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 Methodology of Planning the Course of the Cumulative Cost Curve in Construction Projects

2020 ◽  
Vol 12 (6) ◽  
pp. 2347
Author(s):  
Jarosław Konior ◽  
Mariusz Szóstak
Keyword(s):  
Construction Projects ◽  
Construction Project ◽  
Cost Curve ◽  
Cumulative Cost ◽  
Implementation Time ◽  
S Curve ◽  
Real Costs ◽  
Over Time ◽  
Construction Works

Appropriate planning and effective monitoring of the execution of construction projects is important with regard to their successful sustainment of implementation. Time and cost are key elements that determine the success or failure of construction projects. The obtaining of a rational S-curve course before the start of a construction project that reflects reality is important for all the participants involved in implementing an investment task. The article proposes an original methodology for planning the course of the cumulative cost curve in construction projects. It uses a method of shaping the S-curve, which is well-known in both literature and practical approaches. On the basis of the authors’ own research carried out in a homogeneous research group of hotel facilities, the areas of the curve for the correct planning of costs in construction projects were designated, which determine the boundaries of the predicted costs accumulated over time. The data for the development of the authors’ research methodology is the result of the authors’ own experience and professional work. The authors carried out Bank Investment Supervision in the years 2006–2019 on behalf of the banks that grant investment loans for non-public contracts. Knowing the total cost and duration of the planned construction project, which were determined on the basis of project documentation, cost estimates, and also their own database regarding planned and completed deadlines and budgets of similar investments, 6th degree polynomials of the real costs of the construction works were determined. This approach enabled the correct planning of costs over time and the determination of planned monthly amounts of construction works to be executed.

scholarly journals Research on Methods to Increase the Effectiveness of Construction Site Management

2017 ◽  
Vol 6 (3) ◽  
Author(s):  
Xi Zhang
Keyword(s):  
Scale Development ◽  
Internal Structure ◽  
Construction Projects ◽  
Quality Standard ◽  
Status Quo ◽  
Construction Site ◽  
Construction Process ◽  
Site Management ◽  
Development Status ◽  
Construction Works

<p>The development of architectural industry has promoted construction’s scale development, and the internal structure is also getting more and more complicated, the development status quo of construction works often decides the increased difficulty of construction, therefore, in order to ensure the effectiveness of the overall construction quality, there is a need to adopt reasonable measures to increase the quality standard of construction site management during construction process, to ensure that construction projects can be completed successfully. This article had made specific discussions regarding methods to increase the effectiveness of construction site management, in hope to provide practical references for specific works in the future.</p>

scholarly journals Identification of geodetic risk factors occurring at the construction project preparation stage

2019 ◽  
Vol 9 (1) ◽  
pp. 14-17 ◽  
Author(s):  
Magdalena Kowacka ◽  
Dariusz Skorupka ◽  
Artur Duchaczek ◽  
Paweł Zagrodnik
Keyword(s):  
Risk Factors ◽  
Construction Projects ◽  
Expert Knowledge ◽  
Construction Project ◽  
Road Construction ◽  
Construction Process ◽  
The Road ◽  
Initial Stage ◽  
Preparation Stage

AbstractThe work contains information on the implementation of surveying works in the road construction process. The aim of the research was to identify geodetic risk factors occurring at the stage of preparation of a construction project, the presence of which can greatly disrupt the undertaking such as the road construction. The research was carried out on the basis of expert knowledge, documentation obtained from various road construction projects and the analysis of disturbances at the initial stage of works.

scholarly journals SIMULATION OF BRIDGE CONSTRUCTION WORKS: AN EXPLORATORY STUDY

2014 ◽  
Vol 1 (1) ◽  
Author(s):  
Fahimeh Zaeri ◽  
James Olabode Bamidele Rotimi
Keyword(s):  
Exploratory Study ◽  
Construction Projects ◽  
Resource Constraints ◽  
Discrete Elements ◽  
Bridge Construction ◽  
Complex Interactions ◽  
Simulation Based ◽  
Construction Operation ◽  
Construction Works

Bridge construction projects are associated with uncertainties partly due to sequencing issues, logistics, interactions, and resource constraints. Their construction is mostly cyclic and repetitive, yet complex, requiring innovative approaches to cope with its management. Construction projects planners seek methods to enable them to schedule bridge construction projects in consideration of these constraining factors. The main objective of this research is to develop a concept of a simulation-based modeling approach. It aimed to decide which data in real systems are important for the modeling of an operation, and in which way they must be gathered to help planners approach a proper simulation-based schedule. A case study project based in New Zealand was selected for this paper. It focuses on developing a resource-based model of bridge construction using a launching-girder construction method, taking into account the complex interactions among the project’s components. The discrete elements within the project and steps taken to develop a model are described in this paper. The study enhances knowledge on the applicability of simulation in repetitive construction operation, which in turn can provide more realistic models for scheduling progress.

scholarly journals Challenges in the Management of IBS Construction Projects

2018 ◽  
Vol 3 (9) ◽  
pp. 37 ◽  
Author(s):  
Izatul Laili Jabar ◽  
Faridah Ismail
Keyword(s):  
Open Access ◽  
Cost Saving ◽  
Construction Projects ◽  
Publishing House ◽  
Construction Site ◽  
Construction Process ◽  
High Quality ◽  
Quality Cost ◽  
International Publishing ◽  
Open Access Article

IBS application had claimed to offer a faster construction, high quality, cost saving, cleaner and safer construction site. However, several challenges in management during the construction phase had been identified by researchers. This paper aims to analyze the challenges and issues arise in managing IBS construction projects. The challenges and issues identified can be categorized into pre-construction, construction and post-construction phases. Categorizing the challenges and issues will help to increase the contractor's understanding and help them to be prepared in handling the situation that they may encounter during the project phases.Keywords: Issues, construction phases, construction process, project management.eISSN 2398-4279 © 2018. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia.

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

Fuzzy Analytic Hierarchy in Project Risk Management - New Stadium Construction Project in Weifang City

2011 ◽  
Vol 243-249 ◽  
pp. 6362-6368
Author(s):  
Yan Zhang ◽  
Chang Jiang Liu
Keyword(s):  
Risk Management ◽  
Project Management ◽  
Construction Projects ◽  
Large Scale ◽  
Construction Project ◽  
Construction Project Management ◽  
Analytic Hierarchy ◽  
Project Risk ◽  
Management Case Study

In the field of engineering and construction, unqualified construction quality, time delays, cost more than expected phenomena to occur. Because of these characteristics such as its large-scale construction projects, long cycle, the production of single and complex, there is greater risk than the production of general products, the risk increases the difficulty of construction project management, operating costs and the possibility of potential losses, therefore, risk management emerged and become an increasingly important integral part of project management. In this paper, fuzzy analytic hierarchy be used to construction project risk assessment, and to order the sort of each risk in order to prevent significant risks. On an actual project - the new stadium construction in Weifang City risk management case study, the reduction of risk of project failure is expected, but also the project is hoped for other industries to provide some reference for risk management.

scholarly journals The Influence of Risk Management on Construction Project Performance: A Case Study.

2018 ◽  
pp. 936-942
Author(s):  
Mazurina Mohd Ali ◽  
Sakinah Zahra Norman ◽  
Erlane K. Ghani ◽  
Noor Hasniza Haron
Keyword(s):  
Risk Management ◽  
Construction Projects ◽  
Management Practices ◽  
Management Practice ◽  
Methodological Approach ◽  
Construction Project ◽  
Project Performance ◽  
Time Cost ◽  
Schedule Delay

Risk Management is recognized as an important exercise that creates value to a project and improves project performance. Time, cost and quality are the primary measures of a project performance in this industry. The success or failure in any construction project can be monitored through the attainment of these primary measures. Notably, Malaysian construction industry is considered as one of the important industries that positively contribute to the increase of Gross Domestic Product and subsequently the growth of the country’s economic development. Unfortunately, this industry suffers poor performance in which it leads to failure in accomplishing effective time, cost and quality performance. Most construction projects face a schedule delay, cost overrun and are poor in product quality. Thus, the aim of this study is to determine the influence of risk management on construction project performance of Malaysian companies based on these three primary measures. The degree of diffusion of risk management practice in the chosen construction project in Malaysia is also examined. The methodological approach exploited in this study is a case study approach involving analysis of documented data and face-to-face interviews with key players that hold different roles and responsibilities. They include a director, project managers, finance managers, contract managers and quantity surveyor managers. The results demonstrate that adopting effective risk management practices positively impacts project performance thus leading to project success. Nevertheless, the lack of knowledge and poor communication of risk management practices in construction projects contribute to the weak implementation of an effective and systematic risk management practices in Malaysia.

scholarly journals Construction Process Duration Predicted by Statistical Method

2021 ◽  
Vol 1203 (3) ◽  
pp. 032135
Author(s):  
S. Smugala ◽  
D. Kubečková
Keyword(s):  
Statistical Methods ◽  
Construction Projects ◽  
Labour Productivity ◽  
Probabilistic Methods ◽  
Main Task ◽  
Construction Process ◽  
Evaluation Of Performance ◽  
Probability Evaluation ◽  
Lower Limits

Abstract Many construction projects today are planned and managed using computer technology. An integral part of the management of these projects is sophisticated software, which includes statistical probabilistic methods. The main task in this area is direct verification of the validity of planned labour productivity values during the construction process according to the recorded average performance values. Using selected statistical methods and analyses, a case study can document this type of undertaking, for example, in a selected masonry process in which the upper and lower limits of performance, i.e. the optimistic and pessimistic bounds, may be calculated with 95% probability. Evaluation of these performance parameters in the construction software used for this study showed a difference in time of 11 days at the end of the process. The figures indicated a 9.6% and 14.3% decrease in labour productivity, respectively, for the optimistic and pessimistic values compared to the construction software ’ s planned values. Repeated evaluation of performance can aid in improving labour productivity and attaining project milestones and subsequent construction deadlines during the construction process. This paper aims to confirm or refute this theoretical balance using probabilistic statistical methods and to emphasize the importance of statistical analysis in the real construction process with the use of the software.

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