All papers published in this volume have been reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing Publishing.• Type of peer review: Single Anonymous• Conference submission management system: Morressier• Number of submissions received: 32• Number of submissions sent for review: 32• Number of submissions accepted: 29• Acceptance Rate (Submissions Accepted / Submissions Received × 100): 90.6• Average number of reviews per paper: 1• Total number of reviewers involved: 23• Contact person for queries:Name: Assoc. Prof. Tony VenelinovEmail: tvenelinov_fhe@uacg.bgAffiliation: University of Architecture, Civil engineering and Geodesy, Sofia, Bulgaria