Investigation of Cost-Influencing Factors Potentially Controllable by Main Contractors in Construction Projects in Iraq

Abstract

Cost overrun in construction projects is a common phenomenon in Iraq. This might occur due to diversity of factors. This study aims to identify the factors influencing construction projects cost that are potentially controllable by main contractors. A field study through a questionnaire survey was directed to a sample of related Iraqi professional engineers from general contracting companies at both public and private sectors. Their opinions on the impact and frequency of each factor were investigated. The questionnaire offered (59) factors classified in (8) categories namely; legislations, financial and economic, design, contractual, site management, material, labor and equipment. The factors were ranked according to the highest Relative Importance Index (RII). The study revealed (10) major factors that are potentially controllable by main contractors namely; labor productivity, sub-contractors and suppliers performance, equipment productivity, site organization and distribution of equipment, experience and training of project managers, scheduling and control techniques, planning for materials supply, planning for equipment supply, materials delivery and planning for skilled labor recruitment. Recommendations to aid contractors and owners in early identification of these factors are also included in this study.

Developing a Model for Enhancing Cost Monitoring and Control in the Construction Firms

“…With maximum profit in mind, the contractor will have to turn to cost monitoring and control for assistance. Construction firms need to continuously improve their efficiency in cost control [30].…”

“…According to [33], project cost reports to be used for cost monitoring and control in the construction firms were investigated as shown in Figure 10. According to [34], Microsoft Excel is an important tool for control. Also, some methods of cost control were identified as the following:…”

Analyzing Cost Deviation Factors in Iraqi Construction Projects: A Comprehensive Examination of Influencing Variables

“…Authors in [1] concluded that cost deviation is caused by insufficient information, poor planning, unclear employer requirements, and change in orders during the implementation phase. Authors in [4] mentioned that the use of modern technologies and tools, the use of modern design programs, the establishment of solid rules, and the use of work-study techniques are factors that contracting companies should focus on. Authors in [5] found that the factors that influence cost are delays in payments from the client, the maturity period of the down payment, payment terms, down payment, project delay, poor planning, changes in orders, and inaccurate project duration.…”