TY  - CONF
TI  - Planned Percentage Completed in Construction – a Quantitative Review of Literature
C1  - Lille, France
C3  - Proceedings of the 31st Annual Conference of the International Group for Lean Construction (IGLC31)
SP  - 1104
EP  - 1115
PY  - 2023
DO  - 10.24928/2023/0104
AU  - Lappalainen, Eelon
AU  - Reinbold, Ana
AU  - Seppänen, Olli
AD  - Doctoral Candidate, Department of Civil Engineering, Aalto University, Finland, eelon.lappalainen@aalto.fi,  orcid.org/0000-0002-7573-344X
AD  - Doctoral Candidate, Department of Civil Engineering, Aalto University, Finland, ana.reinbold@aalto.fi,  orcid.org/0000-0002-7774-7984 
AD  - Associate Professor, Department of Civil Engineering, Aalto University, Finland, olli.seppanen@aalto.fi,  orcid.org/0000-0002-2008-5924  
AB  - Although several systematic literature reviews have focused on the Last Planner® system (LPS) and lean construction, few reviews have focused solely on the planned percentage completed (PPC) value. In this light, the present quantitative literature review aims to synthesize individual PPC-related studies from around the world. The research data consisted of 36 peer-reviewed research articles and conference papers published between 1998 and 2021; in these, PPC values were presented such that they could be collected and analyzed quantitatively. As a main finding, a statistically significant difference was observed between the mean PPC values presented in studies published in lean-focused journals and other peer-reviewed journals. The mean PPC values published in lean-focused journals were lower than those published in other peer-reviewed journals. This may indicate that results with higher PPCs are selected for other peer-reviewed publications; therefore, a potential publication bias should be investigated further. The study also revealed mean PPC values over time and geography, thereby enabling an evaluation of the construction industry’s global progress by using PPC values as a benchmark. 
KW  - lean construction
KW  - last planner
KW  - planned percentage completed (PPC)
KW  - literature review.
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/2048/pdf
L2  - http://iglc.net/Papers/Details/2048
N1  - Export Date: 03 April 2025
DB  - IGLC.net
DP  - IGLC
LA  - English
ER  -