THE COST OBTAINED BY APPLYING PRECEDENCE DIAGRAM METHOD TOWARD THE TIME OPTIMIZATION ON BUILDING DEVELOPMENT PROJECTS

Minangkabau International Airport has one apron and one hangar. Apron has 7 parking stands with number of parking stand are 1, 2, 3, 4, 5, 6A, and 7. Parking stands 1 and 7 are dedicated to light aircraft. Parking stand 2 is devoted to International flights. The existence of parking 1 and 7 is less than optimal because the type of light aircraft rarely operates. If there is a peak hour the number of aircraft that will be parked in the apron is less able to be served based on the available parking stand so that the aircraft is often held at the alpha taxiway, this affects the passenger's time value and the cost value for the airline. The purpose of this research is to analyze the optimum apron capacity at Minangkabau International Airport, Padang. The research method is done through parking stand analysis on traffic arrangement in movement area through description of parking index analysis, parking duration, and parking accumulation at peak hour compared to available apron capacity and determined slot time. Optimization of aircraft parking (apron) Minangkabau international airport in Padang can be done with the reduction of parking booth from 7 to 6 with the dimensions of medium aircraft, and emphasize the airline operators to remain consistent on the slot time set or propose revision of slot time at spare tim

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‘We’ll Help Ourselves, but What’s in It for Us?’ Conflict, Development and Social Mobility among Roma in Romania

Slovenský národopis / Slovak Ethnology ◽

10.2478/se-2020-0021 ◽

2020 ◽

Vol 68 (4) ◽

pp. 365-378

Author(s):

Ana Ivasiuc

Keyword(s):

Social Mobility ◽

World Bank ◽

Local Level ◽

Development Project ◽

Language Teachers ◽

Development Projects ◽

Strategic Group ◽

Related Development ◽

Upward Social Mobility ◽

The Cost

AbstractRoma-related development and policy discourse often represents the Roma development ‘subjects’ as disempowered victims. Against the pervasiveness of such narratives, a close look at the local level conflicts arising during the implementation of a World Bank development project in destitute Roma communities from Romania lays bare the strategies of unassisted social mobility in which a group of Roma engage. Not large or well-defined enough to be constituted into a real ‘class’ in sociological terms, this strategic group is made up of Roma civil servants (mediators, local experts, Romani language teachers) who negotiate their engagement in development projects on their own terms and use the material and immaterial resources that projects offer to enact their own upward social mobility. Often, though, this comes at the cost of a growing socio-economic gap between themselves and the most destitute parts of Roma communities, which complicates their involvement in development projects. The article underlines the necessity of taking into account both the strategies of unassisted social mobility of Roma development brokers, and the internal power imbalances that the development apparatus inevitably ends up producing in Roma communities.

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KAJIAN PENGGUNAAN BETON PRACETAK PADA PROYEK PEMBANGUNAN RUSUNAWA (Studi Kasus Pembangunan Rusunawa POLDA JATIM-Surabaya)

PROKONS Jurusan Teknik Sipil ◽

10.33795/prokons.v8i1.59 ◽

2014 ◽

Vol 8 (1) ◽

pp. 65

Author(s):

Sugiharti ,

Keyword(s):

Cost Efficiency ◽

Precast Concrete ◽

Diagram Method ◽

Beam Columns ◽

Work Volume ◽

Cast Concrete ◽

S Curve ◽

The Cost ◽

Work Structure ◽

Conventional Systems

The use of precast concrete is planned on work structure tie beam, columns, beams, and slab for precast systems have the advantage in terms time and cost efficiency compared to conventional systems (cast in place) to reach the targets that have been planned by the government.The purpose is to find out the cost efficiency and time usage precast. The cost analysis was obtained from the multiplication of bill of quantity and the work volume. To find a network using the Precedence Diagram Method (PDM) which was processed through Microsoft Project 2007 software then arranged in Bar Chart. The Bar Chart was arranged in the S-Curve with Microsoft Excel 2007 software. From the calculations, total project cost is IDR 13,300,074,303.07 with the cost efficiency IDR 604,137,428.00 or 4.34% less than the conventional method and the duration is 214 days with the time efficiensy 86 workdays or 28.67% quicker than the conventional method.Keywords: pre-cast concrete, cost, time, efficiency

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Efficient Procedure to Scheduling Construction Projects at the Planning Phase

Baltic Journal of Real Estate Economics and Construction Management ◽

10.2478/bjreecm-2019-0004 ◽

2019 ◽

Vol 7 (1) ◽

pp. 60-80 ◽

Cited By ~ 1

Author(s):

Matiwos Tsegaye

Keyword(s):

Cost Estimation ◽

Construction Projects ◽

Cost Optimization ◽

Efficient Procedure ◽

Start Date ◽

Time Optimization ◽

Planning Phase ◽

Short Period ◽

The Cost ◽

Construction Schedule

Abstract The construction industry is one of the most important activities that contributes towards the economic growth of any nation. However, the sector has been experiencing problems of cost and time overruns, particularly the problems are significant for the lowest-bid awarded construction projects in the developing countries where inappropriate planning is reported to be one of the major causes. Thus, the paper aims at developing an integrated scheduling approach for construction projects during the planning phase from a project owner’s perspective. The proposed approach integrates cost estimation and schedule in light of practical activity precedence and mathematical cost optimization using different project commencement dates. The study has shown that cost and time optimization model could yield impractical results unless double precedence relations (start-to-start plus finish-to-finish) are imposed between some activities such as trench excavation and pipe laying. It has also demonstrated that the cost and time budgeted during the planning phase would substantially deviate from actual if the planned construction start date slips from the plan, particularly for short period projects. The proposed approach demonstrated in the paper can sufficiently allow planning engineers to develop a comprehensive construction schedule so that the cost and time overruns in the lowest-bid awarded construction projects can be reduced. The paper provides empirical insights into how a robust construction schedule is developed from an owner’s perspective. Cost-time optimization and risk analysis results obtained from manual computation might reduce the reasonable accuracy of the desired cost and schedule integration unless each activity is assigned its own calendar.

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KEY PROBLEMS OF INTERACTION BETWEEN ORGANIZATIONS IN IMPLEMENTATION JOINT PROJECTS ON RESEARCH AND DEVELOPMENT

Vestnik Universiteta ◽

10.26425/1816-4277-2019-1-124-127 ◽

2019 ◽

pp. 124-127

Author(s):

Yu. Kafiyatullina ◽

E. Panfilova

Keyword(s):

Research And Development ◽

Innovation Activity ◽

Development Projects ◽

Joint Research ◽

Effective Implementation ◽

Technological Gap ◽

Current State ◽

State Of Research ◽

The Cost ◽

Advanced Development

Innovative activity of domestic organizations continues to remain low: from 2014 to 2016, there was a reduction in the cost of technological innovations, organizations prefer to import foreign equipment in order to increase the innovation component of the products sold. The way out of the situation is to conduct joint research and development projects, according to the results of which Russian organizations will have the rights to advanced development, acquire competitive competences, which will later allow our country to reduce the technological gap. The article analyzes the current state of research and development, innovation activity, the level of development of digital technologies in our country, which allows to outline the range of problems that hinder the effective implementation of joint research and development projects.

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Practical Time Optimization of DSP Program for High-frequency Applications

Journal of Physics Conference Series ◽

10.1088/1742-6596/2095/1/012005 ◽

2021 ◽

Vol 2095 (1) ◽

pp. 012005

Author(s):

Zhuyu Xun ◽

Hongfa Ding ◽

Zhou He

Keyword(s):

Execution Time ◽

High Frequency ◽

Rapid Development ◽

Power Conversion ◽

High Frequency Power ◽

Memory Space ◽

Time Optimization ◽

The Cost ◽

Frequency Power

Abstract The rapid development of the high frequency power conversion techniques makes great demands on the methods that can reduce the execution time of the program effectively. This paper is aiming at reducing the execution time of the program in several aspects such as sampling, complex expressions, and so on. As one of the most widely applied methods, reducing the execution time of the program at the cost of the memory space is adopted in this paper. Furthermore, in order to confirm the feasibility and superiority of programs that are proposed in this paper, they are compared with other programs that can realize the same function in terms of the execution time.

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A SCHEDULING ON IMPLEMENTATION OF ISDB PROJECT JEMBER UNIVERSITY WITH PRECEDENCE DIAGRAM METHOD

Jurnal Rekayasa Sipil dan Lingkungan ◽

10.19184/jrsl.v3i2.11089 ◽

2019 ◽

Vol 3 (2) ◽

pp. 145

Author(s):

Icha Tatrisya Derka ◽

Hernu Suyoso ◽

Anik Ratnaningsih

Keyword(s):

Natural Science ◽

Secondary Data ◽

Development Projects ◽

Food Technology ◽

Construction Work ◽

Development Bank ◽

Diagram Method ◽

Dependency Relationship ◽

S Curve ◽

Bill Of Quantity

Scheduling is important, because of the time limit, so the implementation of project activities must be planned and timely. The Integrated Laboratory for Natural Science and Food Technology building is one of the development projects of the IsDB (Islamic Development Bank), in the Jember University. In this study, the schedule will be carried out using the PDM method (Precedence Diagram Method), assisted by the Microsoft Project. The PDM is a working network with a clear dependency relationship and can be used on projects that have overlapping activities between tasks to another, PDM can show critical trajectory. Secondary data needed in the form of soft-drawings, BoQ (Bill of Quantity), City of Jember AHS 2018 and S curve. There are 30 jobs included in the critical track including 14 jobs in construction work, 11 jobs in architectural work and 5 jobs in outside work. The results of the study indicate that the duration of the construction Building is 242 days, or 8 months 16 days. Penjadwalan merupakan hal yang penting, karena adanya batasan waktu, maka pelaksanaan kegiatan proyek harus tepat rencana dan tepat waktu. Gedung Integrated Laboratory for Natural Science and Food Technology merupakan salah satu pembangunan proyek IsDB (Islamic Development Bank), yang ada di lingkungan Universitas Jember. Pada penelitian ini, akan dilakukan penjadwalan menggunakan metode PDM (Precedence Diagram Method) dibantu dengan Microsoft Project. PDM merupakan jaringan kerja dengan hubungan ketergantungan yang jelas dan dapat digunakan pada proyek yang mempunyai kegiatan tumpang tindih antar satu pekerjaan ke pekerjaan lainnya, serta dapat menunjukkan lintasan kritis. Data yang dibutuhkan berupa data sekunder yaitu gambar rencana, BoQ, AHS Kota Jember 2018 dan kurva S. Terdapat 30 pekerjaan yang termasuk dalam lintasan kritis meliputi 14 pekerjaan di pekerjaan strukur, 11 pekerjaan di pekerjaan arsitektur serta 5 pekerjaan di pekerjaan luar bangunan. Hasil penelitian menunjukkan bahwa jangka waktu pelaksanaan pembangunan Gedung Integrated Laboratory for Natural Science and Food Technology adalah selama 242 hari, atau 8 bulan lebih 16 hari.

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Analysis and implementation of the impact of change: application to heterogeneity algorithms in enterprise architecture

International Journal of Electrical and Computer Engineering (IJECE) ◽

10.11591/ijece.v10i1.pp377-386 ◽

2020 ◽

Vol 10 (1) ◽

pp. 377

Author(s):

Jihane Lakhrouit ◽

Karim Baïna

Keyword(s):

Software Engineering ◽

Enterprise Architecture ◽

Development Projects ◽

Software Product ◽

Change Of Measures ◽

Cost Of Production ◽

The Cost ◽

The Impact ◽

Scientific Fields

Measurements play an important role in many scientific fields in general and intheanalysisofenterprisearchitectureinparticular.In software engineering, the measures are used to control the quality of the software product and better manage development projects to control the cost of production.In this article we proposed firstly models and measures to evaluate and analyze the complexity of the enterprise architecture and especially the heterogeneity of components and relationships, and secondely we developed a model to automatically detect the change of measures and their impact on enterprise architecture.

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OPTIMALISASI BIAYA DAN WAKTU PELAKSANAAN PROYEK PEMBANGUNAN PERUMAHAN CITRALAND PALU MENGGUNAKAN METODE PROGRAM EVALUATION AND REVIEW TECHNIQUE (PERT) – CRITICAL PATH METHOD (CPM)

JURNAL ILMIAH MATEMATIKA DAN TERAPAN ◽

10.22487/2540766x.2018.v15.i2.11353 ◽

2018 ◽

Vol 15 (2) ◽

pp. 197-208

Author(s):

N M E Wardani ◽

S Musdalifah ◽

D Lusiyanti

Keyword(s):

Critical Path ◽

Project Work ◽

Development Projects ◽

Design Development ◽

Critical Path Method ◽

Great Opportunity ◽

Total Cost ◽

Normal Completion ◽

The Cost ◽

The Town

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%

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Project Scheduling Analysis Using the Precedence Diagram Method (PDM) Case Study: Surabaya’s City Outer East Ring Road Construction Project (Segment 1)

International Journal of Engineering, Science and Information Technology ◽

10.52088/ijesty.v1i2.56 ◽

2021 ◽

Vol 1 (2) ◽

pp. 53-61

Author(s):

Syahrur Romadhona ◽

Fredy Kurniawan ◽

Julistyana Tistogondo

Keyword(s):

Critical Path ◽

Road Construction ◽

Indirect Costs ◽

Working Hours ◽

Concrete Surface ◽

Diagram Method ◽

Ring Road ◽

The Difference ◽

The Cost

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.

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