February 15, 2012 Assessing the risk of tunnels inn urban areas A new technique for assessing the impacts of tunnels on nearby buildings and structures will allow a more realistic establishment of risk and could therefore reduce project insurance premiums
February 15, 2012 Tunnel ventilation systems provide fresh air Elta Fans supplied specialist ventilation fans for the A3 Hindhead Tunnel in Surrey, UK which opened in July this year.
