Analysis of Effective Scheduling and Financing Embung Sawah Lului Boncah Godang Construction Project

Abstract

The construction project of the Embung Sawah Lului Boncah Godang realization of the implementation of 189 calendar days. For the effectiveness of scheduling the implementation of this work, it is necessary to conduct a study with the scheduling method. The objective is to review project scheduling using the Precedence Diagram Method (PDM) and Critical Path Method (CPM) methods as well as technical analysis of the duration of work items using the 2022 Work Unit Price Analysis (AHSP) and work acceleration using the Overlapping method. An analysis of financing flows was carried out from the results of the scheduling method with the payment system. Work Breakdown Structure (WBS) planning is based on interviews with Service Providers and job productivity is obtained for each duration of the work item. Furthermore, a dependency analysis of WBS was carried out using PDM and CPM methods using the Microsoft Project 2019 application. In the CPM method, one condition is used, namely Finish to Start (FS), which cannot overlap work. The PDM method uses 4 countermeasures, namely FS, SS, SF and FF, then the analysis begins with determining the Predecessor with work items that can overlap. The results of the analysis obtained are Gantt charts and Network Diagrams along with critical trajectories. The duration of the actual PDM method work was obtained 189 days, the modified PDM method with the overlap of the predecessor scheduling was 166 days and the CPM method was 280 days. Cashflow analysis starts with a 20% down payment and a term for each progress in multiples of 25%. Billing is carried out 4 times, namely Dp 20%, Term I 50%, Term II 75% and Term III 100%. From the analysis, it was obtained that with the actual PDM, a maximum cost support is needed in week XVII of IDR 3,237,924,656.00, the modified PDM method in week IX is IDR 2,706,839,037.00 and the CPM method in week XXXII is IDR 2,954,946,773.00