Critical Success Factors Framework of Value Management for Design and Build Infrastructure Projects

The Design Build (DB) approach is gaining popularity in many countries as it allows a single entity to handle both design and construction, making it a preferred choice for infrastructure projects. With the design process carried out by a team to achieve design constructability, implementing Value Management (VM) in Design Build projects is advantageous and can lead to cost-effective designs. While most studies have concentrated on identifying the important criteria that lead to the effective deployment of VM in infrastructure projects in general, the success factors of VM in DB delivery systems remain unknown. This study aims to identify the critical success factors (CSFs) in the three main stages of the VM workshop and their supporting factors in infrastructure projects delivered under DB system. To achieve the research aim, a questionnaire was distributed to DB contractors involved in infrastructure projects in Indonesia. The Relative Important Index approach was applied to 28 factors, and the analysis revealed the CSFs for each stage of the VM workshop, along with a critical supporting factor. The analysis revealed that there are three CSFs for the pre-study and study stages and one for the post-study stage. The identified CSFs provide a framework for VM success in Design Build projects. The three CSFs in the pre-study stage relate to VM objectives, project information completeness, and personnel involved in the VM workshop. At the study stage, VM success depends on the VM process, the development of alternative designs, and the VM team's innovation. In the post-study stage, VM success is linked to the VM implementation process and developing an execution plan. The cooperation of all stakeholders in implementing the VM workshop results is a critical supporting factor for VM in a DB project.