Rune Brandt has a PhD in fluid mechanics from the University of Cambridge and has been head of HBI Haerter since 2001. As a consultant, he has been involved in the design and assessment of safety concepts for 100 road tunnels worldwide. With more than 20 years of experience in fluid mechanics, tunnel ventilation, tunnel risk and safety, and as project manager of research projects on risk analysis, tunnel egress and optimised ventilation control, he is a leading expert in tunnel safety issues.