scholarly journals Toward Reducing Construction Project Delivery Time under Limited Resources

2021 ◽  
Vol 13 (19) ◽  
pp. 11035
Author(s):  
Hossam H. Mohamed ◽  
Ahmed H. Ibrahim ◽  
Asmaa A. Soliman
Keyword(s):  
Construction Projects ◽  
Resource Constraints ◽  
Optimization Problems ◽  
Cost Optimization ◽  
Construction Project ◽  
Limited Resource ◽  
Project Managers ◽  
Project Schedule ◽  
Java Program ◽  
Optimizing Model

One of the most vital construction project aspects is to complete a project in minimum time restricted to the time–cost trade-off. Overlapping activities’ planning and their impact on the project under limited resource constraints should be considered. This study aims to develop a model for optimizing the project schedule and cost regarding overlap activities and their impacts. This study reviews previous studies on changes in past activities likely to produce additional reworking of subsequent activities. In addition, an AHP model is developed to assess the reworking time of subsequent activities based on possible changes in previous activities. In addition, five realistic construction projects are applied. Finally, an optimizing model is developed for optimizing project time and cost using overlapping techniques by using the Java program. The results indicate that the proposed model can be used by project managers easily for solving time and cost optimization problems. In addition, it can be updated to continuously improve its functionality. Finally, it can be updated later to support AI for finding better solutions.

scholarly journals Scheduling Optimization of Prefabricated Construction Projects by Genetic Algorithm

2021 ◽  
Vol 11 (12) ◽  
pp. 5531
Author(s):  
Linlin Xie ◽  
Yajiao Chen ◽  
Ruidong Chang
Keyword(s):  
Project Scheduling ◽  
Construction Projects ◽  
Resource Constraints ◽  
Construction Project ◽  
Engineering Application ◽  
Project Schedule ◽  
Scheduling Optimization ◽  
Implementation Method ◽  
Traditional Construction ◽  
Construction Project Scheduling

Prefabricated buildings are the direction of the future development of the construction industry and have received widespread attention. The effective execution of prefabricated construction project scheduling should consider resource constraints and the supply arrangement of prefabricated components. However, the traditional construction resource-constrained project scheduling implementation method cannot simultaneously consider the characteristics of the linkage between component production and on-site assembly construction. It cannot also fully adapt to the scheduling implementation method of the prefabricated construction projects. It is difficult to work out a reasonable project schedule and resource allocation table. In order to determine the relevant schedule parameters that can reflect the actual construction situation of the prefabricated building and meet the scheduling requirements of the prefabricated project, this study proposes a prefabricated construction project scheduling model that considers project resource constraints and prefabricated component supply constraints. Additionally, it improves the design of traditional genetic algorithms (GAs). Research results of the experimental calculation and engineering application show that the proposed project scheduling optimization model and GA are effective and practical, which can help project managers in effectively formulating prefabricated construction project scheduling plans, reasonably allocating resources, reducing completion time, and improving project performance.

scholarly journals The Importance of Communication Management Improving the Performance of Construction Project Managers in Developing Countries

2021 ◽  
Vol 56 (3) ◽  
pp. 473-484
Author(s):  
Zulkifli Lubis
Keyword(s):  
Developing Countries ◽  
Public Relations ◽  
Construction Projects ◽  
Construction Project ◽  
Project Managers ◽  
Infrastructure Development ◽  
Communication Management ◽  
The Public ◽  
Study Results

The biggest threat that results in the project not being successful is failure to build a stakeholder project. Based on research on construction projects in developing countries, the lack of communication among workers due to cultural uniformity and the uniqueness of their respective regions can become work constraints that can affect implementation performance and productivity, namely, there is a 69.61% decrease in time performance. The main objective of this research is to analyze the role of communication management in improving the performance of construction project managers in developing countries, particularly the role of construction managers in implementing a construction project. This research uses a qualitative approach and a case study method. Sampling using purposive sampling. Forum Group Discussion to see how the opinions of construction project managers in Indonesia view the importance of communication management in the success of construction projects. The study results explain that the need for Public Relations Infrastructure management plays a role in ensuring various policies and communication to the public. This is a reflection of the effective function of public relations in the implementation of infrastructure development. In carrying out the construction, the construction project manager must pay attention to communication dynamics to support the success of infrastructure development projects. Contractors and other parties involved in infrastructure development must raise awareness of the essence of effective communication in fostering trust in the public concerned with infrastructure development.

scholarly journals Generalized Resource-Constrained Critical Path Method to Improve Sustainability in Construction Project Scheduling

2020 ◽  
Vol 12 (21) ◽  
pp. 8918
Author(s):  
Kyunghwan Kim
Keyword(s):  
Construction Projects ◽  
Resource Constraints ◽  
Critical Path ◽  
Construction Project ◽  
Sustainable Construction ◽  
Prototype System ◽  
Critical Path Method ◽  
Resource Constrained ◽  
Additional Time ◽  
Multiple Resource

Delays by limited supply of resources are common in many construction projects and may cause serious monetary disputes between project participants. Since the dispute resolution may require unnecessary additional time and cost, preventing delays in advance is an important goal in sustainable construction project management. To prevent delays, a feasible plan must be implemented, which reflects limited resources and provides reliable activity information. For this purpose, this study proposes a generalized resource-constrained critical path method (eRCPM). It consists of three steps to identify resource-dependent activity relationships (resource links) based on the result of resource-constrained scheduling (RCS) under multiple resource constraints. Compared to the existing resource-constrained critical path methods, the eRCPM has the advantage of identifying resource links irrespective of the applied RCS technique because it is based on the result rather than the RCS process. Further, this study presents a Microsoft (MS) Excel-based half-automated prototype system that is linked using file export and import functions to both P6 and MS Project software packages. The detailed process of the eRCPM algorithm and the operation process of the prototype system are described using an example schedule. Through a case study, it was demonstrated that eRCPM appropriately identifies the necessary resource links and provides reliable total floats.

scholarly journals ANALISIS KUALITAS MANAJER PROYEK TERHADAP PELAKSANAAN PROYEK KONSTRUKSI (STUDI KASUS : DI DENPASAR DAN BADUNG)

2017 ◽  
Vol 5 (1) ◽  
Author(s):  
I Gde Eka Dharsika ◽  
IN Budiartha ◽  
I W Yansen
Keyword(s):  
Construction Projects ◽  
Linear Regression Analysis ◽  
Construction Project ◽  
Project Managers ◽  
Project Manager ◽  
Project Work ◽  
Dominant Factor ◽  
Labor Costs ◽  
A Value

Abstract: Problems in construction projects caused by the extension of working time and an increase in labor costs. A limited ability of project management contribute to the decline in the quality of project work. The quality of project manager has an important role to smooth a construction project. Dedication in this profession requires project managers to carry out the work going according to plan. Analyzing the quality of the project manager for the implementation of construction projectsis one wayto measure the quality of a project. It needs  a right measurements way to providean accurate assessment of qualified and reliable project managers. This study aimed to obtain and analyze the factors that affect the quality of the project manager and its to construction projects.This used a sample of 45 respondents from several construction projects in the area of Badung and Denpasar during the period 2007-2012. The method used in this study is the method of multiple linear regression analysis by testing for the F-test and t-test. The results found 8 dominant factor that has a value eigen values??> 1. Sequentially, the factors that have been named are experience 41.63%,  education 9.278%, knowledge 7.240%, ability 5.088%, character 4.047%, network 3.843%, relationship communication 3.550%, confidence 3.357%. Influence the quality of the project manager on the performance fee of 51.9%, against 43.1% for quality performance, on-time performance, with a value of 57.9%. The results of this study prove that the powerful influence between the quality of the construction project manager to the implementation of construction projects.

Optimization for Limited Resource Schedule in Public Construction Project

2013 ◽  
Vol 457-458 ◽  
pp. 1639-1643
Author(s):  
Han Wen Li ◽  
Fu Zhou Luo
Keyword(s):  
Ant Colony Optimization ◽  
Construction Projects ◽  
Optimization Problem ◽  
Construction Project ◽  
Limited Resource ◽  
Ant Colony ◽  
Project Construction ◽  
Resource Condition ◽  
Universal Applicability ◽  
Public Construction

The optimization of scheduling is an important aspect of the construction project plan, the paper proposes applying improved ant colony optimization to solve the public construction projects scheduling optimization problem under limited resource condition and constructs the mathematical model of the project construction schedule optimization. Further verify the validity of the model and the improved ant colony optimization on the schedule of the optimization problem solving has universal applicability.

scholarly journals SCIENTOMETRIC REVIEW OF CONSTRUCTION PROJECT SCHEDULE STUDIES: TRENDS, GAPS AND POTENTIAL RESEARCH AREAS

2020 ◽  
Vol 26 (4) ◽  
pp. 343-363
Author(s):  
Gebrehana Derbe ◽  
Yashuai Li ◽  
Di Wu ◽  
Qiuhong Zhao
Keyword(s):  
Performance Management ◽  
Construction Projects ◽  
Construction Project ◽  
Future Research ◽  
Scientometric Analysis ◽  
Project Schedule ◽  
Document Type ◽  
Research Areas ◽  
Future Potential ◽  
Abstract Content

Scheduling plays a fundamental role in construction projects’ success and thus has drawn attention from both academic researchers and industry practitioners. A large number of research articles tend to solve emerging challenges in construction project schedule (CPS). Therefore, there is a strong need of systematic review on existing studies. In this study, a total of 332 articles were retrieved from Scopus database using title, abstract and keywords with respect to CPS and filtered by document type, language type and abstract content. In particular, science mapping approach was adopted to analyse selected journal articles. These articles were examined using three sequential processes, including bibliometric search, scientometric analysis, and in-depth qualitative discussion. It could demonstrate the most influential journals, researchers, published articles, and active countries/regions in this area. In addition, major CPS knowledge areas were identified and summarized as CPS constructability, applications of variety of CPS methods, CPS optimization models and algorithms, identification and quantification of schedule risks and uncertainties, CPS performance management, and adopting new emerging CPS technologies and methods. Furthermore, knowledge gaps and future potential research directions were also discussed in detail. Finally, a comprehensive CPS framework was proposed as a sound reference in future research.

scholarly journals The Assessment of Risk Management & Engineering Management Practices at Project Planning Phase on Performance of Construction Projects

2020 ◽  
Vol 6 (4) ◽  
pp. 1365-1375
Author(s):  
Shahid Iqbal ◽  
Nabeel Ehtisham ◽  
Syed Farqaleet K. Bukhari ◽  
Shahid Mahmood
Keyword(s):  
Risk Management ◽  
Site Selection ◽  
Construction Projects ◽  
Management Practices ◽  
Construction Project ◽  
Engineering Management ◽  
Project Planning ◽  
Project Managers ◽  
Planning Stage ◽  
The World

Project Risk management is known as an important workout for the achievement of desired objectives for the construction projects. Success in construction project is quantified by attaining its enactment in terms of project quality, project cost, project time, project safety. Construction projects in Pakistan, typically in the whole world have a high risk of being pointedly late and over budget. However, a bit of schedule and cost related risks are unavoidable in any construction project around the world. It was found out that the engineers were generally nominated earlier the design phase of any project. Due to this reason maximum projects did not get the advantage from SMEs at the planning stage of the project. This study also supports that project managers who are engineers be involved in construction projects site selection, in preliminary budget and schedule development by using good Engineering Management Practices.

scholarly journals Using meta-networks to analyse the impact of adverse random events on the time and cost of completing

2019 ◽  
Vol 28 (2) ◽  
pp. 192-202
Author(s):  
Grzegorz Śladowski
Keyword(s):  
Construction Projects ◽  
Construction Project ◽  
Dynamic Network ◽  
Single Mode ◽  
Project Schedule ◽  
Material Resources ◽  
Simulation Based ◽  
Random Events ◽  
Risk Sources ◽  
The Impact

According to the concept of a system-based approach, a construction project can be treated as a complex system composed of various elements, such as human, equipment and material resources, as well as knowledge and tasks that are mutually interlinked. In the classical approach to construction project risk assessment, the impact of the “system” in the analysis of relationships between risk sources and their consequences has so far been neglected. The concept of construction project vulnerability and its adaptability has appeared in literature in recent years. It is analysed on the basis of a project’s vulnerability to the impact of risk factors and its adaptive capacity is seen an answer to project perturbations caused by adverse random events. As a part of developing the system-based approach to analysing construction project schedule, the author further developed the concept of modelling planned construction projects with relationship meta-networks composed of four types of nodes: agents (human resources), knowledge, equipment and material resources and tasks. The author included possible deviations from the planned project’s budget in the schedule vulnerability and adaptability analysis, instead of only focusing on deviations from its completion deadline. An analysis of the occurrence of additional and replacement work was introduced by the author, which further developed the concept of the simulated evolution of such networks to include the capacity to introduce new nodes and links into their structure. Furthermore, the author used the potential of weighted meta-networks to model certain dependencies within the planned project. A simulation-based approach as a part of DNA (dynamic network analysis) was used to analyse the vulnerability and adaptability of such networks. The proposed approach was presented on the example of a renovation project performed on a historical structure. The conclusions drawn from the author’s analyses can be used to formulate construction project schedules that are less vulnerable to perturbations and are characterised by greater adaptability. In the future, the author plans to expand the analysis presented above to include dependencies in single-mode networks (e.g. in agent, resource or knowledge networks) on the meta-network of a project.

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 An Ability of WhatsApp Usage in Industrialised Building System (IBS) Construction Project

2019 ◽  
Vol 13 (04) ◽  
pp. 188
Author(s):  
Mohd Affendi Ahmad Pozin ◽  
Mohd Nasrun Mohd Nawi ◽  
Md Azree Othuman Mydin ◽  
Salman Riazi Mehdi Riazi ◽  
Ayub Ilfandy Imran
Keyword(s):  
Construction Projects ◽  
Empirical Studies ◽  
Construction Project ◽  
Effective Communication ◽  
Structured Interview ◽  
Project Managers ◽  
Project Teams ◽  
Distributed Teams ◽  
Communication Performance ◽  
Interview Methodology

In this article, we discuss about WhatsApp application practise around project managers in managing IBS construction projects. The WhatsApp application offera great advantages, especially in collecting, managing information and data in a timely manner. Previous study highlighted effective communication become as a bridge between practitioners to share a knowledge, information and integration. Unfortunately, there is still a lack of empirical studies on how efficiencies of WhatsApp application overcome the communication barriers while managing distributed project teams on construction project. Thus this study seeks to explore communication performance perceived through WhatsApp application. The semi-structured interview methodology was used to gain in-depth knowledge from several project managers who have experiences in managing construction projects virtually through WhatsApp application. The finding from this study revealed that WhatsApp application has become an effective communication channel to overcome the barriers of communication while managing distributed teams and allowing timely information sharing.

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