scholarly journals ANALISIS NETWORK PLANNING DENGAN CRITICAL PATH METHOD (CPM) DALAM USAHA EFISIENSI WAKTU PADA PRODUKSI PRECAST DI PT XYZ

2020 ◽  
Vol 18 (3) ◽  
pp. 345
Author(s):  
Safa’at Safa’at

PT. XYZ is a company engaged in the field of Readymix and precast concrete or concrete ready to use and precast concrete. This research is aimed to evaluate and accelerate the execution time and the cost with the critical path method (CPM), hopefully the job execution time is faster with a more efficient cost. The method that is done is to interview the employees who are appropriate to the field and to collect the necessary documents, from the data is carried out evaluation and further remediation measures to accelerate the work and efficiency of costs. From the results of the study came the conclusion that with a critical path method (CPM) application, job execution time can be accelerated and cost more efficiently..

2016 ◽  
Vol 8 (2) ◽  
pp. 71-78
Author(s):  
Bartłomiej Sroka ◽  
Elżbieta Radziszewska-Zielina

Reduced time and, by the same token, the cost of the project is a crucial factor in contemporary construction. This article presents a method for the exact optimisation of a resource-constrained scheduling problem. Based on the Critical Path Method, graph theory and linear programming, an algorithm was developed and the FROPT program was written in Matlab to minimise the execution time of the task. By using the newly-created program, sample networks were calculated and the results were compared with results obtained by using the MS Project scheduling program (using approximation algorithm). The execution time obtained by using FROPT were on average 10% shorter than those obtained using MS Project. In selected cases the improvement in execution time reached 25%. A deterministic approach to the problem may shorten planned project times and bring financial benefits. Due to the exponential complexity of the algorithm, it is most useful in solving small or highly coherent networks. The algorithm and program may result in benefits not offered by commercial software for planners of building projects.


2018 ◽  
Vol 5 (2) ◽  
pp. 153
Author(s):  
Firdaus Hidayatul Iman ◽  
Hadi Wahyono ◽  
Eka Bambang Gusminto

This research was conducted to evaluate the scheduling of time in the project of building type 30 house in Tegal Besar Jember Palace. This research is an action research research using CPM method. The data used in this research are primary data and secondary data. Primary data in this research is data about how long building type 30 housing and expenses incurred to build type 30 house in Tegal Besar Palace Jember. Based on the result of research known that building of type 30 house in Tegal Besar Jember Palace based on CPM method for 54 days. While the cost out to build a type 30 house based on the critical path CPM method of Rp 43.983403. In terms of cost, the completion of the projects is no different because PT. Kinansyah Adi Jaya Land uses wholesale system and housing type 30 subsidized by government.Keywords: Time, Critical Path, Critical Path Method (CPM)


2011 ◽  
Vol 328-330 ◽  
pp. 368-371 ◽  
Author(s):  
Li Xin Dai ◽  
Zong Li

Most resources used in a project will have an easily determined cost. We need to know which staff members can work on which parts of a project and what needs to be done, and when. Project time management should be broken down, step by step, just as other parts of the project are broken down in the planning phase. This will help make sure that everything is done when it needs to be, and to keep the project from going over its budget because it went well past the time scheduled for it. A project manager often need to control the whole time of the project and grasp the key process in those tasks which can shorten the period and reduce the cost. This paper discusses the algorithm of AOE-net in the critical path and its application to evaluate the completion time in the network planning of project time management.


2016 ◽  
Vol 14 (2) ◽  
pp. 259
Author(s):  
Berry Yuliandra ◽  
Rini Syahfitri

PT X is a company engaged in the production of the module, ship relay station (Electrical House)as well as oil and gas mining equipment. The company uses a project-based production system in the production process of that equipment. Type of project usually performed is the Engineering-Procurement-Construction (EPC) project. EPC is a type of project that involves process engineering, material procurement, and products construction. PT X main product is a module or electrical house (E-House). Activities can be disrupted by a variety of conditions in the project implementation phase, such as weather and other unforeseen events. These conditions can hamper the process and affect the performance on the field.Activity scheduling and load out process which often suffer from delays caused project deadlines are often past the limit is given by the client. As in the case of E-House project examined in this study, its implementation has been delayed and should be accelerated for 8days. Therefore, the crashing project can greatly assist in adjusting the implementation plan with the actual condition. Crashing project analysis conducted based on project network diagram. The critical path is determined using Critical Path Method (CPM). Based on analysis results, project execution time can be shortened up to 8 days earlier. (From the normal time of 94 days to 86 days) at the cost $ 4.203.093,25. 


2018 ◽  
Vol 15 (2) ◽  
pp. 197-208
Author(s):  
N M E Wardani ◽  
S Musdalifah ◽  
D Lusiyanti

This study aimed to optimize the cost and time of implementation of development projects in residential homes Citraland located in the town of Palu subdistrict villages Mantikulore Tondo. Completion of construction of residential houses has been delayed time of completion of the construction. This leads to greater costs incurred in development projects. Therefore, to solve these problems is necessary to analyze the optimization of project time to determine how long a project is completed. Optimization of costs and project execution time is calculated using the Critical Path Method (CPM). The method is based on the results obtained, namely the normal completion time of the project for 69 weeks with a total cost of Rp. 297,887,212.00. Aftertime optimization through crashing eachthe implementation of the activities of the development to 48 weeks with a total cost of Rp. 350,261,175.00. The probability of completion of project design development using methods Program Evolution and Review Technique (PERT) is great opportunity to complete the project work for 48 weeks amounted to 93.19%


2018 ◽  
Vol 7 (12) ◽  
pp. 6731
Author(s):  
Rini Wijaya Kusuma Wardhani ◽  
Kastawan Mandala

ABSTRACT The increasing number of construction companies in Indonesia poses a challenge for companies to improve the effectiveness and efficiency of resource management in order to excel among competitors. The purpose of this study is to determine whether the implementation of Network Planning can improve efficiency and effectiveness in the allocation of time and cost on the construction project. The research method is a case study to address the problem at Putra Dewata PT Karya Tama concerning network planning of Mutiara Residence Housing project. Data analysis technique used is Critical Path Method. The results show that the project completion time is 142.5 days, 14.5 days faster than the calculation result by the company with Gantt Chart method. This will provide benefits in terms of cost of completion of the project, where cost efficiencies that can be gained is Rp. 20,807,500.   Keywords: network planning, critical path method, critical path.  


2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Ulfi Pristiana ◽  
Moch. Narowi

One of the constraints experienced in the implementation of the project company is discrepancy between the schedule of the project implementation plan withthe state of the field, causing a delay in its completion, so the effect on the cost of theproject increased. This research was conducted by taking data time shedule of PT.Dimensi Arsitektur Indonesia has undertaken the maintenance and painting of TuguPahlawan Surabaya. From these data it can be calculated by using the critical pathCPM (Crithical Path Method) and software programs. On the use of CPM (CrithicalPath Method) stages of completion which is preparing an action plan, arrange network,determine the forward and backward calculation, determining the spare time ofcalculation. The project which is the object of the study authors is the maintenance andpainting of Tugu Pahlawan Surabaya that has been done by PT. ArchitecturalDimensions Indonesia. PT. Architectural Dimensions Indonesia is a consulting servicescompany serving residential, lanscaping and interior but also engaged in the drainageand road sector. In the drafting of planning time and costs during the company onlyrelied on the experience of work done on the previous project. From the planning thathas been done by the company, then do research to find out whether the plans made thecompany so far has been optimal. The research method using descriptive researchwhere data collected by the researchers by means of direct observation of companiesand interviews, then from the data obtained researchers performed data processing andanalysis, so as to obtain an overview of the planning time and costs that may beconsidered by companies as well as can be to be completed by the company. Based onthe results of research and calculations by network planning using CPM (crithical pathmethod), it can be concluded that the planning time and cost network planning to use itby using critical path method CPM appropriate to be applied in the company at thetime of planning and project cost, because it optimizes the time and cost of the project.More efficient project time 6 days or by 9.67% and the cost of the project is alsoefficient Rp 17,709,597.6 or equal to 9.67%.Keywords: Project Scheduling, CPM, Optimization


2020 ◽  
Vol 3 (2) ◽  
pp. 162
Author(s):  
Tsalist Iluk ◽  
Ahmad Ridwan ◽  
Sigit Winarto

The project is an activity carried out to products or services that have specific scheduling. Scheduling is determined by the relationship between activities made very detailed and accurate. Therefore, the purpose of the final task is to know how to implement the Critical Path Method (CPM) and Program Evaluation and Review Technique (PERT) in scheduling the project, which originally used the Bar Chart method with a duration of 140 days and resulted in a cost of Rp. 5.500.000.000. From the calculation result of this final task in using the CPM, the method generates a period of 105 days and provides cost after crashing in the labor increase of Rp. 5.568.464.052 and the increase in working hours (overtime) Rp. 5.603.725.490. While using the PERT method generates a period of 109 days and generates the cost after being crashing in the labor increase of Rp. 5.574.721.755 and the increase of working hours (overtime) of Rp.5.612.082.633 with a projected probability of reaching the target of 84 %. Has a comparison with the difference in cost of Rp. 6,257,703 in increased workforce and Rp. 8,357,143 other than working hours.Proyek merupakan suatu kegiatan yang dilakukan untuk menghasilkan produk / jasa yang mempunyai penjadwalan tertentu. Penjadwalan ditentukan oleh hubungan antar kegiatan yang dibuat sangat rinci dan akurat. Oleh karna itu tujuan dari artikel ilmiah ini adalah untuk mengetahui bagaimanakah penerapan metode Critical Path Method (CPM) dan Program Evaluation and Review Technique (PERT) pada penjadwalan proyek tersebut yang awalnya  menggunakan metode Bar Chart dengan durasi waktu 140 hari dan menghasilkan biaya sebesar Rp.5.500.000.000. Dari hasil perhitungan artikel ilmiah ini dalam menggunakan metode CPM menghasilkan jangka waktu 105 hari dan mengasilkan biaya setelah di crashing dalam penambahan tenaga kerja sebesar Rp. 5.568.464.052 dan penambahan jam kerja (lembur) Rp.5.603.725.490 Sedangkan menggunakan metode PERT menghasilkan jangka waktu 109 hari dan menghasilkan biaya setelah dicrashing  dalam penambahan tenaga  kerja  sebesar  Rp. 5.574.721.755  dan penambahan   jam kerja (lembur) Rp. 5.612.082.633. dengan probabilitas proyek  mencapai target 84%. Mempunyai perbandingan selisih biaya sebesar Rp. 6.257.703 dalam penambahan tenaga kerja dan Rp. 8.357.143 dalam penambahan jam kerja.


Author(s):  
Muhammad Daut Siagian ◽  
Rosliana Siregar ◽  
Evi Adelina Nasution

Penelitian ini membahas mengenai kegiatan verifikasi koleksi buku (stock opname) yang dilakukan di perpustakaan sekolah SMA Negeri 2 Medan. Metode yang digunakan untuk mengoptimalkan waktu penyelesaian kegiatan tersebut dengan network planning (analisa jaringan kerja) yaitu menerapkan Critical Path Method atau metode lintasan kritis. Hasil yang diperoleh dari pembahasan menunjukkan waktu optimal (waktu terpendek) untuk menyelesaikan kegiatan verifikasi koleksi buku tersebut adalah selama 41 hari dengan perkiraan waktu normal.


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