Cost and Time Performance Analysis of Design-Bid-Build vs. Design-Build Construction Projects

Project Abstract

This research study investigates the cost and time performance differences between the traditional Design-Bid-Build (DBB) and the alternative Design-Build (DB) construction project delivery methods. The construction industry is constantly evolving, and different project delivery methods have been introduced to improve efficiency and effectiveness. Understanding the implications of choosing between DBB and DB methods is crucial for project stakeholders to make informed decisions that can impact project success. The research aims to provide insights into the performance variations in terms of cost and time between DBB and DB projects by analyzing a sample of completed construction projects. The research methodology involves a comparative analysis of cost and time performance data from both DBB and DB projects. A sample of construction projects using each delivery method will be selected, and relevant project data will be collected and analyzed. The analysis will focus on key performance indicators such as project cost, project duration, change orders, quality, and client satisfaction. The findings of the study will provide valuable information on the advantages and disadvantages of each project delivery method, helping stakeholders make informed decisions based on empirical evidence. Chapter one introduces the research topic, provides the background of the study, states the problem statement, outlines the objectives of the study, discusses the limitations and scope of the study, highlights the significance of the research, presents the structure of the research, and defines key terms related to the topic. Chapter two consists of a comprehensive literature review that explores existing research, theories, and studies related to project delivery methods, cost and time performance in construction projects, and the comparison between DBB and DB methods. The literature review aims to establish a theoretical framework for the research study. Chapter three details the research methodology, including research design, data collection methods, sample selection criteria, data analysis techniques, and ethical considerations. The chapter outlines the step-by-step approach taken to analyze the cost and time performance data of DBB and DB projects. Chapter four presents a detailed discussion of the research findings, highlighting the similarities and differences in cost and time performance between the two project delivery methods. The chapter also explores the factors influencing project performance and discusses the implications of the findings on project stakeholders. Chapter five concludes the research study by summarizing the key findings, implications, and recommendations for future research and practice. The conclusion reflects on the research objectives and highlights the significance of the study in contributing to the body of knowledge in construction project management. Overall, this research aims to provide valuable insights into the cost and time performance analysis of DBB vs. DB construction projects, offering practical recommendations for project stakeholders to enhance project success and efficiency in the construction industry.

Project Overview