scholarly journals Delay Factors Management and Ranking for Reconstruction and Rehabilitation Projects Based on the Relative Importance Index (RII)

2020 ◽  
Vol 12 (15) ◽  
pp. 6171
Author(s):  
Basem Al Khatib ◽  
Yap Soon Poh ◽  
Ahmed El-Shafie

In recent decades, the construction industry has developed rapidly. Delay was and remains one of the most important challenges negatively affecting not only this industry but also the economy and sustainable development. This study aims to conduct a comprehensive analysis of the delay factors in reconstruction projects because of the vital importance of these types of projects. This is the first attempt to conduct such an analysis for reconstruction projects in particular, and it is a continuation of the previous case study, which was considered one of the most important reconstruction projects in the Middle East region. The previous study focused on determining the types of delay factors used in this project. It is necessary to carry out advance in-depth analysis to sort the delay factors based on their effect on the project plan. In order to achieve the study goal, 93 questionnaires were distributed by hand to experts working on the project: some of them working the day shift, and the others working the night shift. The questionnaire results were analyzed and delay factors were sorted in descending order according to the relative importance index (RII). The three main factors affecting the overall reconstruction project duration were site restrictions and conditions, electrical and mechanical rerouting works, and design buildability and adjustment.

2020 ◽  
pp. 460-473
Author(s):  
Hoda Baytiyeh

Mobile technologies are all-pervasive in the current digital generation, and college students rely on their mobile phones to communicate on a daily basis. In the midst of the myriad of applications available to download on the mobile, some tools have become more well-known and more often adopted than others. An example of such a tool is WhatsApp, which gains an increasing, widespread number of users on a daily basis, particularly in the Middle East region. The present study investigated college students' use of WhatsApp as a communication tool, and used Lebanon as a case study. A qualitative research design was implemented to understand the perceptions of college students vis-à-vis WhatsApp, and to investigate the motivational factors behind the popularity of this communication tool. The results revealed four themes: simplicity for discussion and coordination, cost-effectiveness, immediacy and sense of belonging.


Author(s):  
Raju Narwade ◽  
◽  
Karthik Nagarajan ◽  
Rajnish Singh ◽  
◽  
...  

The construction industry is considered to be one of the rapidly growing industries of India. So, to fulfil such a vast and constantly increasing construction demand the labour productivity is the key factor to maintain client satisfaction, attract investment, and contribute by helping the nation with its economic growth. Aluminium system formwork is one economical and technical approach to effectively maintain productivity of labours on site. Various research studies have been conducted to compare different types of formwork system and the advantages and disadvantages of each type of formwork system are examined in terms of cost, duration, quality etc. There is no standard procedure to put a number on the efficiency of the site labour, using aluminium formwork system in the industry. So, the primary objective of this study is to find the practical labour productivity in aluminium formwork system and the factors affecting the labour productivity. For this, research is performed on Purva Silversands project, Pune, Maharashtra (Residential Project). Labour productivity and its variations could generate a greater impact on the project economy and project duration. Low productivity can decrease profitability and increases construction cost. This case study shows that the actual productivity observed is less than the target productivity in some of the months, the reasons for variation in target and actual productivity is examined and the factors that hamper the productivity mostly are natural (rain), improper management and any breakdown of machinery. Whereas, the maximum productivity achieved in a month is 10.36 sqm per man per day.


2021 ◽  
Vol 23 (1) ◽  
pp. 78-96
Author(s):  
Anna Igorevna Abalian ◽  
Aref Bijan

A youth audience is the most vulnerable part of society as an object of influence of radical ideas. The authors argue that the most efficient tool of involving young people of different origin and confessional affiliation into the extremist activity on the present stage is social networks. Despite the fact that the practice of using communication networks in the Internet space by terrorist organizations have existed before, it was the information policy of the ISIS (and later IS) that was characterized by the greatest effectiveness, due to the creation of an integrated media structure, which consisted of numerous foundations and agencies (Al Furqan, Aynad, Itisaam, Al-Hayat, etc.), allowing them to spread their extremist religious and ideological doctrine on a global scale. The use of the widest range of high-quality media products in Internet media and social networks has expanded the organizations area of influence by attracting supporters not only from the Middle East region, but also from European countries and the Russian Federation. The case-study of the mechanisms for attracting European youth through social networks, such as Twitter, Facebook, etc., to extremist activities under the auspices of the IS is held. In conclusion, the prospects for the influence of IS propaganda in social networks after the defeat of a terrorist organization in 2018 are assessed. As a methodological basis of the research, aspect and activity approaches, as well as analytical, statistical methods and the method of content analysis are used.


Author(s):  
Hoda Baytiyeh

Mobile technologies are all-pervasive in the current digital generation, and college students rely on their mobile phones to communicate on a daily basis. In the midst of the myriad of applications available to download on the mobile, some tools have become more well-known and more often adopted than others. An example of such a tool is WhatsApp, which gains an increasing, widespread number of users on a daily basis, particularly in the Middle East region. The present study investigated college students' use of WhatsApp as a communication tool, and used Lebanon as a case study. A qualitative research design was implemented to understand the perceptions of college students vis-à-vis WhatsApp, and to investigate the motivational factors behind the popularity of this communication tool. The results revealed four themes: simplicity for discussion and coordination, cost-effectiveness, immediacy and sense of belonging.


2013 ◽  
Vol 330 ◽  
pp. 862-866
Author(s):  
Seyyed Shahab Hosseinian ◽  
Zahra Jabbarani Torghabeh ◽  
Aziruddin Ressang

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.


2018 ◽  
Vol 162 ◽  
pp. 02032 ◽  
Author(s):  
Tareq Khaleel ◽  
Yasser Nassar

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.


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