TY  - CONF
TI  - Uncovering and Visualizing Work Process Interruptions Through Quantitative Workflow Analysis 
C1  - Edmonton, Canada
C3  - Proc. 30th Annual Conference of the International Group for Lean Construction (IGLC)
SP  - 142
EP  - 152
PY  - 2022
DO  - 10.24928/2022/0116
AU  - Görsch, Christopher
AU  - Al Barazi, Alaa
AU  - Seppänen, Olli
AU  -  Abou Ibrahim, Hisham
AD  - Doctoral Candidate, Department of Civil Engineering, Aalto University, Espoo, Finland,  christopher.0.gorsch@aalto.fi, https://orcid.org/0000-0001-9632-4031
AD  - Doctoral Candidate, Department of Civil Engineering, Aalto University, Espoo, Finland,  alaa.albarazi@aalto.fi, https://orcid.org/0000-0001-7241-9597
AD  - Associate Professor, Department of Civil Engineering, Aalto University, Espoo, Finland, olli.seppanen@aalto.fi, http://orcid.org/0000-0002-2008-5924
AD  - 4 Postdoctoral Researcher, Department of Civil Engineering, Aalto University, Espoo, Finland,  hisham.abouibrahim@aalto.fi, https://orcid.org/0000-0003-4261-9322 
AB  - Continuous improvement requires visualizing process constraints which interrupt workflows. Production control from a management perspective often operates at lower levels of information granularity than required at operational levels to perform work without interruptions. If not controlled in detail, causes and effects of workflow interruptions remain unclear in environments of high complexity and non-standardized work. Workflow efficiency has been studied through work sampling or time-motion studies, estimating shares of direct work. However, few studies exist that show how to create digital representations of workflows and analyse them for interruptions, contributing to smoother workflows. The paper examines workflows of plumbing work from video footage. This video data is classified and analysed for frequency, causes, and effects of work interruptions. Results indicate that value-supporting activities caused the largest proportion of interruptions. Moreover, the proportion of non-value-adding activities increases when durations of interruptions rise. Based on the results, the paper contributes to further understanding of workflow interruptions in plumbing work. Finally, it provides suggestions on how to close gaps of information granularity between management and operational levels, through the development of simulation models and the application of automated data collection, contributing to developing digital twins of construction processes.
KW  - continuous improvement/kaizen
KW  - production control
KW  - job-sequencing
KW  - time-motion study
KW  - workflow
PB  - 
T2  - Proc. 30th Annual Conference of the International Group for Lean Construction (IGLC)
DA  - 2022/07/27
CY  - Edmonton, Canada
L1  - http://iglc.net/Papers/Details/1952/pdf
L2  - http://iglc.net/Papers/Details/1952
N1  - Export Date: 02 May 2024
DB  - IGLC.net
DP  - IGLC
LA  - English
ER  -