Speaker
Description
Increasing urbanization intensifies mobility demand, leading to increased noise and air pollution exposure and reinforcing socio-spatial inequalities. Addressing this challenge requires a better understanding of interactions between transport policies and exposure distributions, as well as decision-support tools to evaluate emerging mobility patterns, including multimodality and active transport. The SYMEXPO project developed a systemic framework to assess mobility-related exposures using a multi-agent approach, in which urban dwellers are represented as agents moving through dynamic pollution fields. This presentation focuses on the project’s contributions in environmental acoustics. Based on the MobiliSense cohort, analyses highlight the key role of activity patterns and transport modes in shaping high noise exposure levels. In parallel, integrated modelling chains were developed to simulate spatiotemporal variations in noise at neighbourhood and metropolitan scales in the Lyon Metropolis. These rely on two traffic models, SYMUVIA and MATSim, coupled with the NoiseModelling software. The presentation will highlight key methodological advances, discuss current limitations, and emphasize the contribution of dynamic modelling to multidimensional exposure assessment. Particular attention will be paid to acoustic exposure, with case studies focusing on the identification of critical noise exposure areas and multicriteria assessments of traffic restriction strategies around schools.