Study of Significant Factors Affecting Construction Productivity Using Relative Importance Index in Indian Construction Industry

Abstract

The construction industry of India is the second-largest contributor to the GDP and provides employment to a large population in the country. Its contribution to the GDP is about 8-10% on an average in the last decade. The objective of this study is to identify and analyze the significant factors affecting construction productivity using relative importance index method with a special focus on the Indian construction industry. A structured questionnaire survey method is used to collect the data from the primary stakeholders of the Indian construction industry including but not limited to consultants, architects, civil contractor, developer, PMC, and academia people. Total of 201 valid responses were received with a response rate of 32%. The value of reliability analysis is above 0.95, which is considered highly reliable for data-based studies. The findings of the study provide a ranking of factors affecting construction productivity. Most significant factors affecting construction productivity are availability of resources, contractual disputes, scope clarity of the project, design capability, and frequent design changes having the value on relative importance index scale 0.801, 0.799, 0.790, 0.785, and 0.776 respectively. This research paper concludes that the productivity can be achieved by changing the work culture and reviewing the management process for execution. Which suggests the implementation of best practices and motivation towards achieving the goal of having higher productivity by looking at the factor and analyzing how to promote productivity improvement.

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