Earned Value Analysis Reveals Cost Efficiency in North Minahasa Government Library Construction

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A performance evaluation of the North Minahasa Regency Government Library Building has found that the construction project achieved strong cost efficiency after its initial implementation phase, although schedule performance remained slightly behind the original plan. The study was conducted by researchers from Politeknik Negeri Manado and published in 2026 in the Jurnal Multidisiplin Madani (MUDIMA). By applying the Earned Value Management (EVM) method, the researchers demonstrated how project managers can monitor construction costs and work progress simultaneously, providing practical insights for improving public infrastructure management in Indonesia.

As Indonesia continues to invest in public infrastructure, effective project management has become increasingly important. Government-funded construction projects are expected not only to meet quality standards but also to stay within budget and finish on schedule. Delays and cost overruns can reduce public confidence, increase financial burdens, and postpone the delivery of essential public services.

One of the most widely used tools for monitoring construction performance is Earned Value Management (EVM). Unlike traditional project monitoring, which often examines cost and schedule separately, EVM combines both indicators into a single performance measurement system. This approach enables project managers to detect problems early, evaluate project efficiency, and make corrective decisions before delays or budget overruns become more severe.

To demonstrate the practical application of this method, the researchers evaluated the construction of the North Minahasa Regency Government Library Building. The project represents an important public investment designed to improve educational resources and community access to information. Because public construction projects involve significant government funding, continuous monitoring of cost efficiency and work progress is essential to ensure accountability and successful project delivery.

The research adopted a quantitative case study approach using project management data collected throughout the construction period. Rather than conducting laboratory experiments, the researchers analyzed project planning documents, construction schedules, Bills of Quantities (BoQ), budget reports, and weekly progress records. These data were processed using the Earned Value Management framework.

Three principal performance indicators formed the basis of the evaluation:

  • Budgeted Cost of Work Scheduled (BCWS), representing the planned value of work according to the project schedule.
  • Budgeted Cost of Work Performed (BCWP), representing the value of work actually completed.
  • Actual Cost of Work Performed (ACWP), representing the actual expenditure incurred during project implementation.

Using these indicators, the researchers calculated project performance week by week throughout the 32-week construction schedule. They also performed Cost Variance (CV) analysis to determine whether the project was spending more or less than planned at each stage of construction.

The financial evaluation began with a detailed estimate of the total construction budget. The analysis calculated a total project cost of approximately Rp8.54 billion, increasing to Rp9.47 billion after the addition of 11 percent tax. The budget covered seventeen major work packages, including site preparation, foundations, reinforced concrete construction, roofing, architectural finishing, plumbing, mechanical and electrical systems, and final completion works.

The week-by-week Earned Value calculations revealed distinct phases of project performance.

During the first five weeks, actual physical progress remained below the planned schedule. This is common in construction projects because early activities—including mobilization, site preparation, procurement, coordination, and administrative work—consume significant resources before producing measurable construction output. As a result, the value of completed work (BCWP) remained lower than the planned value (BCWS), while actual expenditures had already begun to accumulate.

From approximately Week 6 onward, project performance improved considerably. Construction productivity increased as major structural work progressed, labor utilization became more efficient, and material supply stabilized. The value of completed work rose steadily throughout the middle stages of construction, indicating stronger project execution and improved field coordination.

Several important findings emerged from the Earned Value analysis:

  • The total project budget reached approximately Rp9.47 billion, including applicable taxes.
  • Weekly monitoring covered the entire 32-week implementation period, allowing continuous measurement of project performance.
  • Physical progress accelerated significantly after the initial mobilization stage.
  • By the end of the observation period, the project achieved a BCWP of Rp9.30 billion, compared with a planned BCWS of Rp9.47 billion, indicating that construction progress was only slightly behind schedule.
  • Actual project expenditures remained substantially below the planned budget during much of the implementation period, suggesting effective cost control.

The Cost Variance analysis provided additional insight into project efficiency. During the first five weeks, Cost Variance values were negative because the project incurred relatively high initial expenditures while physical progress remained limited. However, beginning in Week 6, Cost Variance became consistently positive and remained positive until the end of the monitoring period. This indicates that the value of completed work exceeded the actual costs incurred, reflecting increasingly efficient resource utilization throughout the remainder of the project.

The findings demonstrate that Earned Value Management (EVM) is more than a financial reporting technique. When applied consistently throughout a construction project, it becomes an effective management tool for identifying cost trends, monitoring schedule performance, and supporting timely decision-making. For public infrastructure projects, where accountability and budget transparency are essential, this approach allows project managers to recognize potential problems before they develop into significant delays or financial losses.

The researchers observed that although the project displayed strong cost efficiency after the initial implementation stage, schedule performance still required attention. At the conclusion of the monitoring period, the Budgeted Cost of Work Performed (BCWP) remained slightly below the Budgeted Cost of Work Scheduled (BCWS). This difference indicates that while construction costs were well controlled, a small portion of the planned work had not yet been completed according to the original schedule. Consequently, project managers should prioritize the remaining critical activities to avoid delays in project handover and administrative completion.

Another important contribution of the study is its explanation of why project performance changed over time. During the first five weeks, the project recorded negative Cost Variance (CV) values because actual expenditures exceeded the earned value of completed work. According to the researchers, this situation resulted primarily from unavoidable early-stage expenses, including mobilization, site preparation, temporary facilities, procurement activities, labor preparation, and indirect project costs. Although these expenditures were necessary, they generated limited measurable construction progress during the project's initial phase.

After the mobilization stage, project performance improved considerably. From Week 6 through Week 32, Cost Variance remained positive, indicating that the value of completed work consistently exceeded the actual costs incurred. The researchers attribute this improvement to better workforce productivity, more efficient equipment utilization, improved sequencing of construction activities, stronger material management, and more effective coordination among project teams. These factors enabled the project to complete work more efficiently while maintaining lower-than-budgeted expenditures.

However, the researchers caution that a positive Cost Variance should not automatically be interpreted as evidence of higher profits or the complete absence of financial risks. Actual project expenditures may still be affected by delayed supplier invoices, outstanding subcontractor payments, pending procurement transactions, or administrative recording delays. Therefore, Earned Value results should always be verified using project cash-flow records, payment documentation, procurement reports, and financial statements before drawing final conclusions regarding project profitability or financial performance.

The study has several practical implications for Indonesia's construction sector.

For government agencies, the findings support wider adoption of Earned Value Management as a standard monitoring tool for publicly funded infrastructure projects. Continuous performance evaluation can strengthen transparency, improve budget accountability, and reduce the likelihood of costly project delays.

For construction companies, the research demonstrates the importance of integrating cost monitoring with schedule management rather than evaluating each independently. Combining these indicators enables managers to respond more quickly when deviations occur.

For project managers, the study highlights the value of conducting regular weekly performance evaluations throughout project implementation. Early detection of declining productivity or rising expenditures allows corrective measures to be implemented before problems become more difficult and expensive to resolve.

For researchers and engineering educators, the project provides a practical case study demonstrating how Earned Value Management can be applied to real public infrastructure projects in Indonesia, offering valuable learning material for future civil engineers and construction management professionals.

According to the researchers from Politeknik Negeri Manado, the Earned Value analysis indicates that the North Minahasa Government Library Building project achieved favorable cost performance after the initial construction phase. Nevertheless, they emphasize that maintaining schedule performance remains equally important. They recommend accelerating the remaining work, improving coordination among construction teams, ensuring timely material deliveries, and closely monitoring critical construction activities that could influence project completion. The researchers conclude that Earned Value Management serves not only as a tool for measuring cost efficiency but also as an early warning system that supports better managerial decision-making throughout the entire project lifecycle.

Overall, the research demonstrates that successful infrastructure delivery depends on balancing both financial efficiency and timely execution. By integrating cost and schedule monitoring into a single management framework, Earned Value Management provides project stakeholders with clearer insight into project performance and contributes to more effective management of public construction projects across Indonesia.

Author Profile

The research was conducted by a team of researchers from Politeknik Negeri Manado specializing in civil engineering, construction management, project cost control, and infrastructure development. Their work focuses on improving the efficiency and accountability of construction project management through the application of quantitative performance evaluation methods, including Earned Value Management.


Source

Article Title: Earned Value Management Analysis of the North Minahasa Regency Government Library Building Construction Project

Journal: Jurnal Multidisiplin Madani (MUDIMA)

Publication Year: 2026

Volume & Pages: Vol. 6, No. 6, June 2026, pp. 741–754

 


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