Wehner Schulze on the Nantes campus
Roller bench on the Bron campus
access to the database
ECO-comparison Road Construction and Maintenance
Bend of the experimental track on the Nantes campus
Experimental track on the Nantes campus
- Wehner Schulze on the Nantes campus
- Roller bench on the Bron campus
- Instrumented vehicle
- Bend of the experimental track on the Nantes campus
- Experimental track on the Nantes campus
Created in 2010, the EASE laboratory has built its identity around an approach to assess the exposure of people (travelers, residents) and the natural environment (air, water, soil, flora, fauna) to the risks of accidents and pollution caused by road transport. This approach is based on an understanding of the phenomena that are at the origin of the risks and on reliable methodologies for collecting the data necessary for the analysis of the phenomena and their modeling.
The laboratory's research is grouped around three topics:
Tribology is the science that studies the phenomena that can occur between systems in contact. Applied to road transport, it is about understanding the mechanisms of friction, lubrication and wear at the tire / road interface. This understanding allows to model frictional forces from important factors such as the texture of the road surface, contact conditions and the characteristics of contaminants present at the tire / road interface. The wear studies aim in particular to provide knowledge on the formation of non-exhaust particles, which contribute to the pollution of the natural environment.
Research on the dynamics of pollutants aims to study their emission and follow their dispersion from the source - road transport - to the targets (organisms, natural environment). To identify the mechanisms of exhaust and non-exhaust emissions, the work aims to analyze emissions according to the physicochemical properties of the emitting components, vehicle dynamics and external conditions. Theoretical work, coupled with experiments, then aims to model the dispersion of the particles by considering their kinetics and their physicochemical transformations.
The diagnosis aim, through indicators and dedicated tools, to assess the effects of road transport on the natural environment and on humans. The work deals, on the one hand, with safety and exposure diagnosis for users and residents and, on the other hand, with quality diagnosis of natural environments. The knowledge acquired will be used to propose and test land use planning alternatives at the ecosystem level. They will also help to develop strategies or systems that help reduce pollutant emissions and limit their impact on the affected environments. It is also a matter of promoting, in the framework of often participatory research, solutions based on nature or at low cost that encourage the involvement of citizens and local authorities.
This research can make use of life cycle analysis (LCA) tools to measure the impact during the use phase of an infrastructure in terms, for example, of toxicity or particulate pollution.