'ea Ricard and Guy Desaulniers and Andrea Lodi and Louis-Martin Rousseau},
    title = {Chance-constrained battery management strategies for the
  
  electric bus scheduling problem},
    institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
    year = {2025},
    type = {Technical Report},
    number = {arXiv:2503.19853},
    address = {Lausanne, Switzerland}}}
  

• Ben-Akiva M., Bierlaire M., Doyme K., Gershenfeld S., Picard N., Schafer A., Seshadri R., Sivakumar A., Steg L. (2025). The Behavioral Dimension of Transport Decarbonisation. Report TRANSP-OR 250427bibtex

  
  @TechReport{BenABierDoym25,
    author = {Moshe Ben-Akiva and Michel Bierlaire and Khan Doyme and Shari Gershenfeld and Nathalie Picard and Andreas Schafer and Ravi Seshadri and Aruna Sivakumar and Linda Steg},
    title = {The Behavioral Dimension of Transport Decarbonisation},
    institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
    year = {2025},
    type = {Technical Report},
    number = {TRANSP-OR 250427},
    address = {Lausanne, Switzerland}}}
  

• Kukic M., Bierlaire M. (2025). Adaptive synthetic generation using one-step Gibbs Sampler. Report TRANSP-OR 250424bibtex

  
  @TechReport{KukicBier2025,
    author = {Marija Kukic and Michel Bierlaire},
    title = {Adaptive synthetic generation using one-step
  
  Gibbs Sampler},
    institution = {Transport and Mobility Laboratory, Ecole Polytechnique F\'ed\'erale de Lausanne},
    year = {2025},
    type = {Technical Report},
    number = {TRANSP-OR 250424},
    address = {Lausanne, Switzerland}}}
  

2025

• Bierlaire M., Meunier F., Ricard L., Vogler P. Combinatorial Choices June 22, 2025. (Keynote presentation)12th Triennial Symposium on Transportation Analysis, Okinawa, Japan.bibtex

  
  @Misc{2025Tristan,
    author = {Michel Bierlaire and Fr\'ed\'eric Meunier and L\'ea Ricard and Prunelle Vogler},
    title = {Combinatorial Choices},
    howpublished = {\url{https://transp-or.epfl.ch/documents/talks/2025Tristan.pdf}},
    year = {2025},
    note = {Presented at 12th Triennial Symposium on Transportation Analysis, Okinawa, Japan}}}
  

• Rezvany N., Hillel T., Bierlaire M. Integrating housing and transport interactions: A strategic dynamic approach June 10, 2025. 13th symposium of the European Association for Research in Transportation (hEART) , Munich, Germany.bibtex

  
  @Misc{2025Rezvany_hEART,
    author = {Negar Rezvany and Tim Hillel and Michel Bierlaire},
    title = {Integrating housing and transport interactions: A strategic dynamic approach},
    howpublished = {\url{https://transp-or.epfl.ch/documents/talks/2025Rezvany_hEART.pdf}},
    year = {2025},
    note = {Presented at 13th symposium of the European Association for Research in Transportation (hEART) , Munich, Germany}}}
  

• Rezvany N., Hillel T., Bierlaire M. Integrating housing and transport interactions: A strategic dynamic approach May 15, 2025. 25th Swiss Transport Research Conference (STRC), Ascona, Switzerland.bibtex

  
  @Misc{2025Rezvany_STRC,
    author = {Negar Rezvany and Tim Hillel and Michel Bierlaire},
    title = {Integrating housing and transport interactions: A strategic dynamic approach},
    howpublished = {\url{https://transp-or.epfl.ch/documents/talks/2025Rezvany_STRC.pdf}},
    year = {2025},
    note = {Presented at 25th Swiss Transport Research Conference (STRC), Ascona, Switzerland}}}
  

• Preto A., Danalet A., Joschka B., Rezvany N., Torres F., Bierlaire M. Differentiation of Modal Preferences in Public Transportation May 14, 2025. 25rd Swiss Transport Research Conference (STRC), Swiss Federal Railway, Ascona, Switzerland.bibtex

  
  @Misc{2025Preto_STRC,
    author = {Anne-Val\'erie Preto and Antonin Danalet and Bischoff Joschka and Negar Rezvany and {Fabian Alejandro} Torres and Michel Bierlaire},
    title = {Differentiation of Modal Preferences in Public Transportation},
    howpublished = {\url{https://transp-or.epfl.ch/documents/talks/2025Preto_STRC.pdf}},
    year = {2025},
    note = {Presented at 25rd Swiss Transport Research Conference (STRC), Swiss Federal Railway, Ascona, Switzerland}}}
  

• Ilinov P., Matveenko A., Rastislav R., Rava d. Efficient Social Defaults March 21, 2025. THEEM 2025, Thurgau Institute of Economics at the University of Konstanz, Kreuzlingen, Switzerland.bibtex

  
  @Misc{Ilinov_Kreuz2025,
    author = {Pavel Ilinov and Andrei Matveenko and Rehak Rastislav and {de Silveira} Rava},
    title = {Efficient Social Defaults},
    howpublished = {\url{https://transp-or.epfl.ch/documents/talks/Ilinov_Kreuz2025.pdf}},
    year = {2025},
    note = {Presented at THEEM 2025, Thurgau Institute of Economics at the University of Konstanz, Kreuzlingen, Switzerland}}}
  

2025

• Cortes Balcells C., Krueger R., Bierlaire M. (2025). Modeling Disease Spread: Integrating Mobility, Awareness, and Behavior. Transportationabstract

  The COVID-19 pandemic has underscored the vital link between epidemiology and transportation, particularly in the context of activity-travel behavior. While much research has explored the role of mobility in disease spread, there is a notable gap in understanding how individual behavioral choices, especially regarding testing, influence these dynamics. This paper introduces the Mobility-Aware Behavioral Epidemiological Model (MABEM), an innovative framework that integrates activity-based modeling with latent variables to more accurately represent the impact of testing decisions on disease propagation. Using data from the canton of Vaud, Switzerland, our model simulates the interactions between individual behavior, mobility, and health status, revealing significant underreporting of infections and highlighting the crucial role of testing choices in shaping observed infection rates. The results suggest that testing behaviors vary significantly across different demographic groups and regions, influencing both individual activity patterns and overall disease spread. MABEM model proves to be computationally efficient and offers valuable insights for designing targeted public health interventions. Despite some limitations related to data availability, this research provides a comprehensive approach to understanding the interplay between mobility, individual behavior, and disease dynamics, offering new possibilities for more effective disease containment strategies.

  bibtex

  
  @Article{CortKrueBier25,
    author = {Cloe {Cortes Balcells} and Rico Krueger and Michel Bierlaire},
    title = {Modeling Disease Spread: Integrating Mobility, Awareness, and Behavior},
    journal = {Transportation},
    year = {2025},
    DOI = {10.1007/s11116-025-10613-w},
    note = {Accepted on Mar 22, 2025}}}
  

• Beine M., Bierlaire M., Docquier F. (2025). New York, Abu Dhabi, London or Stay at Home? Using a Cross-Nested Logit Model to Identify Complex Substitution Patterns in Migration. Journal of Economic Geography:lbaf007bibtex

  
  @Article{BeinBierDocq24,
    author = {Michel Beine and Michel Bierlaire and Fr\'ed\'eric Docquier},
    title = {New York, Abu Dhabi, London or Stay at Home? Using a Cross-Nested Logit Model to Identify Complex Substitution Patterns in Migration},
    journal = {Journal of Economic Geography},
    year = {2025},
    pages = {lbaf007},
    DOI = {10.1093/jeg/lbaf007},
    note = {Accepted on Jan 16, 2024}}}
  

• Atac S., Obrenovic N., Bierlaire M. (2025). Bike Sharing Systems: The Impact of Precise Trip Demand Forecasting on Operational Efficiency in Different City Structures . Journal of Cycling and Micromobility Research 3 (100058)abstract

  Increasing environmental concerns drive interest in sustainable solutions across various fields. Vehicle sharing systems such as one-way station-based bike sharing systems (BSSs) offer one such solution in transportation, although they pose operational challenges like vehicle imbalance. While many studies focus on optimizing rebalancing operations using trip demand forecasting, the added value of precise trip demand forecasting remains unexplored. This study assesses the added value of collecting detailed trip demand data and developing trip demand forecasting models. To achieve this, we create a simulation–optimization framework representing a city BSS in operation during the day. We use a discrete-event simulator representing the system dynamics and an enhanced mathematical model optimizing the rebalancing operations. We employ clustering in the optimization module to manage larger case studies, dividing the problem into smaller sub-problems. Our computational experiments compare two main scenarios, perfect demand forecast and unknown future demand, as well as several intermediate scenarios where partial future trip demand information is available. These scenarios allow us to determine the trade-off between lost trip demand and rebalancing operations costs, assess demand forecasting benefits, and identify the budget’s upper limit for precise trip demand forecasting. Subsequently, we conduct experiments on one synthetic (35 stations) and four real-life case studies, ranging from small systems (21 and 298 stations) to large systems (681 and 1361 stations). Results reveal that precise trip demand forecasting has varying impacts on small and large BSSs, with larger BSSs benefiting the most without significantly increasing the rebalancing operations costs. We also observe that the most significant improvements occur between 0% and 40% trip demand knowledge while beyond 60%, the increase in returns diminishes. The findings of this study offer valuable insights for operators in enhancing service levels and optimizing resource allocation.

  bibtex

  
  @Article{AtacObreBier25,
    author = {Selin Atac and Nikola Obrenovic and Michel Bierlaire},
    title = {Bike Sharing Systems: The Impact of Precise Trip Demand Forecasting on Operational Efficiency in Different City Structures 
  
  },
    journal = {Journal of Cycling and Micromobility Research},
    year = {2025},
    volume = {3},
    number = {100058},
    DOI = {10.1016/j.jcmr.2025.100058},
    note = {Accepted on Jan 21, 2025}}}
  

• Ahmed S., Fountas G., Lurkin V., Anastasopoulos P., Zhang Y., Bierlaire M., Mannering F. (2025). The State of Urban Air Mobility Research: An Assessment of Challenges and Opportunities. IEEE Transactions on Intelligent Transportation Systems 26 (2):1375-1394bibtex

  
  @Article{AhmeFounLurkAnasZhanBierMann25,
    author = {{Sheikh Shahriar} Ahmed and Grigorios Fountas and Virginie Lurkin and Panagiotis Anastasopoulos and Yu Zhang and Michel Bierlaire and Fred Mannering},
    title = {The State of Urban Air Mobility Research: An Assessment of Challenges and Opportunities},
    journal = {IEEE Transactions on Intelligent Transportation Systems},
    year = {2025},
    volume = {26},
    number = {2},
    pages = {1375-1394},
    DOI = {10.1109/TITS.2024.3511453},
    note = {Accepted on Nov 28, 2024}}}
  

• Ortelli N., de Lapparent M., Varotto S., Bierlaire M. (2025). An integrated ordered logit and latent variable model for accident injury severity and risk-taking behavior. Transportation Research Part A: Policy and Practice 192 (104330)abstract

  This study presents a flexible model for risk-taking behavior and accident injury severity. It is specifically designed to evaluate the impact of Via Sicura, a Swiss road safety program, on the severity of accident outcomes. Our proposed model treats the risk-taking behavior of each driver as a latent variable that depends on a number of socioeconomic and contextual factors, and whose manifestation can be measured by means of behavioral indicators. The aggregated risk, a central feature of our framework, represents the combined latent risk-taking behaviors among all drivers within an accident and is successfully identified as explanatory of the severity of injuries sustained by all individuals involved. Our findings reveal that Via Sicura’s repressive measures successfully deter risk-taking behavior among drivers, preventing an estimated 63 fatal, 876 major and 2,303 minor injuries over a ten-year period.

  bibtex

  
  @Article{OrteDelaVaroBier24,
    author = {Nicola Ortelli and Matthieu {de Lapparent} and Silvia Varotto and Michel Bierlaire},
    title = {An integrated ordered logit and latent variable model for accident injury severity and risk-taking behavior},
    journal = {Transportation Research Part A: Policy and Practice},
    year = {2025},
    volume = {192},
    number = {104330},
    DOI = {10.1016/j.tra.2024.104330},
    note = {Accepted on Nov 15, 2024}}}