This paper  reviews  the  design  of  the  ventilation  and  risk  control  systems  undertaken  by  the  successful Daewoo  Consortium,  starting  from  the  definition  of  the  relevant  design  criteria  for  both  normal  and emergency  operation,  and  ending  with  detailed  specifications  for  the  civil  and  mechanical  components, including a rescue station and three air exchangers for the purging of diesel emissions.