TY  - CONF
TI  - Safety-I and Safety-II: Contributions of Uas Safety Monitoring on Construction Sites
C1  - Lille, France
C3  - Proceedings of the 31st Annual Conference of the International Group for Lean Construction (IGLC31)
SP  - 377
EP  - 386
PY  - 2023
DO  - 10.24928/2023/0141
AU  - Melo, Roseneia Rodrigues Santos de
AU  - Costa, Dayana Bastos
AD  -  Postdoctoral Researcher, Department of Structural and Construction Engineering, School of Engineering,  Federal University of Bahia, Brazil, roseneia.engcivil@gmail.com orcid.org/0000-0001-9171-7274
AD  - Associate Professor, Department of Structural and Construction Engineering, School of Engineering, Federal  University of Bahia, Brazil, dayanabcosta@ufba.br. orcid.org/0000-0002-1457-6401 
AB  - Unmanned Aerial Systems (UASs) have been incorporated into safety management systems to facilitate hazard identification and propose corrective actions on time, meaning practices related to the Safety-I approach. However, its impacts on understanding and dealing with everyday operations in front of adverse conditions, meaning Safety-II practices, are still unknown. Thus, this study investigates the contribution of safety monitoring using UAS to support Safety-I and Safety-II practices in everyday operations. Two case studies in construction projects were conducted, involving the following steps: (a) proposition of UAS monitoring protocol integrated into safety management routines; (b) field tests to monitor safety performance using UASs; (c) data analysis considering Safety-I, Safety-II and Resilience Engineering. As a main result, resilience mechanisms were identified, such as adaptation in the lifeline safety systems, use of photos and videos to improve workers’ awareness, and collaborative work between frontline workers. Regarding the Safety-I approach, most of the identified non-conformities were classified as precarious structures on the construction sites, failures in the Personal Protection Equipment (PPE) use, and safety barriers. The perceived limitations emphasized the difficulty in promoting corrective actions due to the lack of flexibility in the constructive processes, availability of resources timely, and absence of slack.
KW  - Construction sites
KW  - safety management
KW  - resilience engineering
KW  - and digital technologies.
PB  - 
T2  - Proceedings of the 31st Annual Conference of the International Group for Lean Construction (IGLC31)
DA  - 2023/06/26
CY  - Lille, France
L1  - http://iglc.net/Papers/Details/2081/pdf
L2  - http://iglc.net/Papers/Details/2081
N1  - Export Date: 03 April 2025
DB  - IGLC.net
DP  - IGLC
LA  - English
ER  -