2019 CSCE Annual Conference - Laval (Greater Montreal)

2019 CSCE Annual Conference - Laval (Greater Montreal) Conference

A System Dynamics model of client linked delay in construction of building projects in India

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Dr. Dillip Das, Central University of Technology, Free State (Presenter)

Clients are among the major stakeholders in construction projects and therefore play crucial roles in the completion of the projects.  However, it is also argued that client induced factors contribute to cause delay in construction projects in India. Therefore, the objectives of the investigation are to identify the influential client related variables, which cause delay; to evolve the causal feedback relations among the most influential client linked variables and delay; and to develop a System Dynamics (SD) model to examine the scenarios of delay under varied strategic conditions. For this purpose, a questionnaire survey was conducted among 120 willing stakeholders and professionals that include clients, contractors, project managers, consultants, designers, engineers, supervisors, suppliers, skilled construction labours etc., from various building projects in the Odisha state in India using random sampling process. Followed by a SD model was developed by using data from medium sized building projects from Odisha State in India to simulate and examine the behaviour of the project schedule and delay under different simulated scenarios, and estimate the reduction of delay under different policy interventions based on the dynamic hypotheses framed. Findings suggest that delay in progress of payments by owner, slowness in decision making process by owner, change orders by owner during construction, poor communication and coordination by owner and other parties, late in revising and approving the design documents by owner, delay in approving shop drawings and sample materials by the owner, and delay to furnish and deliver the site to the contractor by the owner are the major client/owner related factors, which cause delay. However, the modelling effort revealed that timely decision making which can be augmented by the availability of requisite information, and effective communication conjoined with the availability of fund and adequate budget allocation can ensure timely progress in payment that essentially shall able to reduce construction delay significantly. The contributions of the investigation are (1) it could assist the project stakeholders particularly the clients, contractors and project managers to diagnose the client linked challenges through the mechanisms that are created by the causal feedback relations; and (2) it also could enable the stakeholders to foresee the impacts of different causal feedback relationships and policy interventions on the reduction of delay quantitatively based on which appropriate actions to resolve the challenges of delay in construction projects in India can be taken.   

Keywords:Client; Communication; Construction; Fund; System Dynamics modelling