Sérgio Batista is an Assistant Professor in Operational Research and Network Modelling at Instituto Superior Técnico, University of Lisbon. His research lies at the intersection of transportation science, applied mathematics, and decision science, focusing on the modelling and analysis of large-scale metropolitan mobility systems. His work develops mathematical and computational frameworks that integrate traffic dynamics, traveller behaviour, and network equilibrium to enable tractable, system-level analysis of urban transportation networks. A central contribution of his research is the development of aggregated modelling approaches that preserve the essential dynamics of congestion while enabling scalable analysis for policy and planning applications. His research programme bridges methodological advances in network modelling and optimisation with decision-support tools for congestion management, accessibility, and transport decarbonisation. He has published in leading international journals in transportation science and collaborates with international research groups, reflecting a trajectory of scientific independence and growing leadership in the field.