Ukraine is actively working on developing a security architecture to resume air traffic, with 60-70% of the work already completed, according to Oleksiy Dubrevsky, CEO of Boryspil International Airport. "...The creation of a fundamentally new security architecture aims to manage risks and reduce them to an acceptable level," Dubrevsky said during the Global Outlook: Enduring Change discussion organized by the European Business Association in Kyiv on Wednesday.