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All Journal Jurnal Pensil : Pendidikan Teknik Sipil
Darmawan, Rian
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Civil Engineering, Building, Construction & Architecture Education Other

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IMPROVING THE QUALITY OF WORK ON CULVERT UNDERPASS BOX STRUCTURES USING THE LEAN SIX SIGMA METHOD Darmawan, Rian; Susetyo, Budi
Jurnal Pensil : Pendidikan Teknik Sipil Vol. 14 No. 1 (2025): Jurnal Pensil : Pendidikan Teknik Sipil
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jpensil.v14i1.45230

Abstract

Underpass is an infrastructure built by the government below the ground level to alleviate traffic congestion in large cities. The box culvert system serves as the construction for underpasses. The selection of this system has a significant impact on quality as it will affect the quality of work. The BSD underpass project on the Serpong - Balaraja toll road (Interchance Legok Area STA 9+800) needs to improve its quality because the results of the work do not meet the required standards. The aim of this research is to determine the most influential factors in the quality of underpasses and the implementation of lean six sigma. The research utilizes the Relative Importance Index (RII) method and the Lean Six Sigma method. From the research results, it was found that the most influential factor is ensuring that every incoming material meets the desired quality standards in the quality control variable. In addition, the analysis using Lean Six Sigma in Box Culvert work resulted in a DPMO value of 6058 per one million or equivalent to 4.133 sigma with a yield of 99.39%, thus requiring evaluation through the the DMAIC method Define – Measure – Analyze – Improvement – Control) to reduce defects and improve quality.
Co-Authors Budi Susetyo