Cost Analysis of Clean Water Distribution Pipe Variants Using Value Engineering Method in Rungkut Industrial Area, Surabaya

Abstract

This study analyzes the cost and time efficiency of the clean water distribution system in the Rungkut industrial area, Surabaya, by applying the Value Engineering (VE) method. The main objective of this study is to evaluate and compare the performance of three types of commonly used pipes, namely HDPE (High Density Polyethylene), uPVC (unplasticized Polyvinyl Chloride), and GI (Galvanized Iron), in order to determine the most optimal alternative without reducing the function or quality of the clean water distribution system.  Data collection was carried out through a combination of methods, namely distributing questionnaires to professional respondents in the fields of civil engineering and water installations, direct interviews with parties related to the project, and analysis of technical documents and costs from actual projects. The data obtained were analyzed using the Relative Importance Index (RII) method to assess several important aspects, such as cost efficiency, ease of installation, and material durability. In addition, a comparison of the implementation time for each type of pipe was also carried out.  The results of the study showed that HDPE pipes have better cost and time efficiency than other pipes. The cost difference between HDPE and uPVC pipes is Rp 1,407,577, while with GI pipes it is Rp 731,885.