Air quality

Transport infrastructures
Air & Health component of impact studies

We support project owners, engineering consultancies, and local authorities with the “Air & Health” components of impact assessments. Whether for road, rail, airport, port, or urban infrastructure, our multidisciplinary teams combine technical expertise with regulatory rigor to assess and reduce atmospheric impacts. Drawing on proven know-how in modelling, health risk assessment, mapping of sensitive areas, and the definition of operational mitigation measures, we deliver reliable, accessible results to de-risk your projects from the earliest stages and streamline decision-making.

REGULATORY SUPPORT

Anticipate the impacts of a transport infrastructure project on air quality and public health

When creating or modifying a road infrastructure (motorway, expressway, bypass, interchange…), an urban development (housing, retail, business zone…) or a transport infrastructure (air, rail, maritime), an “Air and Health” study may be required, whether regulatory or not.

We support project owners, engineering firms, local authorities, etc., in carrying out this technical component, which is generally an integral part of the project’s impact study file, with rigor and regulatory compliance.

Impact des infrastructures de transport sur la qualité de l’air – analyse santé

Our Air and Health services

Inventaires d’émissions et diagnostics air autour des transports

Air quality analysis

  • Collection of reference data (AASQA networks, measurement campaigns)
  • Mapping of sensitive areas: schools, hospitals, housing…
  • Measurement campaigns if necessary (mobile stations, passive tubes)
Modélisation de la qualité de l’air le long des axes routiers et ferroviaires

Atmospheric emissions modeling

  • Identification of project-related emission sources
  • Use of recognized dispersion models (ADMS, Code_Saturne…)
  • Concentration mapping, scenario comparisons
Évaluation d’exposition des populations et scénarios de réduction

Health impact assessment

  • Study of chronic or acute exposures
  • Risk analysis for sensitive populations
  • Interpretation according to current standards
  • Comparison of the project with the reference situation
Aide à la décision pour les projets d’infrastructures de transport

Proposed mitigation measures

  • Technical recommendations integrated into the design
  • Post-project monitoring and air and health surveillance plan

Air & Health

Projects concerned

Our Air & Health expertise applies to many types of projects:

- Road projects: extensions or requalifications of roads, creation of bypasses, diversions, engineering structures...
- Development zones: ZAC, mixed neighborhoods, housing
- Implementation of LEZ (Low Emission Zones)
- Public transport: BRT, tramway...
-Transport infrastructures: airport developments, rail projects, port projects
- Any project with logistical constraints and a local impact on transport

Visualisation cartographique des concentrations de polluants près des transports

Expertise & strengths

Méthodologie d’étude et paramètres de calcul

Studies

  • Multidisciplinary team: engineers specialized in air quality, atmospheric modeling and health impact
  • Perfect mastery of the regulatory framework and recommended methodologies (Environmental Code, INERIS guides, Air/Health circulars)
  • Ability to produce visual, clear and user-friendly deliverables for non-specialists
  • Experience in regulatory support and strategic assistance from the early project phase
  • Proven experience with public project owners, AMO, engineering firms, architects, urban planners
Outils et modèles de dispersion atmosphérique

Modeling

  • Expert engineers in modeling complex situations (valleys, urban environments, canyon effects, tunnel, bridge)
  • Selection of the most suitable dispersion model recognized by the authorities
  • Mastery of various French and European databases concerning 3D buildings, land use, etc.
  • Emission calculation using the most recent methods and data (Copert, HBEFA, …), including future projections of the vehicle fleet in France (CITEPA data, …).

They trust us:

F. A. Q

Do you have any questions?

FAQ transports et qualité de l’air – questions fréquentes
Because transport and urban developments generating traffic produce pollutant emissions that can affect public health and the environment. Assessment helps anticipate these impacts and define suitable mitigation measures. Scenario studies are a decision-making tool for urban planning or environmental plans.
All projects likely to modify traffic conditions or land-use planning: highways, expressways, interchanges, tramways, BRT systems, stations, airports, ports, business parks, mixed-use neighborhoods, activity zones…
We use atmospheric modeling software (ADMS range, or 3D tools), health risk assessments (HRA), mapping of sensitive areas, and evolution scenarios. These approaches rely on robust scientific data and comply with regulatory requirements.
They provide a clear view of impacts, facilitate dialogue with stakeholders, and ensure regulatory compliance, thereby reducing the risk of delays or disputes.

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