scholarly journals WAKTU PENYELESAIAN PROYEK KONSTRUKSI MENGGUNAKAN PRECEDENCE DIAGRAM METHOD DAN LINE OF BALANCE

2020 ◽  
Vol 9 (3) ◽  
pp. 190
Author(s):  
I WAYAN YOGA ASTAWA ◽  
NI KETUT TARI TASTRAWATI ◽  
LUH PUTU IDA HARINI
Keyword(s):  
Construction Projects ◽  
Balance Method ◽  
Unit Price ◽  
Diagram Method ◽  
Analysis Process ◽  
Home Construction ◽  
Price Analysis ◽  
Line Of Balance ◽  
The Impact ◽  
Housing Units

Project is any work that has a beginning and ending, consisting of several jobs/activities that must be carried out in a certain order. Contractors typically use the Gantt Chart Method in scheduling home construction projects so that it is difficult to know the impact caused by the late completion of work on scheduling the entire project. The purpose of this study is to determine the time needed to complete two housing units using the Precedence Diagram Method and the Line of Balance Method. The data used in this research are the dependency relationship between activities, time schedule, cost analysis plan (RAB), and SNI unit price analysis. The analysis process carried out in this study is to calculate the time needed to complete two housing units using two methods, namely the Precedence Diagram Method and the Line of Balance method. The results of this study indicate the time needed to build two housing units using the Precedence Diagram Method 7 days faster than using the Line of Balance Method.

A scheduling methodology for dealing with uncertainty in construction projects

2011 ◽  
Vol 28 (8) ◽  
pp. 1064-1078 ◽  
Author(s):  
Maria Elena Bruni ◽  
Patrizia Beraldi ◽  
Francesca Guerriero ◽  
Erika Pinto
Keyword(s):  
Construction Projects ◽  
Quantitative Methodology ◽  
Project Schedule ◽  
Deterministic Method ◽  
Content Type ◽  
Probabilistic Information ◽  
Analysis Process ◽  
On Line ◽  
Schedule Reliability ◽  
The Impact

PurposeThe purpose of this paper is to address the problem of scheduling under uncertainty in construction projects. The existing methods for determining a project schedule are based on assumption of complete knowledge of project parameters; but in reality there is uncertainty in construction projects, deriving from a multitude of context‐dependent sources and often provided as outcome of a risk analysis process. Thus, classical deterministic analysis might provide a schedule which is not sufficiently protected against possible disruptions.Design/methodology/approachA quantitative methodology is developed for planning construction projects under uncertainty aimed at determining a reliable resource feasible project schedule by taking into account the available probabilistic information to produce solutions that are less sensitive to perturbations that occur on line. The methodology relies on a computer‐supported system that allows to identify, analyze and quantify the schedule reliability and the impact of possible disruptions on the duration of the project.FindingsIt is found that the proposed methodology can exploit more information about the uncertain parameters than the commonly‐used deterministic method, and it provides an improved understanding of the schedule reliability in presence of uncertainty. The schedule generated with a classical deterministic method sets a completely unrealistic planned project delivery date of about 1,250 days, with a probability around 50 per cent to be exceeded. This behavior can be very unsatisfactory for construction projects for which high penalties are usually associated to heavy due date violations.Originality/valueThis paper presents an approach for robust scheduling of construction project problem under uncertainty. We provide a tool able to support managers in developing a workable and realistic project schedule to be used as a guideline for project control and monitoring.

scholarly journals THE OPTIMIZATION OF MULTIPURPOSE BUILDING DEVELOPMENT ON PROJECT SCHEDULING USING PRECEDENCE DIAGRAM METHOD (PDM)

JOURNAL ASRO ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
Sutrisno Sutrisno ◽  
Ahmadi Ahmadi ◽  
Okol S Suharyo
Keyword(s):  
Project Scheduling ◽  
Cost Efficiency ◽  
Construction Projects ◽  
Critical Path ◽  
Current Development ◽  
Diagram Method ◽  
Total Cost ◽  
Optimal Duration ◽  
Implementation Costs ◽  
The Impact

ABSTRACT The current development of construction projects lead to construction projects being more complex and complicated. The success or failure of a project can be due to inadequate planning and less effective controls, resulting in inefficient projects. This will result in delays, lower quality, and increased implementation costs. All of those problems are expected to be overcome with Presedence diagram method by reducing the impact of delay and swelling of project cost by crashing with applied overtime. Acceleration of duration on the critical path jobs was performed. The results with PDM indicated that the optimal duration of project was 100 days with efficiency time for 20 days or equal to 16,67% and the total cost of Rp 13,060,754,232.00 with cost efficiency equal to Rp 528,158,094.00 or 3,88%. Keywords: Crashing, Controlling, Planning, PDM

scholarly journals ANALISA ANGGARAN BIAYA DANPENJADWALANPROYEK PERBAIKAN TANGGUL KALI BAKUNGDESA CENGKOK KECAMATAN TAROKAN KABUPATEN KEDIRI

2019 ◽  
Vol 2 (2) ◽  
pp. 224
Author(s):  
Johan Harmawanto ◽  
Yosef Cahyo Setianto Poernomo ◽  
Sigit Winarto
Keyword(s):  
Water Demand ◽  
Cost Estimate ◽  
Unit Price ◽  
Construction Work ◽  
Diagram Method ◽  
Public Work ◽  
S Curve ◽  
Price Analysis ◽  
The Cost ◽  
River Embankment

Bakung River is a medium to supply water demand for irrigation in Cengkok Village TarokanSubdistrict Kediri Regency. Unfortunately, the soil embankment often slides to disturb the irrigation. The writer made the cost estimate, scheduling, network, and undertaking method of improving the Bakung River embankment with river stone. The data obtained from the Department of Water Public Work (DWPW) were of technical drawings, specifications, the unit price of material, and construction work of Kediri Regency 2019. The result was analyzed to find out the unit price analysis of construction work; hence the cost analysis was made. The schedule was derived from making the cost estimate by calculating the work quantity and calculating the duration. The results were processed through MS Excel to make a bar chart, S Curve, and Precedence Diagram Method (PDM) as the network. The calculations result in IDR 914.486.100,00 and 91 workdays.Kali Bakung merupakan sarana  untuk memenuhi kebutuhan air irigasi di Desa Cengkok Kecamatan Tarokan Kabupaten Kediri. Akan tetapi keadaan tanggul Kali Bakung mengalami kerusakan dan penyediaan air irigasi menjadi terganggu. Penulis membuat analisa anggaran biaya, penjadwalan, jaringan dan metode pelaksanaan untuk perbaikan tanggul Kali Bakung dengan pasangan batu kali. Data yang diperoleh dari Dinas Pekerjaan Umum Sumber Daya Air adalah gambar teknis, spesifikasi, harga satuan upah dan bahan Kabupaten Kediri tahun 2019. Hasilnya dianalisis untuk mengetahui analisa harga satuan pekerjaan, maka dibuat rencana anggaran biaya. Jadwal berasal dari rencana anggaran biaya dengan menghitung bobot pekerjaan dan menghitung durasi. Hasilnya diproses dengan MS Excel untuk membuat bar chart, kurva S, dan Precedence Diagram Method (PDM) sebagai jaringan. Hasil perhitungan didapatkan Rencana Anggaran Biaya untuk proyek tersebut adalah Rp. 914.486.100,00 dan durasi pelaksanaannya 91 hari.

Russian Accounting Standard (PBU) 18/02: Principles on the balance method use

2020 ◽  
Vol 23 (12) ◽  
pp. 1356-1382
Author(s):  
E.V. Olomskaya ◽  
A.A. Aksent'ev
Keyword(s):  
Balance Method ◽  
Deferred Taxes ◽  
Accounting Standard ◽  
Scientific Methods ◽  
The Public ◽  
General Scientific ◽  
The Impact ◽  
Original Approach ◽  
Descriptive Method ◽  
Tax Accounting

Subject. This article discusses the methodological features of Russian Accounting Standard (PBU) 18/02 Income Tax Accounting when using the balance method to account for deferred taxes. It considers whether the clarification of permanent tax differences is justified, and it analyzes in detail the features of accounting for temporary differences and offers a visual and descriptive method for determining and correlating them in accounts. Objectives. The article aims to justify the reason for linking permanent tax differences to such accounting categories as Income and Expenses. It also aims to develop a methodological toolkit that simplifies the perception of the balance method and demonstrates the procedure for determining temporary differences. Methods. For the study, we used the methods of analysis, synthesis, observation, comparison, and other general scientific methods. Results. The article justifies the clarification of permanent differences from the position of accounting categories. It offers an original approach that helps visually classify temporary differences. The formalization of the balance method helped identify the logic of its reflection in accounting statements. Conclusions and Relevance. To ensure that accounting is not distorted due to the impact of taxation, it is necessary to develop a unified conceptual framework, as well as develop existing methods and introduce new ones that do not contradict the public concept of interaction between accounting and tax accounting. The research results are intended for training, scientific and practical activities of specialists in the field of accounting and audit, as well as students studying under this program, in order to study the features of applying the balance method for accounting for deferred taxes.

Investigation of Cost-Influencing Factors Potentially ‎Controllable by Main Contractors in Construction Projects in ‎Iraq

2020 ◽  
Vol 38 (7A) ◽  
pp. 1069-1076
Author(s):  
Layth T. Ali ◽  
Raid S. Abid Ali ◽  
Zeyad S. M. Khaled
Keyword(s):  
Construction Projects ◽  
Project Managers ◽  
Cost Overrun ◽  
Public And Private ◽  
Importance Index ◽  
Labor Recruitment ◽  
Supply Planning ◽  
Major Factors ◽  
And Control ◽  
The Impact

Cost overrun in construction projects is a common phenomenon in Iraq. This might occur due to diversity of factors. This study aims to identify the factors influencing construction projects cost that are potentially controllable by main contractors. A field study through a questionnaire survey was directed to a sample of related Iraqi professional engineers from general contracting companies at both public and private sectors. Their opinions on the impact and frequency of each factor were investigated. The questionnaire offered (59) factors classified in (8) categories namely; legislations, financial and economic, design, contractual, site management, material, labor and equipment. The factors were ranked according to the highest Relative Importance Index (RII). The study revealed (10) major factors that are potentially controllable by main contractors namely; labor productivity, sub-contractors and suppliers performance, equipment productivity, site organization and distribution of equipment, experience and training of project managers, scheduling and control techniques, planning for materials supply, planning for equipment supply, materials delivery and planning for skilled labor recruitment. Recommendations to aid contractors and owners in early identification of these factors are also included in this study.

The Impact of Terrorism on Construction Industry in Iraq

2015 ◽  
Vol 3 (2) ◽  
pp. 69-84
Author(s):  
Wadhah Amer Hatem ◽  
Samiaah M. Hassen Al-Tmeemy
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Historical Data ◽  
Terrorist Attacks ◽  
Construction Sector ◽  
Statistical Procedures ◽  
Qualitative Approaches ◽  
Suicide Attacks ◽  
The Face ◽  
The Impact

     Suicide attacks, bombings, explosions became the part of daily life in Iraq. Consequently, the threat of terrorism put the Iraqi construction sector in the face of unique and unusual challenges that not seen on other countries. These challenges can have extensive impact on construction projects. This paper seeks to examine the impact of the terrorist attacks on construction industry and determine the extent to which the impact of terrorism on construction projects in terms of cost, schedule, and quality. This study adapted quantitative and qualitative approaches to collect data using questionnaire survey and interviews, as well as historical data. The study focused on projects that have been the target of terrorist strikes in Diyala governorate. A variety of statistical procedures were employed in data analysis. The results revealed the extent to which terrorist attacks impact construction projects in terms of cost, time, and quality. The results of this study will enhance the awareness of all construction parties to the impact of the terrorist attacks against construction projects. Eventually, this can develop a risk management assessment and assist contractors to properly protect projects and buildings to minimize injuries and fatalities in the event of terrorism.

scholarly journals Assessing Architecture-and-Landscape Integration as a Basis for Evaluating the Impact of Construction Projects on the Cultural Landscape of Tourist Seaside Resorts

Land ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 17
Author(s):  
Wojciech Bal ◽  
Magdalena Czalczynska-Podolska
Keyword(s):  
Construction Projects ◽  
Cultural Landscape ◽  
Negative Impact ◽  
Residential Buildings ◽  
Evaluation Criteria ◽  
Development Project ◽  
Clear Trend ◽  
Original Culture ◽  
Construction Plans ◽  
The Impact

The coastline of Western Pomerania has natural and cultural assets that have promoted the development of tourism, but also require additional measures to ensure the traditional features and characteristics are protected. This is to ensure that new developments conform to a more uniform set of spatial structures which are in line with the original culture. Today, seaside resorts are characterized by a rapid increase in development with a clear trend towards non-physiognomic architectural forms which continually expand and encroach on land closer to the coastline. This results in a blurring of the original concepts that characterized the founding seaside resort. This study evaluates 11 development projects (including a range of hotels, luxury residential buildings and hotel suites) built in 2009–2020 in the coastal area of Western Pomerania. An assessment of architecture-and-landscape integration for each development project was made, using four groups of evaluation criteria: aesthetic, socio-cultural, functional and locational factors. The study methodology included a historical and interpretative study (iconology, iconography, historiography) and an examination of architecture-and-landscape integration using a pre-prepared evaluation form. Each criterion was first assessed using both field surveys and desk research (including the analysis of construction plans and developer materials), and then compared with the original, traditional qualities of the town. This study demonstrates that it is possible to clearly identify the potential negative impact of tourism development on the cultural landscape of seaside resorts, and provides recommendations for future shaping, management and conservation of the landscape.

scholarly journals A Simulation Model of Construction Projects Executed in Random Conditions with the Overlapping Construction Works

2021 ◽  
Vol 13 (11) ◽  
pp. 5795
Author(s):  
Sławomir Biruk ◽  
Łukasz Rzepecki
Keyword(s):  
Simulation Model ◽  
Technological Process ◽  
Construction Projects ◽  
Working Time ◽  
Simulation Studies ◽  
Construction Methods ◽  
The Impact ◽  
Construction Works

Reducing the duration of construction works requires additional organizational measures, such as selecting construction methods that assure a shorter realization time, engaging additional resources, working overtime, or allowing construction works to be performed simultaneously in the same working units. The simultaneous work of crews may affect the quality of works and the efficiency of construction processes. This article presents a simulation model aimed at assessing the impact of the overlap period on the extension of the working time of the crews and the reduction of a repetitive project’s duration in random conditions. The purpose of simulation studies is to provide construction managers with guidelines when deciding on the dates of starting the sequential technological process lines realized by specialized working crews, for sustainable scheduling and organization of construction projects.

scholarly journals Risk analysis and strategic planning on bridge construction works at the toll road procurement projects in Central Java Province

2018 ◽  
Vol 49 ◽  
pp. 02020
Author(s):  
Hery Suliantoro ◽  
Nurul Fitriani ◽  
Bagus Hario Setiadji
Keyword(s):  
Avoidance Response ◽  
Construction Projects ◽  
Construction Project ◽  
Weather Forecast ◽  
Development Project ◽  
Response Strategy ◽  
Bridge Construction ◽  
Risk Response ◽  
Toll Road ◽  
The Impact

Risk is a condition caused by uncertainty. Risks will occur on any construction project, including bridge construction projects. Efforts that can be taken to minimize the impact of these risks are to engage in risk management activities. This research was conducted on bridge construction work on toll road procurement project in Pejagan-Pemalang, Pemalang-Batang and Salatiga-Kertasura. The purpose of this research is to analyze the risk of bridge development project in toll road project using Risk Breakdown Structure (RBS) method and then the result as database in discussing risk response strategy. The bridge construction project has 36 risks that are divided into six groups: materials and equipment, design, human resources, finance, management, nature and environmental conditions. Bad weather risks are the higest risk and seasonal risk causing temporary work stoppages. This risk-response strategy is avoidance. Short-term avoidance response strategy is to add shift workers, install tents and add additives in the acceleration of the process of maturation of concrete. The long-term avoidance response strategy is to evaluate and rearrange the work schedule by considering the weather forecast report.

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