STUDY OF PRODUCTION PLANNING IN LAST PLANNER SYSTEM (LPS) IMPLEMENTATION :CASE STUDY OF PROJECT X

• Main Author: Nadya Pramesti Dwi Putranti, Rr
• Format: Theses
• Language: Indonesia
• Subjects: Teknik sipil
• Online Access: https://digilib.itb.ac.id/gdl/view/80754
• Institution: Institut Teknologi Bandung

The implementation of the Last Planner System (LPS), specifically in production planning, has not been done optimally by several countries, including Indonesia. It is indicated by some previous studies that states the implementation of Lookahead Planning (LAP), Weekly Work Planning (WWP), and Learning is still partial, with some aspects are not being carried out due to various challenges that are faced by project team. However, LAP and WWP, as part of production planning, are the most crucial aspects of LPS. Therefore, this research is conducted to fill the gap by studying construction projects in Indonesia that are implementing LPS, specifically in production planning. The study consists of identifying the extent of production planning adoption by PT. A, identifying the extent of its implementation in a project construction, and identifying the challenges faced by project teams during production planning. Data for this research were collected through observations and interviews with those who directly involved in production planning, both at the company level (PT. A) and project team in construction site (Project X), to obtain a comparison of production planning between LPS theory, company adoption, and site implementation. Based on descriptive analysis, it was found that the adoption by PT. A has not fully complied with the existing of LPS theory, fulfilling only 4 out of 6 aspects. Meanwhile, the WWP and Learning stages have fulfilled all aspects of the theory. The implementation at Project X, as a benchmark project at PT. A, is still partial, with some aspects are not carried out. It is indicated by the LAP stage that is no longer being used, resulting in the process of explosion, constraint analysis, and make ready are not being carried out. Then, in the WWP stage, only 1 out of 4 aspects were implemented, and in the Learning stage, only 1 out of 3 aspects were implemented. Partial implementation was found in several projects both in Indonesia and abroad that have been implementing LPS for a longer time, where constraint analysis and make-ready processes are challenging to consistently implemented. Therefore, it can be said that the implementation of production planning, especially the LAP stage, still faces many challenges. The most identified challenges are from the users, it is project team's understanding of production planning concepts, which affects the implementation in the construction site. The approach that should be done in LPS implementation is not only focus on the implementation of its tools but also should doing the change management, including changes in working methods, mindset, behavior, and culture within the organization.