scholarly journals Implementing Project Schedule Metrics to Identify the Impact of Delays Correlated with Contractors

2016 ◽  
Vol 5 (1) ◽  
pp. 41
Author(s):  
Anthony Perrenoud ◽  
Kenneth Sullivan
Keyword(s):  
Construction Projects ◽  
Performance Metrics ◽  
Project Managers ◽  
Performance Measurement System ◽  
Project Schedule ◽  
Schedule Management ◽  
Additional Information ◽  
Management Processes ◽  
The University ◽  
The Impact

Schedule management reduces schedule delays while optimizing positive opportunities to the project timeline. The built industry continues to struggle to capture project metrics that will improve supply chain management. The lack of performance metrics on construction projects filters the actual project performance of the project stakeholders. Contractors can easily be blamed for schedule delays because of the nature of construction projects. A large university capital improvement organization recognizes their lack of performance information and begins implementing a performance measurement system in 2005. The university measurements focus on project impacts to cost, schedule, and quality in hopes that additional information will improve risk management processes. This article reviews the schedule impacts that contractors create within projects. Data was collected directly from both contractor and client project managers of 254 construction projects. Actual delays from contractors were found to be a small percentage of the overall project schedule delays. More than half of the delays that contractors produced were found to be correlated to the material suppliers.

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.

scholarly journals How do you measure up? Methods to assess linkage quality

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Anna Ferrante ◽  
James Boyd ◽  
Sean Randall ◽  
Adrian Brown ◽  
James Semmens
Keyword(s):  
Record Linkage ◽  
Service Use ◽  
Performance Metrics ◽  
Population Level ◽  
Additional Information ◽  
Linkage Quality ◽  
Health And Disease ◽  
The Impact ◽  
Quality Process

ABSTRACT ObjectivesRecord linkage is a powerful technique which transforms discrete episode data into longitudinal person-based records. These records enable the construction and analysis of complex pathways of health and disease progression, and service use. Achieving high linkage quality is essential for ensuring the quality and integrity of research based on linked data. The methods used to assess linkage quality will depend on the volume and characteristics of the datasets involved, the processes used for linkage and the additional information available for quality assessment. This paper proposes and evaluates two methods to routinely assess linkage quality. ApproachLinkage units currently use a range of methods to measure, monitor and improve linkage quality; however, no common approach or standards exist. There is an urgent need to develop “best practices” in evaluating, reporting and benchmarking linkage quality. In assessing linkage quality, of primary interest is in knowing the number of true matches and non-matches identified as links and non-links. Any misclassification of matches within these groups introduces linkage errors. We present efforts to develop sharable methods to measure linkage quality in Australia. This includes a sampling-based method to estimate both precision (accuracy) and recall (sensitivity) following record linkage and a benchmarking method - a transparent and transportable methodology to benchmark the quality of linkages across different operational environments. ResultsThe sampling-based method achieved estimates of linkage quality that were very close to actual linkage quality metrics. This method presents as a feasible means of accurately estimating matching quality and refining linkages in population level linkage studies. The benchmarking method provides a systematic approach to estimating linkage quality with a set of open and shareable datasets and a set of well-defined, established performance metrics. The method provides an opportunity to benchmark the linkage quality of different record linkage operations. Both methods have the potential to assess the inter-rater reliability of clerical reviews. ConclusionsBoth methods produce reliable estimates of linkage quality enabling the exchange of information within and between linkage communities. It is important that researchers can assess risk in studies using record linkage techniques. Understanding the impact of linkage quality on research outputs highlights a need for standard methods to routinely measure linkage quality. These two methods provide a good start to the quality process, but it is important to identify standards and good practices in all parts of the linkage process (pre-processing, standardising activities, linkage, grouping and extracting).

scholarly journals Method of Assessing the Risk of Implementing Railway Investments in Terms of the Cost of Their Implementation

2021 ◽  
Vol 13 (23) ◽  
pp. 13085
Author(s):  
Jan Kowalski ◽  
Mieczysław Połoński ◽  
Marzena Lendo-Siwicka ◽  
Roman Trach ◽  
Grzegorz Wrzesiński
Keyword(s):  
Construction Projects ◽  
Original Method ◽  
Project Managers ◽  
Simple Method ◽  
Construction Companies ◽  
Risk Forecasting ◽  
Specific Object ◽  
Effective Cost ◽  
The Cost ◽  
The Impact

Exceeding the approved budget is often an integral part of the implementation of construction projects, especially those where unforeseen threats may occur. Therefore, each construction investment should contain elements of risk forecasting, mainly in terms of the cost of its implementation. Only a small number of institutions apply effective cost control methods, taking into account the specifics of a given industry. Especially small construction companies that participate in the structure of the implementation of large construction projects as subcontractors. The article presents a method by which it is possible to determine, with certain probability, the final cost of railway construction investments carried out in Poland. The method was based on a reliable database of risk factors published in sources. In this article, the main presumptions of the original method are presented, which take into account the impact of potential, previously recognized, risks specific to railway investments, and enable project managers to relate them to the conditions where the implementation of a specific object is planned. The authors assumed that such a relatively simple method, supported by a suitable computational program, would encourage teams that plan to implement railway projects to use it and increase the credibility of their schedules.

FACTORS CAUSING PROBLEMS IN MANAGING CONSTRUCTION PROJECTS IN A COUNTRY UNDER MILITARY OCCUPATION: Contractors’ Perspective

2016 ◽  
Vol 05 (07) ◽  
pp. 01-07
Author(s):  
Akram Subhe Suleiman ◽  
Jafar Subhi Hardan Abahre
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Project Managers ◽  
Project Manager ◽  
Military Occupation ◽  
The Political ◽  
Clear Understanding ◽  
Team Members ◽  
Political Situation ◽  
The Impact

An exhaustive literature search revealed that not much research has been done on factors causing problems in managing a construction project in a country under military occupation like Palestine. So, it is the main goal of this research is to identify these factors which could be used by the decision makers to select the appropriate project manager who bosses the suitable skills and competencies to deal with these problems. The study is a step toward determining means to improve the effectiveness of projects through identifying project manager competencies. It is important for Palestinian construction industry to progress in terms of project success; the problems that face the project managers must be determined and identified, in order to achieve the best results with less risk. A clear understanding of such problems helps the Palestinian construction industry of finding the suitable solutions to overcome these problems. A questionnaire survey was carried out to achieve the main aim of this research. The respondents were engineers have more than 3 years in the position of project manager in the Palestinian construction industry. The survey was based on factors drawn from findings of another researches in different countries, together with special factors identified as potentially affecting Palestine. The results identified many factors created problems; they were clustered in eight groups. These groups were arranged according to respondents in descending order as follows: the political situation of Palestine, lack of consultants` technical competencies, lack of resources, insufficient planning, team members uncommitted, conflicts between departments, breakdowns in communications, and changes in goals. As a result of this study one could conclude that managing a project in Palestine is as difficult as the complication of the political situation of the country. The project manager should have a complicated mixture of skills and competencies from dealing with Israeli occupation to dealing with stakeholders to lack of resources and unclear goals. The study has recommended to the Palestinian government to improve the regulations and laws to meet the impact of closure and segmentation of the Palestine.

scholarly journals Building Sustainably: A Pilot Study on the Project Manager’s Contribution in Delivering Sustainable Construction Projects—A Maltese and International Perspective

2020 ◽  
Vol 12 (23) ◽  
pp. 10162
Author(s):  
Ruth Borg ◽  
Rebecca Dalli Gonzi ◽  
Simon Borg
Keyword(s):  
Pilot Study ◽  
Construction Projects ◽  
International Perspective ◽  
Project Managers ◽  
Added Value ◽  
Sustainable Construction ◽  
Management Processes ◽  
Optimum Position ◽  
Development Phases ◽  
Sustainable Projects

Despite ample technological advancements, the building industry is still seen as an unsustainable activity. To counteract this, building development is now being requested to be more sustainable. Due to the increasing complexity of sustainable projects’ criteria, the project manager’s role, tasked with the overall management of a building’s different development phases, is changing, becoming increasingly crucial for the attainment of pre-established sustainability goals. Based on this premise, the research presented in this paper is a pilot study set to preliminarily establish and identify a set of project management processes and supporting practices from existing literature, and gauge their significance and possible added value provided. This was done via a purposely designed questionnaire distributed locally, in Malta, and globally amongst established project managers. Notwithstanding the preliminary nature of the study some interesting results were obtained. Among the main outcomes of the study, it is observed how all respondents are very aware about sustainability issues and that their decision-making role places them in an optimum position to bring forward a sustainability agenda for a particular project. In terms of intervention, pre-construction (43%) and construction (28%) were considered to be the main stages were a project manager usually gives the highest input. However, various challenges were also highlighted by the respondents, including clients’ refusal to commit increased capital (34%), the requirement for further training (33%), and the lack of incentives aimed towards increasing the sustainability of projects (22%).

scholarly journals Onshore Oil and Gas Design Schedule Management Process Through Time-Impact Simulations Analyses

2019 ◽  
Vol 11 (6) ◽  
pp. 1613
Author(s):  
Daekyoung Yi ◽  
Eul-Bum Lee ◽  
Junyong Ahn
Keyword(s):  
Construction Projects ◽  
Oil And Gas ◽  
The Body ◽  
Management Process ◽  
Design Phase ◽  
Project Schedule ◽  
Schedule Management ◽  
Body Of Knowledge ◽  
Design Activities ◽  
Design Schedule

Korean oil and gas contractors have recently incurred significant losses due to improper engineering performance on EPC (engineering procurement and construction) projects in overseas markets. Several previous studies have verified the significant impact engineering has on EPC construction cost and project lifecycle. However, no literature has studied the time impact engineering has on EPC projects, representing a gap in the existing body of knowledge. To fill this gap, a Monte Carlo simulation was performed with the Pertmaster, Primavera risk analysis software for three sample onshore oil and gas projects. From said simulation of all major EPC critical activities, the authors found that the engineering phase is up to 10 times as impactful as the procurement and construction phases on the overall schedule duration. In assessing the engineering activities, the authors found the piping design activities to have the greatest impact on the overall schedule performance. Using these findings, the authors present a design schedule management process which minimizes the delays of project completion in EPC projects. Said process includes the following six steps: (1) Milestone management, (2) drawing status management, (3) productivity management of engineering, (4) interface management, (5) management of major vendor documents, and (6) work front management. The findings of this paper add to the body of knowledge by confirming the design phase to be the most impactful on the overall project schedule success. Furthermore, the presented design schedule management will aid industry with successfully executing the design phase in a timely manner, including examples from case study projects for a greater understanding.

Research on the Impact Mechanism of Organizational Culture on Project Performance in Construction Projects

2017 ◽  
Vol 873 ◽  
pp. 212-219
Author(s):  
Yu Ming Song ◽  
Ya Qin Wang ◽  
Yun Le
Keyword(s):  
Organizational Culture ◽  
Construction Projects ◽  
Project Performance ◽  
Project Managers ◽  
Citizenship Behavior ◽  
Citizenship Behaviors ◽  
Impact Mechanism ◽  
The Impact

The existing literature shows that organizational culture has a significant impact on its performance. However, few studies probe into their relationship in the context of project. This study examines the impactmechanism of organization cultureon project performancethroughorganizational citizenship behavior (OCB) in the construction projects. A survey on 451 professionals served in the construction projects is conducted. The findings demonstrate that organizational culture influences project performance significantly. And clan culturehas greaterpositive effectsonproject performance than other three culture domains. The results also indicate OCB partially mediates the impact of organizationalcultureon project performance. These findings suggest that organizationalculture can be used by project managers as a lever to exert citizenship behaviors among project members and eventually improveproject performance. The managerialimplications are discussed.

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 Project Leadership and Quality Performance of Construction Projects

2017 ◽  
Vol 4 (2) ◽  
Author(s):  
SPG Buba ◽  
BL Tanko
Keyword(s):  
Leadership Styles ◽  
Leadership Style ◽  
Construction Projects ◽  
Poor Quality ◽  
Project Managers ◽  
Performance Criteria ◽  
Quality Performance ◽  
Aesthetic Quality ◽  
Public Projects ◽  
The Impact

Background: The construction industry in Nigeria, is pigeonholed by poor quality of construction products as a result of the inherent corruption in the country. Lack of purposeful leadership and inappropriate choice of leadership styles in the industry have been attributed to project failure. Abandoned and failed projects are more predominant in the public sector which litters every corner of the country. Objectives: The objective of this paper is to assess the impact of leadership styles on quality performance criteria of public projects in Nigeria. Methodology: A total of 43 questionnaires were distributed to 3 key groups of respondents (Quantity Surveyors, Builders, and Architects) who are project managers in Nigeria. Descriptive and Inferential statistics were used to analyse the data using the Statistical Package for Social Sciences (SPSS). Likert Scale was used to measure the independent variables (leadership style): facilitative, coaching, delegating and directing; and the level of achievement of projects based on the dependent variables (quality and function performance criteria) which are: achieving highest aesthetic quality; and functional building that fits its purpose. Findings: The study revealed that Directing is the major leadership style used by project managers in Nigeria. Amongst the leadership styles which has the most impact on quality performance indicators is also directing which has the most relative influence on achieving highest aesthetic quality and functional building that fits its purpose. Conclusion/Recommendation/Way forward: The underlying relationship between Directing leadership styles and the performance criteria of achieving highest aesthetic quality and functional building that fits its purpose will be beneficial to the Nigerian construction environment.

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.

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