Study on the Factors Causing Rework of Building Construction in Kerala using Interpretive Structural Modelling (ISM)
The construction industry is one of India's most important and fastest-growing sectors. However, the construction industry is plagued with problems of cost and time overruns. Rework is one of the major causes of cost overrun and time overrun in the construction industry. This study investigates the factors causing the rework of building construction in Kerala. To compile a list of the factors that lead to rework, a thorough analysis of the literature was done. A questionnaire survey was conducted to collect the opinions from contractors, engineers, and design consultants and the factors were ranked using the relative importance index (RII). Lack of project funding, poor monitoring and control, and poor communication or coordination among stakeholders were identified as the significant causes of rework in building construction in Kerala. In order to establish an interrelationship between the top fourteen critical factors influencing rework, Interpretive Structural Modeling (ISM) method was used. Based on the ISM, a hierarchical structure was created, and it was found that the client's ignorance of the planning and construction processes was the primary cause of the rework in building construction. Matrice d’ Impacts Croise’s Multiplication Appliquee a Classement (MICMAC) analysis was done to classify the factors based on driving and dependence power and those factors with high driving power have to be given attention to control the rework of building construction in Kerala. The significance of each critical cause and its interrelationships can create a better awareness among the stakeholders involved and thereby reduce the extent of rework in building construction.
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