scholarly journals Identifying The Factors Affecting The Performance Of Construction Projects In Wolaita Zone-Ethiopia

2021 ◽  
Vol 23 (12) ◽  
pp. 243-248
Author(s):  
Ashenafi Reta ◽  
◽  
Ashebir Alyew ◽  
Keyword(s):  
Construction Projects ◽  
Leadership Skills ◽  
Construction Project ◽  
Project Manager ◽  
Key Factors ◽  
Average Delay ◽  
Factors Affecting ◽  
Project Duration ◽  
Performance Problem ◽  
Overall Performance

Performance indicators of construction project are used to measure overall performance in construction projects. These indicators can then be used for benchmarking purposes, and will be a key element of any organization’s move towards attaining quality practice in order to overcome performance problem. The results of a questionnaire survey done to determine factors affecting the performance of construction projects in Ethiopia’s Wolaita zone are presented in this paper. Personnel from consultants, owners, and contractors involved in construction projects were among the survey’s respondents. The outcome of the study outlines Availability of personnel with high experience and qualification, Availability of resources as planned through project duration, Average delay because of closures and materials shortage, Conformance to specification and Leadership skills for project manager as the top ranked key factors that affect performance of construction project.

scholarly journals Comparative investigations of nonlinear and linear observers for a highly manoeuvrable target in sliding mode guidance

2017 ◽  
Vol 65 (2) ◽  
pp. 233-245
Author(s):  
Y. Wang ◽  
M. Sun ◽  
S. Du ◽  
Z. Chen
Keyword(s):  
Sliding Mode ◽  
Guidance System ◽  
Key Factors ◽  
Factors Affecting ◽  
First Order ◽  
Guidance Law ◽  
Linear Observer ◽  
Overall Performance ◽  
Twisting Algorithm ◽  
Different Levels

Abstract Target manoeuvre is one of the key factors affecting guidance accuracy. To intercept highly maneuverable targets, a second-order sliding-mode guidance law, which is based on the super-twisting algorithm, is designed without depending on any information about the target motion. In the designed guidance system, the target estimator plays an essential role. Besides the existing higher-order sliding-mode observer (HOSMO), a first-order linear observer (FOLO) is also proposed to estimate the target manoeuvre, and this is the major contribution of this paper. The closed-loop guidance system can be guaranteed to be uniformly ultimately bounded (UUB) in the presence of the FOLO. The comparative simulations are carried out to investigate the overall performance resulting from these two categories of observers. The results show that the guidance law with the proposed linear observer can achieve better comprehensive criteria for the amplitude of normalised acceleration and elevator deflection requirements. The reasons for the different levels of performance of these two observer-based methods are thoroughly investigated.

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.

Identifying the key factors in construction projects that affect neighbourhood social sustainability

Facilities ◽  
2020 ◽  
Vol 38 (11/12) ◽  
pp. 765-782 ◽  
Author(s):  
Essam Almahmoud ◽  
Hemanta Kumar Doloi
Keyword(s):  
Construction Projects ◽  
Construction Project ◽  
Social Sustainability ◽  
Key Factors ◽  
Social Functions ◽  
Content Type ◽  
The Social ◽  
New Construction ◽  
Questionnaire Surveys ◽  
Physical Comfort

Purpose Construction projects have huge impacts on the social sustainability of the neighbouring community. The purpose of this paper is to identify and understand the key factors of a construction project that contribute to the social sustainability of a neighbourhood. Design/methodology/approach Questionnaire surveys relating to two case studies of regeneration projects in Saudi Arabia were carried out to ascertain and analyse the perceptions of residents of the neighbourhood communities in which the projects were built. Findings The results derived from factor analysis suggested five significant underlying social factors: health and physical comfort, accessibility, integration, economy and participation. These are defined as the core social functions necessary for enhancing social sustainability in the neighbourhood community as a result of new construction. Originality/value Ideally, a construction project will create spaces where people can interact socially, develop a sense of community and grow and prosper. This study reveals how the neighbours of the project felt about it and what sort of input they wanted to have in the design, construction and operation of the facility. For developers emphasising sustainability, this is the essential data.

Factors that trigger bullying amongst subcontractors toward intention to quit in the construction projects

2019 ◽  
Vol 10 (1) ◽  
pp. 140-152
Author(s):  
Alireza Jalali ◽  
Nur Izzati Hidzir ◽  
Mastura Jaafar ◽  
Norziani Dahalan
Keyword(s):  
Construction Projects ◽  
Workplace Bullying ◽  
Construction Project ◽  
Partial Least Square ◽  
Least Square ◽  
Intention To Quit ◽  
Equation Modeling ◽  
Key Factors ◽  
Data Set ◽  
Content Type

Purpose The purpose of this paper is to examine the relationships between three key factors that cause workplace bullying among subcontractor managers toward intention to quit the undertaken project within the context of Malaysia. Design/methodology/approach This study utilized the simple sampling method to select its study sample, while the questionnaire survey approach was implemented amidst 500 G6 and G7 contractor managers across Peninsular Malaysia. A total of 210 completed questionnaires were returned. Partial least square-structural equation modeling was administered to analyze the data via SmartPls 3.0 software. Findings This study discovered three significant factors (main contractor leadership, construction culture, work organization and job design) that displayed positive effect on workplace bullying among subcontractor managers toward intention to quit. The study outcomes can serve as a direction for policy makers to reduce bullying within the construction project environment. Practical implications This study serves as an instruction for main contractors to reinvent their style of management in overcoming bullying in construction projects. This paper guides that collaborative relationship among various parties in construction projects, including the representatives of main contractors and subcontractor managers, may assist in addressing the hostile environment of construction project, in order to create a constructive relationship between them that leads to overall project success. Originality/value Recognition of the three key factors that lead to workplace bullying among subcontractor managers in the construction industry, which are bound to enhance intention to quit based on the data set with strong statistical results, has made the research original.

Exploring influential factors leading to the poor performance of public construction project in Ethiopia using structural equation modelling

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Benti Gadisa ◽  
Hong Zhou
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Construction Project ◽  
Poor Performance ◽  
Project Performance ◽  
Influential Factors ◽  
Project Design ◽  
Content Type ◽  
Factors Affecting ◽  
Public Construction

PurposeIt is well recognized that the construction industry is characterised by inefficient and ineffective service delivery due to various causative factors. Thus this study aims to examine the influential factors affecting public construction project performance in Ethiopia to improve the industry's service delivery.Design/methodology/approachFrom the extensive literature reviewed, 58 potential factors affecting construction project performance have been compiled. Based on the evidence accumulated, the conceptual model of this paper has been developed. By using survey questionnaires, valuable data were collected from the construction industry professionals in Ethiopia; analysed and interpreted with the use of both SPSS and AMOS software.FindingsIt is concluded that failure factors related to the “performance” of the contractor, the “capability” of the owner, the “project design-procurement process,” and project contract management can significantly contribute to the poor performance of public construction projects in Ethiopia. Ten key factors include inadequate contractor capacity, weak project site management and supervision, weak project management skills and capabilities of the owner, additional work orders, delayed payment, lack of comprehensive project plans between parties and incomplete project design, rising material prices, ineffective project schedules, and cost management, rising market prices and devaluation of the currency.Research limitations/implicationsThe scope of this study confined to public projects in Ethiopia. It suggests that further research needs to consider public and private construction from a comprehensive perspective in the developing countries.Practical implicationsIt provides practitioners with information and guidance on the factors that affect the performance of construction projects.Originality/valueIt provides inclusive evidence related to many factors that affect the performance of public construction projects.

scholarly journals Improving Employee Performance in Industrial Parks: An Empirical Case of Garment Enterprises in Binh Duong Province, Vietnam

2019 ◽  
Vol 10 (1) ◽  
pp. 44-58
Author(s):  
Thanh-Lam Nguyen ◽  
Pham Xuan Giang
Keyword(s):  
Employee Performance ◽  
Key Factors ◽  
Factors Affecting ◽  
Overtime Work ◽  
Industrial Parks ◽  
Overall Performance ◽  
Job Promotion ◽  
And Performance ◽  
Fierce Competition ◽  
Reward And Recognition

In responding to the current international integration and fierce competition on marketplace, over the last few decades, most businesses have tried to continuously improve their performance for better competitiveness. One of the preferred approaches is to enhance their employee performance; thus, fully capturing its determinants is critical. Thus, this study aimed at identifying key factors affecting employee performance so that businesses can create proper policies and actions to improve their overall performance. Specifically, as a common phenomenon, most employees working in industrial parks not only live far away from their workplaces as well as work a lot of overtime. These issues were carefully considered in this study to investigate their impacts on the employee satisfaction and performance. In the empirical case of garment enterprises in Binh Duong industrial parks, it was found that job satisfaction and employee performance are positively affected by eight factors: (1) reward and recognition; (2) development and training; (3) job promotion; (4) income; (5) work environment; (6) relationship with superiors; (7) relationship with colleagues; and (8) work procedure and role. In addition, it was found to be negatively affected by the house–work distance and overtime work, which are two new factors proposed in this study.

Modeling of the harmonization method for executing a multi-unit construction project

2019 ◽  
Vol 9 (1) ◽  
pp. 282-291 ◽  
Author(s):  
Michał Tomczak
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Construction Project ◽  
Optimization Method ◽  
Linear Processes ◽  
Project Duration ◽  
Construction Enterprises ◽  
Non Linear ◽  
Implementation Time ◽  
Selection Of

AbstractOne of the key problems in managing the realization of a construction project is the selection of appropriate working crews and coordinating their activities in a way that ensures the highest degree of implementation of defined goals (minimizing the project duration and/or reducing downtime and related costs). Most of the existing methods of work harmonization used in construction industry allow obtaining the desired results only in relation to the organization of the processes realization in repetitive linear projects. In case of realization of non-linear construction objects or construction units, it is usually necessary to choose between the reduction of the project implementation time and maintaining the continuity of crews work on the units. It was found that there is a lack in the literature of developed method enabling harmonization of crews’ work, while minimizing the downtime at work and the duration of the entire project taking into account additional constraints, e.g. the need to not exceed the deadlines for the realization of the project stages.The article presents the concept of a multi-criteria optimization method of harmonizing the execution of non-linear processes of a multi-unit construction project in deterministic conditions. It will enable the reduction of realization time and downtimes in work, taking into account the preferences of the decision maker regarding the relevance of the optimization criteria. A mathematical model for optimizing the selection of crews and order of completion of units in multi-unit construction projects was also developed. In order to present the possibility of usage of the developed concept, an example of the optimal selection of crews and their work schedule was solved and presented. The proposed method may allow for better use of the existing production potential of construction enterprises and ensure synchronization of the crews employed during the work, especially in the case of difficulties in acquiring qualified staff in construction industry.

scholarly journals APPLICATION OF QUALITY PLANNING TO OPTIMIZE PRODUCT AND CONSTRUCTION PROJECT QUALITY

2021 ◽  
pp. 1-8
Author(s):  
Tuan Nguyen Anh ◽  
Tuong Le Manh ◽  
Tung Huynh Van
Keyword(s):  
Product Quality ◽  
Construction Projects ◽  
Construction Project ◽  
Developed Countries ◽  
Mathematical Tool ◽  
Factors Affecting ◽  
Quality Planning ◽  
Investment Projects ◽  
The World ◽  
Cartesian Coordinate

A country is called developed when the capacity and progress of science and technology have created products that always meet the requirements and increasing needs of people, ensuring stability and development of the nation in particular and the movement of the world in general. In Vietnam, the quality of goods is still modest. This exists not only from a macro perspective but also from a micro perspective and the transition from macro to micro because of a lack of orientation, or can be called the lack of "Product quality planning” [21,25] in terms of space. This paper will discuss the concepts of quality, expand the concept of quality with the aim of achieving good quality, meeting increasing requirements, need to perform the "quality planning" work under the space degree. The paper uses a mathematical tool based on the Cartesian coordinate system to determine the optimal value of product quality in order to demonstrate quantitatively according to the spatial frameworks when the quality is desired to achieve the required perfection through the magnitude of the "quality demand.” In a similar way, in order to get the construction project achieve the maximum quality, there must be adjustment solutions in 3 aspects. However, at present, in Vietnam in particular and the world in general, there have not been many in-depth studies on the formation of quality and the factors affecting the quality, especially the industrial construction projects [3]. Through the success or failure of investment projects in the form of public private partnerships (PPP) of countries around the world, including developed countries, the author thinks that in order for the project to be successful, it is necessary to apply construction product quality planning.

scholarly journals Study of factors affecting the performance of construction projects in AEC industry

2020 ◽  
Vol 12 (1) ◽  
pp. 2275-2282
Author(s):  
Saurav Dixit
Keyword(s):  
Construction Industry ◽  
Financial Management ◽  
Construction Projects ◽  
Construction Project ◽  
Primary Data ◽  
Enabling Factors ◽  
Management Planning ◽  
Factors Affecting ◽  
Living Entity ◽  
Questionnaire Surveys

Abstract A construction project is like a living entity and requires the interconnection and coordination of several stakeholders and many of them have their objectives, which sometimes create a conflict of interest between the teams and within the teams. The success of any project is repeatable, and a set of attributes for the success of a construction project can be identified, requiring discipline and hard work. The construction sector is the engine of growth for a nation and supplies services and goods to other industries. The objective of the study is to analyse the enabling factors affecting the performance construction projects in Architecture Engineering and Construction industry. The methodology chosen for the study is to collect primary data from the Indian construction industry using structured questionnaire surveys. The collected data are analysed using reliability and factor analyses. The findings of the study provide the value of reliability, that is, Cronbach's alpha value of (0.86) of the data collected using a questionnaire survey. Furthermore, exploratory factor analysis produced five main significant factors based on covariance between the attributes and grouped into factors such as site management and coordination, leadership and financial management, planning, commitment, and coordination having a variance of 17.65, 11.8, 9.1, 8.5, and 7.5%, respectively. This article is the extended version of the paper accepted and presented at CCC2019.

scholarly journals TRIP RATES FOR CONDOMINIUM CONSTRUCTION PROJECT

2015 ◽  
Vol 9 (1) ◽  
pp. 73-81
Author(s):  
Wirach Hirun
Keyword(s):  
Construction Projects ◽  
Large Scale ◽  
Impact Analysis ◽  
Construction Project ◽  
Accurate Information ◽  
Linear Regression Method ◽  
Trip Generation ◽  
Passenger Cars ◽  
Factors Affecting ◽  
Traffic Impact

The number of large scale condominium construction projects had dramatically increased in Bangkok. Many projects had occurred in either densely populated areas or in central business districts, where traffic conditions were usually highly congested. To prevent traffic problems, a traffic impact study must be prepared and submitted for review by concerned public authorities. Unit trip generation rates were important data in traffic impact analysis. Without accurate unit trip generation rates, public agencies could not obtain accurate information on the traffic that will be generated. This study aimed to study trip rates and the factors affecting them for condominium construction project in Bangkok. The data were collected from 30 condominium construction sites located in 15 districts of Bangkok. The analysis used the linear regression method and was divided into three cases: 1) trip rates for all vehicles, 2) trip rates for classified vehicles, and 3) trip rates for all types of condominium. All case analyses considered weekdays, Saturday, and Sunday. The results found that trip rates related to the number of dwellings in the condominium. The trip rates for all vehicle types on weekdays, Saturday, and Sunday were 10.636, 4.647, and 9.294 vehicles per 100 dwelling units per day respectively. The trip rates for six-wheeled and ten-wheeled trucks on weekdays, Saturday, and Sunday were 2.046, 0.975, and 0.575 vehicles per 100 dwelling units per day respectively. The trip rate for four-wheeled trucks and passenger cars on weekdays was 1.960. Regarding condominium types, the trip rate for low rise condominiums for all vehicle types on weekdays was 5.315 while the trip rates for high rise condominiums for weekdays, Saturday, and Sunday were 3.965, 2.667, and 1.261 respectively.

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