TY  - CONF
TI  - Improving Productivity in Ventilation and Plumbing Installations by Developing Designs
C1  - Lille, France
C3  - Proceedings of the 31st Annual Conference of the International Group for Lean Construction (IGLC31)
SP  - 1061
EP  - 1071
PY  - 2023
DO  - 10.24928/2023/0151
AU  - Valkonen, Tuomas
AU  - Seppänen, Olli
AD  - Doctoral Candidate, Department of Civil Engineering, Aalto University, Espoo, Finland,  tuomas.valkonen@aalto.fi, https://orcid.org/0000-0002-2710-5190
AD  - Associate Professor, Department of Civil Engineering, Aalto University, Espoo, Finland, olli.seppanen@aalto.fi,  http://orcid.org/0000-0002-2008-5924 
AB  - Quality of designs is one of the most important factors impacting the productivity of mechanical, electrical, and plumbing work. Previous research does not investigate problems with design in detail. This research aimed to identify design aspects where additional investments in design would increase productivity in installation. For this purpose, we selected three construction sites to identify deviations from designs, and interview installers on identified deviations and buildability in general. Observed deviations were divided into three main categories based on the cause of deviation: insufficient space reservations, missing model components, and buildability. Based on our findings we suggest five methods for developing designing: 1. BIM should be used in designing. 2. BIM coordination should include the assessment of buildability. 3. Better use of BIM requires high level of detail and high accuracy in all design models. 4. Contractors knowledge on buildability, schedule, and order of installation should be utilized in designing. 5. Optimizing material cost should be part of designing. 
KW  - BIM
KW  - collaboration
KW  - assembly
KW  - HVAC
KW  - design
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/2090/pdf
L2  - http://iglc.net/Papers/Details/2090
N1  - Export Date: 24 April 2025
DB  - IGLC.net
DP  - IGLC
LA  - English
ER  -