Penentuan Jumlah Tenaga Kerja Yang Optimal

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Moh Arif Bakhtiar E ◽  
Hendro Susilo
Keyword(s):  
Construction Projects ◽  
Development Project ◽  
Time Schedule ◽  
Workforce Management ◽  
Labor Allocation ◽  
Physical Form ◽  
Schedule Time ◽  
S Curve ◽  
Workforce Needs

Abstract— Construction projects are a series of activities that have a time at the beginning and end time with the aim of realizing the idea into a physical form or building. Labor is one of the important resources, because often the supply is limited, both because of quality and other things. With a good workforce management impact on the completion of construction projects. But in the construction phase, contractors often experience many problems related to the construction project's labor allocation. This study uses the help of Microsoft Project 2007 application to create a network of Precedence Method Method (PDM) methods, then generate a bart chart for the preparation of a project implementation schedule or S schedule (time schedule) so that a histogram can be obtained after a leveling process is needed. The results of data analysis with a case study of the Bank Mandiri Development Project Palembang Office Building, it can be concluded leveling shows that the workforce needs are far less than previously planned. The number of planner workforce based on planner consultant data and reports is 8681 people and from the research results based on data processing the leveling process is only 7754 people. Keywords—: S curve; labour, histogram; Microsoft Project.

scholarly journals A Case Study of S-Curve Analysis: Causes, Effects, Tracing and Monitoring Project Extension of Time

2021 ◽  
Vol 7 (4) ◽  
pp. 649-661
Author(s):  
Habib Musa Mohamad ◽  
Mohamad Ibrahim Mohamad ◽  
Ismail Saad ◽  
Nurmin Bolong ◽  
J. Mustazama ◽  
...  
Keyword(s):  
Construction Projects ◽  
Curve Analysis ◽  
Sustainable Construction ◽  
Life Project ◽  
Contract Administration ◽  
Long Run ◽  
Application Techniques ◽  
S Curve ◽  
Project Delay

S-Curve analysis in the construction interpreted as managing project with knowledge and traceable in the context of sustainable construction while displays the cumulative costs, labour hours or other quantities plotted against time. In the contract administration, delays in completing a construction project led to the breach of contract but, in contracts itself allow the construction period to be extended where there are delays that are not the contractor's fault. Under those circumstances, a presentation of a case-study regarding the analysis of S-Curve of a life project drew comparative interpretation of project performance towards project delivery schedule has been conducted in private initiative project. This study aims to investigate and examine the factors that cause delays in construction projects from the perspective of S-curve representations. The paper aims to provide in depth light about the existing causes of project delay and describe the key sources of financing problem and identify the consequences of contraventions of contract. Two distinct parts divided which are refers to the methods used to assess the perceptions of clients, consultants, and contractors on the relative importance of causes of delay in a project and referred to the procurement and documentation to analyse the delay. As a result, an Extension of Time (EOT) granted and identically changed the progress towards extension time where better planning demanded for improvement and restoration progress kept on track. This paper presented a practical and comparative S-Curve within extension of time to ensure delivery of project on schedule. In the long run, the identified causes are combined into 16 factors. Finally, the result of this match was brought in order to critically understand and provide a guideline to contractor in preparing EOT application and choose reliable factor based on the specific circumstances of project delay factors thorough review conducted to reveal the nature of EOT application techniques. Doi: 10.28991/cej-2021-03091679 Full Text: PDF

scholarly journals Penerapan Manajemen Proyek Pada Tahap Pengendalian Waktu Pelaksanaan Proyek Soft Landscaping Jumeirah Resort Pecatu Graha Bali

2020 ◽  
Vol 3 (1) ◽  
pp. 01-05
Author(s):  
Ni Ketut Utami Nilawati ◽  
I Gde Eka Dharsika
Keyword(s):  
Project Management ◽  
Final Stage ◽  
Development Project ◽  
Limited Resources ◽  
Time Schedule ◽  
Financial Efficiency ◽  
Implementation Time ◽  
S Curve ◽  
Time Accuracy

Construction are increasingly needed in the implementation of projects, especially the existence of services that can control the main demands regarding the accuracy of quality, financial efficiency and time accuracy are very much needed. In implementing the Jumeirah Resort Pecatu Graha Bali Development Project, researchers focused their research on soft landscaping work. The role of project management in controlling the implementation time is to obtain a good way or technique to be applied so that limited resources can be managed so as to obtain effective and efficient results due to well-ordered arrangements.The "S" curve is one of the techniques for controlling project progress by using a combination of the "S" curve and the milestone. After looking at the schedule of plans and comparing with progress in the field, there are very significant delays in work on: (a) Groundcover work, when viewed from February 2019 time schedule groundcover work should have been completed, but progress data in the field in that month only reached 30.92%; (b) Shrubs work, if seen from March 2019 time schedule shrubs work should have been completed, but progress data in the field in that month only reached 35.86%; (c) Palms work, if seen from April 2019 time schedule palms work should have reached the final stage of work, but progress data in the field in that month only reached 43.69%. Factors causing the delay in work based on daily reports include: (a) Land not yet ready for planting because it is still waiting for civil works to be completed; (b) Delay in supply of types of plants: groundcover, shrubs and palms, because plants are imported from Java, especially in Malang areas.

scholarly journals Beta Distribution for Estimating Risk Associated Time Schedule of Hydropower Projects in Nepal

2021 ◽  
pp. 67-78
Author(s):  
Kiran Kumar Shrestha ◽  
Rabindra Kayastha
Keyword(s):  
Quantitative Analysis ◽  
Construction Projects ◽  
Construction Project ◽  
Simulation Method ◽  
Development Project ◽  
Project Work ◽  
Time Schedule ◽  
Project Schedule ◽  
Expected Time ◽  
Hydropower Construction

Background: Risk is associated with every kind of project work whether it is related to engineering construction project, software development project, financial transaction process or business process. There isn't any project which is free of risks. It is inherent in all types of projects. Observing risk associated with a project can help in successful completion of projects in expected time and expected cost with good assurance of quality. This article is concerned with quantitative analysis of risks coined with hydropower construction project in Nepal. Objective: The main objective of this paper is (a) to identify different activities involved in hydropower construction projects (b) to estimate risk associated time schedule of the identified project activities. Materials and Methods: Data required for the fulfillment of the objective are obtained by interview and discussion with executives of “Shiva Shree Hydropower Limited” and by using project schedule charts of projects won by the company. In this article quantitative analysis of schedule risk of hydropower project is studied by simulation method. Results: Different activities involved in hydropower construction project are identified. Also, risk associated with time schedule of project are observed quantitatively by simulation using beta-PERT distribution. Conclusion: Estimation of time schedule associated with project activities is more realistic when it is analyzed by using beta-PERT distribution compared to other statistical distributions.

scholarly journals ALTERNATIF PEMECAHAN MASALAH KETERLAMBATANPENYELESAIAN PROYEK (STUDI KASUS PEMBANGUNAN GEDUNG PUSKESMAS LAREN KABUPATEN LAMONGAN)

Jurnal CIVILA ◽  
2018 ◽  
Vol 3 (2) ◽  
pp. 172
Author(s):  
Fridha Guivanny Putri ◽  
Rio Rahma Dana
Keyword(s):  
Public Health ◽  
Health Center ◽  
Construction Projects ◽  
Development Project ◽  
Time Schedule ◽  
Acceleration Time ◽  
Public Health Center ◽  
Specific Implementation ◽  
Price Analysis ◽  
Acceleration Time Ratio

The successfulness of executing the construction projects right on time is one of the most important goals both for the owners and contractors. In general, each construction project has a specific implementation plan and schedule of implementation. It contains some important things, for example when the project should begin, when it should be completed, and how to provide the resources. As in the development project of Public Health Center building in LarenDistrict, Lamongan Regency in 2016 which has been delayed up to six weeks, causing inaccuracy between the planningschedule anddevelopment implementation. This research aims to be used as an evaluation to get the fastest acceleration time by using cut and crashing method. From the data obtained fromthe time schedule, cost estimate plan (RAB),wage price analysis, and project materials,the next step is making the job network and determining the critical pathfor cut and crash method. The results of the study show that the project acceleration can be done up to 82 days or 7 days faster than the normal day, that is 89 days with acceleration cost of Rp. 347.935.000,00 or increased from the normal cost of Rp. 345.390.000,00. The percentage of the selected acceleration time ratio is approximately 6.02% faster than the normal time, while for the acceleration cost is approximately 0.68% greater than the normal cost. Therefore, with this research, the work actually can be completed on December 13, 2016.

scholarly journals The S-Curve as a Tool for Planning and Controlling of Construction Process—Case Study

2020 ◽  
Vol 10 (6) ◽  
pp. 2071 ◽  
Author(s):  
Jarosław Konior ◽  
Mariusz Szóstak
Keyword(s):  
Construction Projects ◽  
Construction Project ◽  
Careful Analysis ◽  
Construction Site ◽  
Construction Process ◽  
Financial Flows ◽  
Cumulative Cost ◽  
S Curve ◽  
Construction Works

One of the key tasks of an investor and a contractor at the stage of planning and implementing construction works is to measure the progress of execution with regard to the planned deadlines and costs. During the execution of construction works, the actual progress of the works may differ significantly from the initial plan, and it is unlikely that the construction project will be implemented entirely according to the planned work and expenditure schedule. In order to monitor the process of deviations of the deadline and the budget of the investment task, several rudimentary methods of planning—as well as the cyclical control of the progress of construction projects—are used. An effective tool for measuring the utilization of the financial outlays of a construction project is the presentation of the planned financial flows on a timeline using a cumulative cost chart, the representation of which is the S-curve. The purpose of this paper is to analyze the course of an sample construction project comparing the planned costs of the scheduled works with the actual costs of the performed works, as well as identifying the reasons leading to the failure to meet the planned deadlines and budget of the project implementation. As part of the research conducted at a construction site of a hotel facility, the authors of this paper analyzed each of the 20-month effects of financial expenditures on construction works that were developed and processed by the Bank Investment Supervision (BIS) over a period of three years (between 2017 and 2019). Based on these results, charts and tables of the scheduled and actual cumulative costs of the completed construction project were prepared, the careful analysis of which enables interesting conclusions to be drawn.

scholarly journals The Significance of Scope 3 GHG Emissions in Construction Projects in Korea: Using EIA and LCA

Climate ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 33
Author(s):  
Kyeong-Tae Kim ◽  
Ik Kim
Keyword(s):  
Life Cycle ◽  
Construction Projects ◽  
Ghg Emissions ◽  
Development Project ◽  
Construction Work ◽  
Ghg Emission ◽  
Wrong Decision ◽  
Evaluation Procedures ◽  
Exact Amount

In Korea, a greenhouse gas (GHG) environmental impact assessment (EIA) has been conducting since 2012, which sets the evaluation procedures and methods for GHG items during the EIA. However, the current EIA on GHG emissions can support wrong decision-making because the evaluation does not consider Scope 3 GHG emissions. Accordingly, this study proposed the life cycle EIA (LCEIA) method to identify changes in GHG emissions that need to be managed by considering Scope 3 GHG emissions in construction projects. The LCEIA method incorporates life cycle CO2 (LCCO2) including Scope 1, Scope, and Scope 3 GHG emissions using the concept of life cycle assessment (LCA) into the scoping step of the EIA process. The case study was conducted using existing EIA on GHG emission and LCEIA methodology for a development project in Gwangyang City. Scenario 1 is defined as an approach that calculates GHG emissions using the existing EIA method, and scenario 2 is also defined as a process using the LCEIA method. Results reveal that Scenario 2, including Scope 3 GHG emissions, had 46.4−51.2% more GHG emissions than Scenario 1. Sensitivity analysis for electricity and liquefied natural gas (LNG) density was also performed. Although the change in the carbon emission factor of electricity had a slightly sensitive effect on the research results, the LNG density was found to be less sensitive. This study believes the importance of switching to an EIA reflecting life cycle carbon dioxide (LCCO2) to calculate the exact amount of GHG emissions for construction work.

scholarly journals Morphological Change of Dhaka City Over a Period of 55 Years: A Case Study of Two Wards

1970 ◽  
Vol 2 ◽  
pp. 30-38 ◽  
Author(s):  
Bayes Ahmed ◽  
Muhammad Rakibul Hasan Raj ◽  
KM Maniruzzaman
Keyword(s):  
Urban Form ◽  
Spatial Dynamics ◽  
Morphological Structure ◽  
General Interest ◽  
Morphologic Change ◽  
Dhaka City ◽  
Territorial Expansion ◽  
Physical Form ◽  
The Many

Dhaka City has undergone radical changes in its physical form, not only by territorial expansion, but also through internal physical transformations over the last decades. These have created entirely new kinds of fabric. With these changes, the elements of urban form have changed. Plots and open spaces have been transformed into building areas, open squares into car parks, low land and water bodies into reclaimed built-up lands etc. This research has its general interest in the morphologic change of Dhaka City. It focuses on the spatial dynamics of urban growth of Dhaka over the last 55 years from 1952-2007. In the research, the transformation of urban form has been examined through space syntax. The aim behind using this technique is to describe aspects of relationships between the morphological structure of man-made environments and social structures and events. To conduct this research, Wards 49 and 72 of Dhaka City Corporation were selected as the study areas, of which Ward 72 is an indigenous and Ward 49 is a planned type of settlement. Being a planned residential area, the syntactic measures from this morphological analysis are showing quite unchanged and high values in all phases for Ward 49 and the physical characteristics of Ward 72 (Old Dhaka) still represent the past. The syntactic values are found to be higher for Ward 72 and than Ward 49. Higher values indicate that the street network is highly connective among each other. Time affects differently the layout of cities and the architecture of buildings. Of the many human creations, street systems are among the most resistant to change. This has been emphasized in this study, thereby facilitating the comparison of urban layouts across space and time. The interpretation of history in the light of quantitative accounts, as demonstrated in this study, will be of value to urban planners and urban designers for the future planning of modern Dhaka City.DOI: http://dx.doi.org/10.3329/jbip.v2i0.9554  Journal of Bangladesh Institute of Planners Vol. 2, December 2009, pp. 30-38

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