Welcome on piarc.org!

PIARC (World Road Association), founded in 1909 and comprising 125 member governments from all over the world, is the global forum for exchange of knowledge and experience on roads, road transport policies and practices. With consultative status to the Economic and Social Council of the United Nations, the Association is contributing to a stable and sustainable global development of the road and transport sector.

This site uses cookies to optimize its operation. They allow you to securely access your personal space and download our publications. You accept their use by clicking on the "Accept" button.

Road tunnels: a guide to optimising the air quality impact upon the environment

Air quality has become a topic of concern in the planning, design and operation process of road tunnels.

This is a state-of-the-art report on the knowledge and regulations in the field of road traffic impact on air quality. It also provides a detailed description of air quality optimization at tunnel portals, pollution dispersion from air tunnels, chimneys and openings.

A diagnosis is made on the type and performance of the various measures and technologies to reduce the level of pollutant emissions in tunnels.

The report is complemented by nine case studies, a description of the health impact of the various air pollutants potentially present in the air and an introduction to dispersion models for the design of ventilation systems.

Information sheet

  • Date: 2008
  • Author(s): Comité technique 3.3 Exploitation des tunnels routiers / Technical Committee 3.3 Road Tunnel Operation
  • Domain(s): Environment / Road Tunnel Operations
  • PIARC Ref.: 2008R04EN
  • ISBN: 2-84060-204-0
  • Number of pages: 179