Cristian is Principal Tunnel System engineer with Aurecon. He has over a 15yrs of experience in the design of tunnel ventilation and tunnel MEI systems; in particular, he is currently MEI Design Manager for the West Gate Tunnel and he is commissioning the City Rail Link Tunnel Ventilation in Auckland. In the past, he has worked on major tunnel infrastructure such as WestConnex M5, Inland Rail, Melbourne Metro in Australia, Crossrail and London Power Tunnel in the UK. He is leading the Tunnel System Group in the Australian Tunneling Society (ATS) to share knowledge across all parties involved, from contractors to operators, from designers to vendors