Adresse:
Cité Descartes, Champs sur Marne, France.
Accès: Cité Descartes
Organisation:
Nadir Farhi, Neila Bhouri, Negin Alisoltani
Session prochaine le 6 juin (session hybride: présentiel, dans la salle A121+ visioconférence)
Progamme:
15h00 | Xavier Boulet, Expert mobility engineer at AIMSUN |
Digital Twin & Modelling to improve the Operational Performance of Mobilities | |
| | Abstract: The presentation is dedicated to digital twins and their role in road traffic modeling. We will explore how these digital replicas enable the simulation, analysis, and optimization of traffic flow by integrating real-time data. Thanks to technological advances, we are now able to virtually recreate entire road networks, anticipate congestion, and propose dynamic solutions to improve traffic fluidity. These intelligent models provide urban managers with powerful tools to make informed decisions, reduce environmental impact, and enhance road safety |
| | Bio: Dr Xavier Boulet, holds an engineering degree and a PhD in mobility simulations. He began his professional career as a Research & Development engineer at Sopra Steria, where he worked for one year. He then spent three years at the Institute for Technological Research (IRT) SystemX, contributing to multimodal mobility simulation projects. During this time, he was involved in the development of mobility simulators and authored several research papers on multimodal traffic modeling as part of his PhD.He has now been working for five years at Aimsun SARL as a technical expert, focusing on digital twins and travel demand modelin Aimsun provides digital solutions for smart, sustainable mobility across all modes of transport. The team designs and creates digital twins dedicated to road traffic management, planning and real time operation. The Aimsun portfolio supports clients' decision-making process for urban mobility transformation projects and improves traffic operations with real-time traffic forecasting and simulation. Aimsun provides services to around 100 clients in France, such as cities, government bodies, local communities, highway operators, airport authorities, public transport authorities and transport companies. The Aimsun portfolio provides clients with concrete benefits for traffic management: Flow Management, Decarbonization, Infrastructure Cost Efficiency, Active Mobility and Safety. Aimsun France is leaded by Benoit Vedel: benoit.vedel@aimsun.com, phone + 33 6 32 58 75 64 or www.linkedin.com/in/benoitvedel. |
16h00 | Prateek Bansal, Professor at the National University of Singapore (NUS) |
Analytical Data Fusion Approaches to Update Mobility Patterns in Real-time. | |
| | Abstract: Conventional activity-based models primarily rely on household travel survey (HTS) data, which often suffers from low spatial heterogeneity due to limited sampling rates. Passively collected mobility (PCM) data, such as cellular traces and transit smart card, offers extensive spatial coverage but poses significant challenges for integration with HTS data because of differences in spatial resolution and attributes. To address these limitations, this study introduces a novel data fusion approach that combines the strengths of both data sources. The proposed method focuses on two key components: first, the generation of multimodal time-dependent origin-destination (OD) matrices by integrating HTS and PCM data to improve the representation of multimodal travel demand; second, the development of complete activity schedules for synthetic populations by fusing the OD matrices generated in the first step with HTS data. With the integration of PCM data, this approach enables the estimation and real-time updating of multimodal OD demand matrices and activity schedules, paving the way for more dynamic, data-driven, and resilient transportation planning. |
| Bio: Dr Prateek Bansal is a Presidential Young (Assistant) Professor at the National University of Singapore (NUS). Before joining NUS in 2022, he was a Leverhulme Trust Early Career Fellow at Imperial College London and did a Ph.D. from Cornell, an MSc from UT Austin, a BTech from IIT Delhi. Prateek leads the Behavioural Cognitive Science Lab at NUS and is a co-principal investigator of the Adaptive Mobility module at Future Cities Laboratory, Singapore. His research group is interested in creating new methods to address challenging questions related to mobility behavior and the adoption of emerging technologies at an individual level and an urban scale. His research has led to over 70 journal articles. Apart from top Transportation journals, he regularly publishes in interdisciplinary journals like Energy Economics and Statistics and Computing. He also serves as the editorial board member of Transportation Research Part A: Policy and Practice, Transportation Research Part B: Methodological, and Journal of Choice Modelling, among others. He is a member of the TRB’s standing committees on Travel Survey Methods (AEP25) and Travel Forecasting (AEP50), and a regular board member of the International Association of Travel Behavior Research (IATBR). |
31