scholarly journals Analisa Infrastruktur Desa Sukaci-Baros Dengan Metode Critical Path Method (CPM)

2017 ◽  
Vol 1 (1) ◽  
pp. 35
Author(s):  
Ahmad Nalhadi ◽  
Nana Suntana

CV. ABP a construction company worked in infrastructure building development for private and goverment. Now CV. ABP is handling infrastructure development project of the acropolitan area (Right Payment) Sukaci - Baros Village. This project has been late for 19 days from the dead line 126 days. Therefore the cost is getting higher. It’s happened because bad management is the problem source. Restoring the project time need to be focused on the cost and the due date based on the schedule. Scheduling evaluation using Critical Path Method (CPM) and Crashing to find optimal results using Critical Path Method (CPM) can be found the critical paths activity, there are ground digging , bopflang installation, stone installation, agregrate B agrgregation , aggregate A flatting, rigit bavement work, and refining, when the time suppression obtained optimal time results from 126 days to 92 days. It taken an alternative to the addition of working hours with duration 92 day after the crashing. Using two alternatives, additional working hours and the addition of workforce, obtaining the difference of extra hours of work cost Rp 80.128.125 and labourcost increase Rp 55.260 from the regular cost.

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):  
Syahrur Romadhona ◽  
Fredy Kurniawan ◽  
Julistyana Tistogondo

The project acceleration by the Crash Program is one of the ways that is often used to make time and cost efficiency on an ongoing project. Acceleration of project completion time will affect the efficiency of equipment and labor productivity. In the case study of the Surabaya Outer East Ring Road Project Construction Segment 1, a project that has the potential to be accelerated is discussed in order to obtain efficiency values in terms of time and cost, Project acceleration by means of the Crash Program using the Precedence Diagram Method (PDM) method to determine the value of efficiency. This project uses resources, in this research the software used is Microsoft Project 2016. The research method used is to design network planning, find the critical path for each job, determine the work that has the potential to be accelerated, calculate the crash cost in additional working hours. and work shifts, calculating direct costs and indirect costs for each activity that changes due to changes in the duration of implementation, calculating the cost slope. Application of the Crash Program in the work of Asphalt Concrete Surface Layers (AC) thick 5 cm in the project will have an impact on increasing the time efficiency previously planned from 180 working days to 175 working days and efficiency with the difference in project costs of Rp. 18.313.935,8 with a ratio of 0,997 between the PDM method compared to the cost of the contract value calculated using the crashing project method.


2021 ◽  
Vol 5 (1) ◽  
pp. 44
Author(s):  
Henni Amalia

Penjadwalan proyek merupakan salah satu elemen hasil perencanaan yang dapat memberikan informasi tentang jadwal rencana dan kemajuan proyek dalam hal kinerja sumber daya berupa tenaga kerja, peralatan, dan material. Penjadwalan proyek dengan metode jalur kritis mempertimbangkan waktu penyelesaian suatu proyek berdasarkan waktu teroptimal selesainya proyek. Penelitian ini bertujuan menghitung waktu perakitan blok lambung kapal yang terintegrasi denga sistem perpipaan. Analisa data dalam penelitian ini memakai metode jalur kritis yang terdiri dari 5 tahap, meliputi: mengidentifikasi dan mengurai komponen kegiatan, mengidentifikasi beban pekerjaan, menghitung perkiraan durasi pekerjaan, menyusun komponen kegiatan, dan mengidentifikasi jalur kritis. Dari hasil identifikasi, diperoleh durasi perakitan keseluruhan blok lambung ialah selama 1.379 jam  atau 176 hari dengan durasi perakitan terlama yaitu 219 jam (44 hari) pada blok 6 dan durasi perakitan tersingkat ialah pada blok 1 yaitu 69 jam (14 hari).Project scheduling is one of the planning’s result that can provide information about the schedule plan and progress of the project in terms of the performance of resources such as manpowers, equipments, and materials. Project scheduling by critical path methods considers the time to completion of a project based on the optimal time of project accomplishment. This research is purposed to calculated total duration of assembly of the hull-blok integrated with piping systems. Data analysis in this research uses the critical path method which consists of 5 stages, including: identifying the components of activities, identifying workloads, calculating the estimated duration of activities, compiling activities components, and identifying critical paths. From the results of identification, the overall assembly duration of the hull block was 1.379 hours or  176 days with the longest assembly duration is 219 hours (44 days)at block 6 and the shortest duration of assembly is at block 1 which is 69 hours (14 days).


2021 ◽  
Vol 9 (1) ◽  
pp. 17-24
Author(s):  
Mia Syafrina ◽  
Fandy Bestario Harlan

Construction projects are generally the most high-risk businesses, especially shipbuilding projects. Efforts to reduce the risk can be done by minimizing the potential risk. This study aims to see potential high risk and prevent delays in the completion of ship construction using the Critical Path Method CPM at PT. XYZ. By using the Critical Path Method CPM critical paths can be given more attention so that they will not interfere ship construction projects. In addition, it is also a form of anticipation if there is a delay, it is possible to reschedule.


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)


2019 ◽  
Vol 2 (2) ◽  
pp. 69
Author(s):  
Adi Aprian Jaya ◽  
Kusnul Yakin ◽  
Maulidya Octaviani Bustamin

In the implementation of construction project activities there are thre things that influence the success and failure of the project: time, cost and quality. The success of a project is usually seen from the timing of completion which is relatively short but without neglecting the quality of the project work. Appropriate and targeted project management and management are required to ensure the time, cost, and quality of the project. This is certainly to avoid a variety of undesirable things such as late settlement, swelling costs, quality failures, and so on that could have an impact on project failure and the emergence of the cost of fines. The purpose of this study is to calculate changes in cost and time of project implementation with alternatives to additional working hours (overtime) comparing the results between normal and cost changes after the addition of working hours (overtime). The data used in this research is secondary data obtained from contractor implementing. Arrow diagram The results program are critical paths and cost increases due to the addition of working hours (overtime) while the result of the time cost trade off method is the acceleration of duration and the increased cost due to the acceleration of duration in any accelerated activity. The results of this study indicate that the total project time and cost under normal conditions is 508 days at a cost of Rp 22.240.655.701  with the addition of 3 hours of overtime work in the duration of crashing 485 days and at a cost of Rp 23.252.220.373,34


2020 ◽  
Vol 9 (1) ◽  
pp. 44-52
Author(s):  
Gunaedy Utomo ◽  
Irna Hendriyani ◽  
Siti Nor Aida

This research purposes to evaluate the implementation of the drainage project in Jl. Mulawarman, Gg. Arjuna, Sepinggan. This research uses the CPM (Critical Path Method) and the PERT (Project Evaluation and Review Technique). Based on the budget plan, time schedule, weekly report, documentation and interview found that the result of the CPM with two critical paths are work activities. The first critical path are: Activity A (Mobilization and Demobilization), Activity C (Landfilling activity), Activity F (Concrete works K-175, Ready Mix). The second critical path are: Activity A (Mobilization and Demobilization), Activity E (Begisting work for black channels), and Activity G (Plain U24 Concrete Iron Works). Meanwhile, the result of PERT has 49% chance to be completed with the project duration of 18 weeks.


2021 ◽  
Vol 6 (3) ◽  
pp. 165-169
Author(s):  
Ifeoma Christy Mba ◽  
Emmanuel Ikechukwu Mba ◽  
Winnie Ogonna Arazu ◽  
Oluwaseun Alade

Infrastructure development is the hub of economic diversification, for any nation to grow economically; it must be seriously dependent on its iron and steel development. The construction of the Ajaokuta iron and steel industry can be dated and traced to the year 1979 and as of 1994, the project was near completion with 98% of the project almost completed. As of 2018, the project is yet to be completed. The gap between 1979 through 1994 to 2018 gives the Nation a whole cause to worry thereby implying whether the delay in the work is due to the incompetency of the contractors in question or is it due to bad governance and suspected looting. This paper, therefore, applies the use of the popular Critical Path Method (CPM) in monitoring the progress of the yet-to-be-completed Ajaokuta project focusing on its possible network diagram, earliest and latest time of completion.


Author(s):  
Lusiana Prastiwi

East Nusa Tenggara Province is known to have many traditional woven craft, one that is well known by the public is Kupang Ikat woven. Enterprises weaving is still managed traditionally built with familial management and expertise only found in hereditary. In addition, to determine the timing of production of Kupang ikat woven still using forecasting as a guide. The forecasting results in the absence of standard production time. One method that can be used for determining the optimal time is the critical path method (CPM). This method is part of a network methods oriented work on determining the time schedule and estimate deterministic (certain). Research shows that the production time ikat Kupang woven is 20 days.Keyword : CPM, network, ikat Kupang woven


2017 ◽  
Vol 862 ◽  
pp. 296-301
Author(s):  
Silvianita ◽  
Amalia Herdianti Winda ◽  
Mulyadi Yeyes ◽  
Suntoyo

In order to succeed Indonesia’s mission to provide 23.000 MegaWatt, the gas pipeline transmission has been built. The Project consists of many activities that related to each other, If one of the activities are having a problem that caused a delay, then the succeeding activities will get affected and could cause a project’s delay. To anticipate, it needs the acceleration of the project’s activity. In this case, the pipe transmission project would cause a 7 day delay. To accelerate it, this study gives the calculation, using “What If Analysis Method” on “Critical Path Method”. The acceleration actions are treated in accordance with providing extra working hours and the certain amount of manpower in the succeeding activities.


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