The government body, NAACC (National Agency of Administrative City Construction), is promoting national strategies development based on a new balanced development paradigm for national integration and national economic leaps. In order to effectively construct a complex city where various entities participate and a number of facilities are built, program management is applied from start of construction.

In this study, it is introduced the techniques of program management that systematically and effectively controlled the administrative city construction as a control tower. The Saemangeum Development and Investment Agency (SDIA) is in charge of the entire project for successful completion.

SDIA needs advanced Saemangeum program management to address complex issues such as lack of clear scope and timing of termination, high dependence on private investment, frequent policy changes, and confrontation among many stakeholders. In this study, it is to introduce the establishment of procedures, time and cost management, efforts for megaproject developing a program management information system, and the direction of K-SPM development.

This paper illustrates the importance for performance assessment by applying the AHP technique which can obtain objective and systematic results for identifying common points and derived factors. The results of this study are expected to improve the efficient use of budget resources and increase public convenience when applied to megaprojects in Korea, such as the New Airports, Saemangeum reclamation which is currently in its early stages.

Change orders are commonly used in public projects to address unexpected field conditions or inadequate initial planning and lack of preliminary investigation, etc. The five factors contributing to the change orders were: a change in scope of work, a reflection of site conditions, a change in plans, interference with other construction, and construction suspensions.

This study offers valuable insights into the key factors contributing to design changes in public works. It can be used to proactively manage future projects, reducing the frequency of design changes and associated costs.

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