FHWA Virtual Team on Road Tunnels
International Tunneling Association
World Road Association PIARC
Underground Construction Association of Society of Mining and Metallurgy, and Exploration
STUVA
Italian Tunneling Society
Prevention and Control of Highway Tunnel Fires
EPA Mobile Emission Modeling Resources
International Association for Fire Safety Science
Mr. Tunnel Link (Report on Mont Blanc Fire) (Original Link broken - substitute?)
Translation Engines for Web Research
Tunnel Management International (Original link broken - out of business?)
HVAC&R Information
ASHRAE Membership Info