Quantification of Delay Factors Using the Relative Importance Index Method for Construction Projects in Turkey

2013 ◽  
Vol 29 (2) ◽  
pp. 133-139 ◽  
Author(s):  
Murat Gündüz ◽  
Yasemin Nielsen ◽  
Mustafa Özdemir
Keyword(s):  
Construction Projects ◽  
Relative Importance ◽  
Index Method ◽  
Importance Index

Relative Importance of Factors Affecting Construction Hazards in the Design Phase

2013 ◽  
Vol 330 ◽  
pp. 862-866
Author(s):  
Seyyed Shahab Hosseinian ◽  
Zahra Jabbarani Torghabeh ◽  
Aziruddin Ressang
Keyword(s):  
Construction Projects ◽  
Relative Importance ◽  
Design Phase ◽  
Construction Sites ◽  
Index Method ◽  
Safety Level ◽  
Factors Affecting ◽  
Importance Index ◽  
Construction Accidents ◽  
Construction Hazards

dentifying the root causes of construction accidents has indicated that not only contractors but designers and architectures are capable of influencing construction workers safety. The aim of this study is to investigate and prioritize factors affecting construction hazards in the design phase. To achieve the aim of this study, a questionnaire survey was distributed among respondents randomly selected from construction sites within Malaysia. Relative Importance Index method was used to prioritize factors in order of level of effect on construction hazards. The results indicated that Lack of designers safety knowledge, Lack of designers knowledge about construction processes and Late involvement of constructors in the design process have the highest level of effect while Lack of safety organizations which evaluates the safety level of design and Few application of components' prefabrication have the lowest level of effect on hazards in the design phase of construction projects.

scholarly journals Analysis of Delay In Execution of Construction Projects

2018 ◽  
Vol 9 (1) ◽  
pp. 41-49
Author(s):  
P. Muralidhar ◽  
Rahul Kumar Jain ◽  
B. Srivasta ◽  
V. Poorna Chandra Rao
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Material Design ◽  
Relative Importance ◽  
Critical Factors ◽  
Point Scale ◽  
Index Method ◽  
Construction Companies ◽  
Importance Index ◽  
Spss Software

The construction industry is one of the major sectors that provide important ingredients for the development of country’s economy. A survey is conducted to identify the major causes of construction delays, its effects, and minimizing delays in construction projects using relative importance index method. The questionnaire was circulated among various construction companies located in India to find the reasons which are affecting the construction projects in India. The various factors are identified for this purpose and these critical factors are then categorized into owner, contractor, consultant, material, design, labor, equipment and external factors. About fifty six responses are received for the analysis purpose. SPSS software is applied to perform the analysis. The survey is concentrated on the frequency of occurrence of this factors and what is the severity of this factors in the five point scale.

Causes of Delay in Budget Hotel Construction Projects

2014 ◽  
Vol 5 (3) ◽  
pp. 49-63 ◽  
Author(s):  
Milind T. Phadtare
Keyword(s):  
Construction Projects ◽  
Business Group ◽  
Relative Importance ◽  
Joint Effort ◽  
Indian Context ◽  
Importance Index ◽  
Project Participants ◽  
Causes Of Delays ◽  
Industry Training

Delay in construction projects is a universal phenomenon. However, the topic is not adequately studied in the Indian context. This paper attempts to identify the causes of delays in construction of budget hotels in India and suggest remedies to avoid some delays. A business group constructing budget hotels across the country is approached for this study. Forty causes of delay have been identified and Relative Importance Index was calculated. The contribution of each category of causes of delay to overall delay in the projects was computed. Remedies such as, joint effort of the participants of the industry, training, coordination between project participants and project timing and scheduling are suggested and validated.

scholarly journals Identification and analysis of factors affecting labour productivity in Iraq

2018 ◽  
Vol 162 ◽  
pp. 02032 ◽  
Author(s):  
Tareq Khaleel ◽  
Yasser Nassar
Keyword(s):  
Labor Productivity ◽  
Construction Projects ◽  
Arab World ◽  
Labour Productivity ◽  
Relative Importance ◽  
Construction Sites ◽  
Factors Affecting ◽  
Importance Index ◽  
Leadership Motivation ◽  
Major Factors

Productivity is a very important element in the estimation process in construction management. The objective of this research is to identify and analyze the factors which affect labor productivity in construction projects. In this research, 42 effective factors were collected from site survey, interview with engineers and experts, and previous research in the Arab world. These factors are grouped into Nine categories “Workforce, Leadership, Motivation, Supervisors, Safety, Project, Time, Material, and External”. A survey questionnaire of 70 respondents was distributed among different experts. A statistical analysis was done using SPSS and EXCEL packages. The Relative Importance Index was used to find out the most significant factors affecting the labor productivity in construction sites. The results accomplished from the survey revealed that the major factors negatively affect the labor productivity (ranked from the worst factor with Relative Importance Index values, respectively) namely, Availability Material (88.571%), Climate status “Weather” (88%), Religious occasions (86.29%), Number of working groups (86%), Ganger experience (85.714%), Workforce surveillance (84.857%), Ganger Age (84%), working at height (82%), Drawings and specifications alteration during execution (81.69%), and Sequence of floor (80.571%). Based upon these findings, this can help the construction professionals to improve the productivity and project performance in Iraq.

scholarly journals DAMPAK CHANGE ORDER PADA PROYEK PERKERASAN JALAN

2020 ◽  
Vol 3 (1) ◽  
pp. 199
Author(s):  
Alexander Junius ◽  
Mega Waty
Keyword(s):  
Construction Projects ◽  
Road Construction ◽  
Relative Importance ◽  
Validity And Reliability ◽  
Change Orders ◽  
Importance Index ◽  
Change Order ◽  
Order Change ◽  
The Cost ◽  
The Impact

In a construction project, changes during the construction period are common. This change can be in the form of an increase or decrease in volume and type of work, changes in work specifications, or changes in the schedule for implementation. Changes in projects are often known as change orders. Change orders must be approved by all parties in a project namely, contractors, owners, and consultants. Change orders are caused by several factors such as changes in design, delays in procurement of goods, differences in field conditions, and others. The impact of this change order is felt by all parties involved in a project, but the change order has a different impact on each party involved. This study aims to determine the biggest impact of change orders from the contractor. In the questionnaire submitted the impact of change order is divided into several variables namely, the cost of quality, time, organization, and others. From the responses of respondents regarding the impact of change orders on road construction projects, an analysis was performed with the calculation of the Relative Importance Index (RII), and the biggest impact was obtained. Before the data is processed with RII, the validity and reliability tests are performed first. The biggest impact of change orders caused by change orders is that change orders increase the budget for contractors, change orders increase overhead costs, increase project duration, cause project costs overruns, and change orders cause a decrease in project profits. AbstrakPada suatu proyek konstruksi, perubahan selama masa konstruksi merupakan hal yang umum terjadi. Perubahan ini bisa berupa penambahan atau pengurangan volume dan jenis pekerjaan, perubahan spesifikasi pekerjaan, maupun perubahan jadwal pelakasnaan. Perubahan dalam proyek sering dikenal change order. Change order harus disetujui oleh semua pihak yang ada dalam suatu proyek, yaitu kontraktor, pemilik, dan konsultan. Change order disebabkan oleh beberapa faktor seperti perubahan desain, keterlambatan pengadaan barang, perbedaan kondisi lapangan, dan lain-lain. Dampak dari change order ini dirasakan seluruh pihak yang terlibat dalam suatu proyek, namun change order menimbulkan dampak yang berbeda pada tiap pihak yang terlibat. Penelitian ini bertujuan untuk mengetahui dampak change order terbesar dari pihak kontraktor. Dalam kuesioner yang diajukan dampak change order dibagi menjadi beberapa variabel yaitu, biaya mutu, waktu, organisasi, dan lainnya. Dari hasil tanggapan responden mengenai dampak change order pada proyek konstruksi jalan, dilakukan analisis dengan perhitungan Relative Importance Index (RII), dan didapat dampak terbesar. Sebelum data diolah dengan RII dilakukan uji validitas dan uji reliabilitas terlebih dahulu. Dampak change order terbesar yang ditimbulkan oleh change order adalah change order menambah anggaran untuk kontraktor, change order meningkatkan biaya overhead, menambah durasi proyek, menyebabkan biaya proyek membengkak, dan change order menyebabkan penurunan keuntungan proyek.

scholarly journals THE IMPACT OF TOURISM ACTIVITIES ON THE ENVIRONMENT OF MOUNT KINABALU, UNESCO WORLD HERITAGE SITE

2020 ◽  
Vol 18 (14) ◽  
Author(s):  
Normah Abdul Latip ◽  
Mastura Jaafar ◽  
Azizan Marzuki ◽  
Kamand Mohammadzadeh Roufechaei ◽  
Mohd Umzarulazijo Umar ◽  
...  
Keyword(s):  
Environmental Impacts ◽  
Environmental Sustainability ◽  
Environmental Concern ◽  
World Heritage Site ◽  
Relative Importance ◽  
Index Method ◽  
Mount Kinabalu ◽  
Unesco World Heritage Site ◽  
Importance Index ◽  
The Impact

Tourism contributes to the conservation and protection of mountainous areas, and even the characteristics and activities of tourism also affect the environmental sustainability of an area. This study aims to identify tourist characteristics, their opinion towards a sustainable environment, their activities conducted at the park and environmental impacts. Overall, 383 respondents agreed to participate, and the response has been analysed using the relative importance’s of these activities, and environmental impacts were quantified by the relative importance index method. Most of them visited Mount Kinabalu to experience natural sightseeing and hiking activity. Majority of them know environmental concern but feeling that KNP is rather crowded. Overall, the most popular activities were mount climbing and wildlife sightseeing by domestic and international tourist. The result of the study also has shown that noise and air pollution were ranked as the most important environmental impacts factors. Considering mountain tourism is an attraction and contributor to the economy of Sabah, there must be effective preventive measures. Because of that, planning, implementing and strengthening new policies and rules for tourist activities regarding the conservation and protection will help to minimize the impacts of tourism. Through the results of the study using the Relative Importance Index (RII) analysis, it is hoped that it will be able to help provide suggestions and solutions to balance the impacts of tourism in Mount Kinabalu towards sustainability.

scholarly journals Causes of Delay in Budget Hotel Construction Projects

2016 ◽  
pp. 1085-1099
Author(s):  
Milind T. Phadtare
Keyword(s):  
Construction Projects ◽  
Business Group ◽  
Relative Importance ◽  
Joint Effort ◽  
Indian Context ◽  
Importance Index ◽  
Project Participants ◽  
Causes Of Delays ◽  
Industry Training

Delay in construction projects is a universal phenomenon. However, the topic is not adequately studied in the Indian context. This paper attempts to identify the causes of delays in construction of budget hotels in India and suggest remedies to avoid some delays. A business group constructing budget hotels across the country is approached for this study. Forty causes of delay have been identified and Relative Importance Index was calculated. The contribution of each category of causes of delay to overall delay in the projects was computed. Remedies such as, joint effort of the participants of the industry, training, coordination between project participants and project timing and scheduling are suggested and validated.

scholarly journals Implementation of TQM and the Integration of BIM in the Construction Management Sector in Saudi Arabia Validated with Hybridized Emerging Harris Hawks Optimization (HHO)

2021 ◽  
Author(s):  
Mohammad Abazid ◽  
Hüseyin Gökçekuş ◽  
Tahir Celik
Keyword(s):  
Saudi Arabia ◽  
Construction Projects ◽  
Evaluation Metrics ◽  
Support Vector ◽  
Relative Importance ◽  
Total Quality ◽  
Mean Values ◽  
Performance Accuracy ◽  
Importance Index ◽  
The Mean

This research is aimed at evaluating two different scenarios, firstly, appraising the impacts of employing the concepts of Total Quality Management (TQM) to the construction projects in Saudi Arabia. The results of the study were obtained through utilization of a descriptive analytical approach, where 300 questionnaires were distributed to engineering firms and companies with a response rate of 200 questionnaires, hence achieving the study sample for this research. The data gathered was analyzed by applying the Statistical Package for Social Science (SPSS) program and calculating the Relative importance index (RII) and the mean values. From the research conducted, the outcomes showed that the management’s ability to commit using TQM while applying BIM obtained a relative importance of (0.717), while the relative importance for the management’s ability to commit using TQM without the application of BIM is (0.552). The results showed that construction projects in Saudi Arabia still sustain setbacks from applying TQM concepts and suffer from the lack of administrative, scientific and technical applications. In a second scenario, a hybridized support vector regression (SVR) Harris-hawks optimization (HHO) (i.e., SVR-HHO) were used to predict the TQM. The performance accuracy of the models was checked through three different evaluation metrics namely; mean square error (MSE), correlation co-efficient (CC) and Nash-Sutcliffe efficiency (NSE). the hybridized emerging SVR-HHO outperformed the other two data driven approaches in both the training and testing stages based on the employed evaluation metrics. Overall, the obtained results showed that both the machine learning and metaheuristic approaches were capable of predicting TQM.

scholarly journals Material waste minimization techniques in building construction projects

2021 ◽  
Vol 14 (1) ◽  
pp. 1-19
Author(s):  
Shitaw Tafesse
Keyword(s):  
Waste Management ◽  
Construction Projects ◽  
Construction Material ◽  
Management Strategies ◽  
Construction Materials ◽  
Building Construction ◽  
Rapid Expansion ◽  
Waste Minimization ◽  
Index Method ◽  
Importance Index

In Ethiopia, the rapid expansion of the construction sector has resulted in the wastage of construction materials that negatively affect the environment, society, and the economy. The reason is inefficient waste management strategies practiced in construction projects. Hence, an adequate material waste management strategy is required. This study was an attempt to identify the key techniques that can help to minimize material wastage in building construction projects. Questionnaire surveys, interviews, and reviews of previous studies and related literature were employed in gathering the relevant data. Seventy of 85 questionnaires administered and distributed to contractors, consultants, and clients were returned. These data were analyzed using the relative importance index method. The results indicated that employing waste management officers for this purpose, using prefabricated or off-site production of components, appropriate on-site waste management, and incorporating a policy of material waste minimization plan were identified as key measures to minimize construction material wastes.

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