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Construction and Material Journal Vol 2, No 2 (2020): CONSTRUCTION AND MATERIAL JOURNAL VOL. 2 NO. 2 JULI 2020
Publisher : Politeknik Negeri Jakarta

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AbstractA construction project has several factors that affect the success of a project. One of the factors was an optimal project’s cash flow. Optimizing cash flow of a construction project can be done by making several cash flow plans, and choosing the best one considering appropriate project’s time and cost constraints. The purpose of this study is to obtain an optimal cash flow plan on a construction project  using a capital loan from Sharia Bank.This research will be carried out on a specific project which is Construction and Rehabilitation Project of Government Health Service Building, District of Gunungkidul. In this study, the method used to analyze data is to make several project cash flow based on “Earliest Start” scheme by determining the duration for each activity and creating a network diagram using the Precedence Diagram Method (PDM). The final step is analysing the cash flow by calculating negative overdraft for each cash flow plan to determine the amount of capital loan from Sharia Bank and then comparing profits to obtain the optimal one.Analysis and discussion reveal that on the system of given Down Payment, and Project’s Termyn 50%, 75% and 100%, and a loan from Sharia Bank it is found that the optimum cash flow will make profit of 7.49%. Keywords: Cash Flow, Earliest Start (ES), Optimal Profit, Sharia Bank.AbstrakProyek konstruksi memiliki beberapa faktor yang mempengaruhi kelancaran proyek tersebut, salah satu yang mempengaruhi proyek tersebut adalah cash flow optimal. Optimalisasi cash flow suatu proyek konstruksi dapat dilakukan dengan membuat rencana cash flow secara tepat dari suatu proyek. Tujuan penelitian ini adalah mendapatkan rencana cash flow optimal pada proyek konstruksi dengan menggunakan sumber modal bank syariah.Obyek penelitian akan dilakukan pada proyek Pembangunan dan Rehabilitasi Gedung Pelayanan Kesehatan Pemerintah Kab. Gunungkidul. Pada penelitian ini dalam analisis data dibuat rencana cash flow proyek dengan menentukan durasi untuk setiap kegiatan dan membuat diagram jaringan kerja earliest start menggunakan metode Precedence Diagram Method (PDM) dengan bantuan software microsoft. Langkah terakhir adalah analisis cash flow dengan menentukan overdrat negatif pada rencana cash flow untuk menentukan nominal pinjaman dengan menggunakan sumber modal bank syariah lalu membandingan keuntungan untuk mendapatkan profit optimal.Hasil analisis cash flow dan pembahasan didapat beberapa kesimpulan yaitu pada sistem pembayaran uang muka, termin 50%, termin 75% dan termin 100% dari owner serta menggunakan pendanaan bank syariah didapatkan cash flow optimal pada kondisi penjadwalan earliest start dengan persentase profit sebesar 7,49%. Kata kunci: Cash Flow, Earliest Start (ES), Optimal Profit, Bank Syariah.
Scheduling of Application for Siteplan Authorization Permit Case of Licensing Process at Investment and Integrated Licensing Services Office in Sleman Regency Nugraheni, Fitri; Abma, Vendie; Yasien, Sigit
Applied Research on Civil Engineering and Environment (ARCEE) Vol 1, No 02 (2020): Urban Building and Infrastructure

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/arcee.v1i02.2680


The permit process must comply with laws and regulations. The permit functions as controlling and supervising tool from the government of activities in certain cases based on the guidelines that must be implemented. The permit also functions as a disciplinarian and regulator in accordance with the law in the administration of government. In the process, several constrains or obstacles often occur in terms of the period of the process as well as technical and non-technical constrains. In this research, an analysis of the scheduling of the site plan permit approval process is based on field data related to the site plan permit approval process with the PERT method. The data used are primary data in the form of interviews and filling in the form of questions and secondary data in the form of a site plan approval process flow. The data that has been collected is then processed and analyzed in several stages. First, calculate the expected time period (te) using interview data and the results of filling in the expected time period (te), so that the expected time period for each activity will be found in accordance with the site plan approval process flow. Second, determine the dependency relationship between activities. In this stage, the relationship between each activity is determined. Third, create a network by changing the existing site authorization process flow into a form of network planning. The results of the schedule using the PERT method are a period of 38 days with alternatives that can be done to reach the time (Tx) of 18 working days in accordance with the Regent Regulations. In addition, the probability of the overall activity being completed is 0.8531 or 85.31%.