34th Annual Conference of the International Group for Lean Construction (IGLC 34) - Singapore, Singapore - 2026

https://doi.org/10.24928/2026/0184

Industrialized Construction Index (ICI): a project indicator for industrialization assessment.

Daniel F. Sanchez R.1 & Emna Attouri2

1Innovation Project Manager, Bouygues Construction, Paris, France, [email protected], orcid.org/0009-0009-0820-1062
2Market Innovation Developer, Aperam Stainless Europe, Lille, France; [email protected], orcid.org/0000-0002-5563-6431

Abstract

Industrialized Construction represents a fundamental paradigm shift toward a product-based approach to address chronic productivity and quality issues in the sector. However, the lack of a standardized, scientifically rigorous metric to quantify industrialization maturity hinders strategic goal-setting and cross-project benchmarking. This paper presents and validates the Industrialized Construction Index (ICI), a quantitative framework measuring maturity across five pillars: Standardization, Prefabrication, Modularization, Automation, and Digitalization. Utilizing a multi-case study approach, the ICI was deployed across 61 residential projects in Colombia and 33 projects in France. Findings demonstrate the indicator's sensitivity to diverse market realities, revealing a 33% industrialization maturity in the Colombian market-driven primarily by design standardization, while French projects exhibited higher variability through advanced off-site solutions like volumetric modules and timber-frame facades. The research confirms the ICI as a robust, cross-border assessment tool that allows construction companies to move beyond subjective classifications toward verifiable metrics, facilitating the correlation between industrialization levels and global project performance.

Keywords

Industrialization, prefabrication, standardization, modularity, automation, digitalization.

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Reference in APA 7th edition format:

R., D. F. S. & Attouri, E.. (2026). Industrialized Construction Index (ICI): a project indicator for industrialization assessment.. In Hamzeh, F., Poshdar, M., & Garcia-Lopez,, N. P. (Eds.), Proceedings of the 34th Annual Conference of the International Group for Lean Construction (IGLC 34) (pp. 739–750). https://doi.org/10.24928/2026/0184

Shortened reference for use in IGLC papers:

R., D. F. S. & Attouri, E.. (2026). Industrialized Construction Index (ICI): a project indicator for industrialization assessment.. IGLC34. https://doi.org/10.24928/2026/0184

 

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