This study investigated the significant reasons for cost overruns in construction projects, the critical success factors, and various tools that are helping to avoid cost overruns. This study aims to determine the significant factors that make a project successful or fail. The factors that cause cost overrun and the tools that can be used in the cost overrun projects in Pakistan's construction industry so that future efforts can be directed to mitigate them. Numerous reasons for cost overruns in the global construction sector were realized after a comprehensive literature study. The top ten cost overrun variables identified were fluctuating raw material prices, expensive machinery, lowest bidder cost, poor project management, poor cost control, delays between design and procurement phases and inappropriate cost estimation methods. Questionnaire surveys, structure equation modelling, the Delphi method, regression-based model, statistical assessment, fuzzy-analytical network processing, fuzzy artificial neural network, and fuzzy simulation have been widely used and dominated the literature because they can quantify the intricacy and unpredictability of the cost overrun factors. A statistical method was determined to estimate the ranking of cost overrun factors. Therefore, the objective of the present literature study is to conduct a thorough analysis of the literature about the fundamental causes of cost overrun factors and various cost-controlling techniques used. This is done by focusing on articles published in highly reputable journals in the last decade.
Cost Overrun; Tools Assessment:Project Success: Management Factors, Construction Industry