Constructability obstacles: an FCM-based dynamic modelling

doi:10.1680/jinam.23.00020

Constructability obstacles: an FCM-based dynamic modelling

2025-12-01

1

PRE

AI

S

Samereh Jadidoleslami

E

Ehsan Saghatforoush *

DOI：10.1680/jinam.23.00020

Original

Original request for help

Save

Abstract

En 中文

Construction projects often suffer cost/time overruns and reduced quality due to design-construction mismatches and lack of constructability. This dynamic process involves evolving variables requiring quantified, non-binary assessment to optimise buildability. This study identifies key obstacles to constructability implementation and models their interdependencies and impacts on project time, cost, and quality using fuzzy cognitive mapping (FCM). Based on literature, expert input, and an Iranian megaproject case study, a three-layer FCM with 28 obstacles, 10 consequences, and 3 failure modes was developed. Scenario analysis revealed critical barriers: viewing constructability as a cost rather than investment, contractors' unwillingness to engage in design, inflexible contracts, and limited contractor knowledge. Results enable targeted planning, early integration, and cultural shifts to reduce duplications, enhance effectiveness, and support constructability from initial design phases.

Keywords:

case study

constructability

constructability implementation

construction

construction management

FCM

fuzzy cognitive mapping

industry

innovation and infrastructure

obstacles

project management

sustainable cities and communities

UN SDG 9: Industry

UN SDG 11: Sustainable cities and communities

Constructability obstacles: an FCM-based dynamic modelling

Abstract

Journal

Organization