Cost and Time Analysis on the Preservation of Roads and Bridges in Bulu Regency Sukoharjo Regency Boundary Central Java Province – Tuban City Boundary East Java Province

Abstract

The complexity of construction project implementation often results in time and cost inefficiencies, particularly in large-scale infrastructure developments. This study analyzes the cost and time performance of the Jalan and Jembatan Preservation Project in the Bulu Section, spanning from the Sukoharjo Regency boundary in Central Java Province to the Tuban City boundary in East Java Province. Using a descriptive quantitative method with a case study approach, the research applies Earned Value Management (EVM) methodology. Data were collected through field observations, project documentation (weekly progress/cost reports), and interviews with project personnel. Key EVM indicators—BCWS, BCWP, and ACWP—were used to evaluate performance, alongside metrics including Cost Variance (CV), Cost Performance Index (CPI), Schedule Variance (SV), and Schedule Performance Index (SPI). Findings indicate CV < 0 and CPI < 1, demonstrating actual costs exceeded the planned budget, while SV < 0 and SPI < 1 confirm project delays. The project is projected to incur a financial loss of approximately IDR 1.52 billion and a 25-calendar-day delay beyond the 285-day contractual schedule. These results underscore the need for enhanced project controls to mitigate inefficiencies. The study validates EVM’s utility for early deviation detection in pavement preservation and provides strategic insights for optimizing future infrastructure asset management.