scholarly journals Determination of Direct to Indirect Accident Cost Ratio for Railway Construction Project

2019 ◽  
Vol 266 ◽  
pp. 03009 ◽  
Author(s):  
Nik Nur Khairunnisa Nik Mohd Ainul Azman ◽  
Asmalia Che Ahmad ◽  
Mohmad Mohd Derus ◽  
Izatul Farrita Mohd Kamar
Keyword(s):  
Construction Industry ◽  
Cost Estimation ◽  
Construction Projects ◽  
Light Rail ◽  
Cost Ratio ◽  
Permanent Disability ◽  
Railway Construction ◽  
Railway Construction Project ◽  
Self Administered Questionnaire

Construction industry involves dangerous activities which few are exposed to a high risk of being fatal, injuries and damages to machinery and property. The construction of Mass Rapid Transit (MRT) and Light Rail Transit (LRT) have no exception to those accidents. The accident can bring economic burden to project stakeholders especially contractors and client. However, the accident cost is relatively complicated because of its “hidden” or “invisible” portion. Thus, this paper is aimed to determine the ratio of direct to indirect accident cost for railway construction projects. The study was conducted using self-administered questionnaire distributed to safety practitioners (n=11) at MRT and LRT construction projects. A total of 36 out of 43 reportable accident cases successfully collected for the study and were analysed with simple descriptive statistics. The findings show that the accident cost ratio for fatality is 1:1.22, permanent disability is 1:1.94, and temporary disability is 1:1.19. The overall accident ratio for all accident classifications is 1:1.23. The findings of the current study may impact future safety cost estimation process in determining the hidden accident costs for railway construction projects.

scholarly journals A new approach for modelling variability in residential construction projects

2013 ◽  
Vol 13 (2) ◽  
pp. 83-92 ◽  
Author(s):  
Mehrdad Arashpour ◽  
Ron Wakefield ◽  
Nick Blismas ◽  
EWM Lee
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Accurate Determination ◽  
Weather Conditions ◽  
Completion Rates ◽  
New Approach ◽  
Cycle Times ◽  
Product Delivery ◽  
Standard Practices

The construction industry is plagued by long cycle times caused by variability in the supply chain. Variations or undesirable situations are the result of factors such as non-standard practices, work site accidents, inclement weather conditions and faults in design. This paper uses a new approach for modelling variability in construction by linking relative variability indicators to processes. Mass homebuilding sector was chosen as the scope of the analysis because data is readily available. Numerous simulation experiments were designed by varying size of capacity buffers in front of trade contractors, availability of trade contractors, and level of variability in homebuilding processes. The measurements were shown to lead to an accurate determination of relationships between these factors and production parameters. The variability indicator was found to dramatically affect the tangible performance measures such as home completion rates. This study provides for future analysis of the production homebuilding sector, which may lead to improvements in performance and a faster product delivery to homebuyers. 

scholarly journals Building Information Modelling Technology in Mitigating Cost Overruns and change orders in Construction Projects

2021 ◽  
Vol 4 (1) ◽  
pp. 50-64
Author(s):  
Ja’far A. Aldiabat Al-Btoosh
Keyword(s):  
Construction Industry ◽  
Cost Estimation ◽  
Construction Projects ◽  
Information Modeling ◽  
Cost Overruns ◽  
Change Orders ◽  
Significant Difference ◽  
Project Costs ◽  
Building Information ◽  
And Control

Variation order (VO) is one of the main issues faced by the construction industry in Jordan. Many researchers had investigated on the causes of VO and proposed procedures to minimize and control this issue; however, the VO is affecting the construction industry badly even at moment. Building Information Modeling (BIM) is a powerful management system that can make a significant difference in the project costs. However, BIM has not been examined as a tool to minimize the VO in Jordan. The main target of this study is to utilize BIM applications in reducing the effect of VO on the governmental projects in Jordan. In order to achieve this target, the researcher has designed a questionnaire to gather data related to VO causes and the BIM capability to solve this problem. The data collected from the questionnaires were analyzed statistically. The result from the analysis found that the consultant initiated the highest VO of 50% followed by the clients and the contractors of 20% and 10% unforeseen variation respectively. Moreover, it is found that BIM Design Applications, Facility Operations Simulation, Exploration Design Scenarios, BIM Design Detection and BIM Quantity Take-off and Cost Estimation were significantly capable of minimizing VO. The results show positive relationship with the application of BIM in minimizing VO in the construction industry in Jordan. © 2018. JASET, International Scholars and Researchers Association

scholarly journals Assessment of Delay Factors in Saudi Arabia Railway/ Metro Construction Projects

2020 ◽  
Vol 11 (2) ◽  
Author(s):  
Raja Khan Mohammed Gopang ◽  
◽  
Qadir Buxalias Imran ◽  
Sasitharan Nagapan ◽  
◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Construction Industry ◽  
Construction Projects ◽  
Railway Construction ◽  
Design Changes ◽  
Importance Index ◽  
Control Procedures ◽  
Labor Skills ◽  
Spearman’S Correlation ◽  
Delay Factor

Railway construction industry has devoted vast amount of resources into advancing the management and technology of railway construction, yet most project in this industry often failed to comply with the set deadlines and budget limits. This study was conducted to recognize the critical factors that are causing delays in the construction of Riyadh Metro project, Saudi Arabia. From a thorough literature review, thirty-six (36) factors causing delays were identified which were then distributed to qualified industry experts in a survey questionnaire. A total of 105 respondents were gathered during the data collection. The datawas then evaluated statistically by utilizing different calculation tools that are frequency adjusted importance index for the delay factor ranking, and Spearman's correlation coefficient for the link between two different set of data. The result of this research identified the top five main delay factors to the railway construction projects which are “Client's decision-making process and changes in control procedures”, “Design Errors (including ambiguities and discrepancies of details/specifications)”, “Labor skills level”, “Design changes by Client or Consultant” and lastly, “Issues regarding permissions/ approvals from other stakeholders”.Finally, this study is hoped to help the railway construction industry in bettering itself by highlighting which issues should be focused on to counter the delays and reduce downtimes.

Barriers to lean construction implementation in Zimbabwe

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Tirivavi Moyo ◽  
Benviolent Chigara
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Lean Construction ◽  
Cost Overruns ◽  
Educational Levels ◽  
Content Type ◽  
Related Quality ◽  
And Performance ◽  
Context Specific

Purpose Increased waste during projects execution has led to time and cost overruns within the Zimbabwean construction projects industry. However, contextual barriers to lean construction implementation are yet to be established for derivation of effective remedies. The purpose of this paper is to report on a study that sought to determine barriers to lean construction implementation and assess the existence of statistically significant differences because of gender, designation and educational levels of respondents. Design/methodology/approach A questionnaire survey was administered on construction professionals for the collection of quantitative data. Factor analysis was used to reveal interrelated significant sets of barriers to lean construction implementation. Non-parametric statistical methods were also used to determine significant differences because of demographic variables. Findings Integration- and performance-related, human capital management–related, quality management–related barriers were determined as the highest-ranked of the nine significant components. Significant differences because of gender, designation and educational levels were non-existent for aggregated barriers, generally indicating consensus on the barriers. However, individual barriers showed inadequacies in management requirements for lean construction implementation from architects and those with diplomas and degrees. Research limitations/implications The determination of barriers establishes the knowledge for construction policy evaluation for enhanced performance of the construction industry. However, because of the exploratory nature of this study, the insights of clients were not considered. Originality/value Context-specific barriers to lean construction implementation were determined for consequent construction policy improvements in the construction industry.

BUILDING INFORMATION MODELING (BIM) ROLES IN THE MALAYSIAN CONSTRUCTION INDUSTRY

2014 ◽  
Vol 1 (1) ◽  
Author(s):  
Aryani Ahmad Latiffi ◽  
Suzila Mohd ◽  
Juliana Brahim
Keyword(s):  
Construction Industry ◽  
Cost Estimation ◽  
Construction Projects ◽  
Building Information Modeling ◽  
Facility Management ◽  
Information Modeling ◽  
Structured Interviews ◽  
New Paradigm ◽  
Building Information ◽  
Potential Improvement

Building Information Modeling (BIM) represents a new paradigm in the Malaysian architecture, engineering, and construction (AEC) industry. BIM technology provides virtual models (including 3-D models) to generate a building’s entire lifecycle. The model can also be used for analyzing design clashes, project scheduling, cost estimation, and facility management. The use of BIM in construction projects can reduce time to develop a project, reduce construction cost, and increase project quality. This paper aims to explore roles of BIM in the Malaysian construction industry. Semi-structured interviews were conducted with project consultants and BIM consultants involved in two government projects. The projects were the National Cancer Institute (NCI) Malaysia and Sultan Ibrahim Hall (formerly known as the Multipurpose Hall of Universiti Tun Hussein Onn Malaysia, or UTHM). The interviews revealed effects of BIM in both projects and potential improvement in implementing BIM in construction projects in Malaysia. A literature review and the interviews revealed that BIM is increasingly used and accepted by construction players in Malaysia, and is expected to grow in future.

Research on Schedule Planning Management of Railway Construction Project Based on CAS

2011 ◽  
Vol 403-408 ◽  
pp. 2560-2563
Author(s):  
Xiang Dong Zhao ◽  
Hao Lian ◽  
Dong Sheng Zhang
Keyword(s):  
Project Management ◽  
Conceptual Model ◽  
Construction Projects ◽  
Construction Project ◽  
Project Manager ◽  
Operational Planning ◽  
Allocation Of Resources ◽  
Master Schedule ◽  
Railway Construction ◽  
Railway Construction Project

The CPM and PERT are the most popularly used underlying method of schedule planning of construction project, Problematically, CPM and PERT depend on the experiences of project manager, which is not true in railway construction project. A huge deviation occurs between the actual progress and planned schedule. This leads to unreasonable allocation of resources and cost increment. Referring to the characteristics of schedule planning of railway construction projects, we proposed schedule planning conceptual model of railway construction project based on CAS. The model consists of three parts. They are master schedule, forecasting planning and operational planning. Forecasting planning is produced by master schedule and adjusted by operational planning dynamically. In addition, RBF neutral network is employed to improve the accuracy of master schedule. The paper provides novel viewpoint and idea for project management of railway construction.

The Research on Railway Construction Project Materials Supplier Selection Model

2014 ◽  
Vol 919-921 ◽  
pp. 1503-1508
Author(s):  
Ai Min Li ◽  
Guo Qing Wang ◽  
Jing Jing Zhang
Keyword(s):  
Supplier Selection ◽  
Construction Projects ◽  
Cost Control ◽  
Construction Project ◽  
Indicator System ◽  
General Construction ◽  
Main Concern ◽  
Selection Methods ◽  
Railway Construction ◽  
Railway Construction Project

In recent years railway constructions are attracted many large investments, and generally 60-70% percentage of project budget are cost in the materials supplies, which are the main concern of the railway construction projects cost control. In this paper, we do some researches on suppliers choice to investigate the logic of railway construction projects supplies cost control. The structure is firstly to build the indicators of general construction project materials supplier selection, then to find criterion of general construction project materials supplier selection, and thirdly considering the projects distinctiveness to select the line with the actual situation of railway projects suppliers indicators. At last combined all the results of front researches to construct an indicator system for railway construction project materials supplier selection, and further study the supplier selection methods which are based on the indicator system and verified by an example.

scholarly journals Mechanisms for implementing Lean - technologies as an innovative approach in modeling the structure of the standard time determining for construction processes implementation

2021 ◽  
Vol 1 (47) ◽  
pp. 26-36
Author(s):  
I. Rudnieva
Keyword(s):  
Construction Industry ◽  
Cost Estimation ◽  
Lean Manufacturing ◽  
Construction Projects ◽  
Lean Production ◽  
Business Environment ◽  
Lean Construction ◽  
Innovative Approach ◽  
Future Research ◽  
Standard Time

Recently, a significant number of scientists' works have been devoted to the application of the lean-production principles, in particular, the introduction of lean construction. Objective construction cost estimation is a key factor in construction projects. The article discusses the problems, significant losses, low productivity in construction companies and the possibilities of their elimination due to the use of the lean-construction management concept as an innovative approach in modeling the structure of the standard time determining for construction processes implementation in order to increase the company's competitiveness. The productivity of the construction industry worldwide has been falling for the past 40 years. Companies must use appropriate methods to reduce their losses and increase productivity levels so that they can stand in the rapidly changing competitive environment of the current business environment. One of the approaches to improving the situation is the use of "lean management" in the construction industry is the result of the desire of construction business owners to optimize costs and increase labor productivity, the efficiency of organizational and technological processes, and introduce lean- production in the construction industry. A huge number of scientists and construction professionals are trying to change the traditional organizational and technological form of construction production and add value to owners, while making real profits. As a result, lean manufacturing tools have emerged that have been successfully applied to simple and complex construction projects. Ukraine is very far behind in terms of the development level of innovative processes from many countries of the world. Outdated ENiR norms, which were developed without taking into account the Lean strategy, need to be finalized. Of course, the introduction of a lean manufacturing system is a topic for the near future. Thanks to this, it is possible to significantly reduce the cost overruns on projects, as well as the time of their implementation up to 30%, or even more. Therefore, future research objective should be the development of a new modern methodology for determining the standard time, which will take into account the criteria of lean technologies, as an innovative approach in modeling the structure and sequence of all operations of construction processes.

scholarly journals THE STATEMENT OF THE PROBLEM OF DEVELOPING THE METHODOLOGICAL BASES OF INFORMATION MODELING OF THE COST ESTIMATION PROCESS FOR THE OPTIMIZATION OF DESIGN WORK

2020 ◽  
Vol 11 (4) ◽  
pp. 81-93
Author(s):  
A. Y Bukalova ◽  
K. V Avdeeva
Keyword(s):  
Construction Industry ◽  
Cost Estimation ◽  
Construction Projects ◽  
Optimization Design ◽  
Information Technologies ◽  
Investment Project ◽  
Subject Area ◽  
Information Modeling ◽  
Design Work ◽  
Advantages And Disadvantages

The article is devoted to the justification of the relevance of the development of information modeling technologies in the construction industry. The article discusses issues related to the use of BIM technologies in domestic and foreign practice, and presents examples of objects constructed using BIM technologies. The analysis of the research subject area of information modeling, the relevance of the issue of using BIM technologies at the stage of design work and the development of estimate documentation, as well as algorithms, processes and methods for introducing information modeling into the practice of design work, it was concluded that the issue of using information technologies for optimization design work, cost management of construction investment project. The advantages and disadvantages of the developed technologies for applying BIM technologies at the current stage of the practice of developing construction projects are identified. A comparison of the traditional method of estimation documentation and the method based on the use of BIM-technologies is presented. As a result, the purpose and objectives of further research in this subject area have been formulated. Recently, the introduction of information modeling or BIM technologies (Building Information Modeling) is offered to increase the success of construction projects. Thanks to BIM-technologies, the solution to a huge number of tasks arising during the construction process is reduced. However, this technology is new in the construction industry, which leads to the emergence of a large number of contradictions associated with its implementation and application.

FACTORS TOWARDS THE RESTORATION OF ABANDONED RESIDENTIAL CONSTRUCTION PROJECTS IN MALAYSIA: A PILOT STUDY

2016 ◽  
Vol 78 (5) ◽  
Author(s):  
Sunitha V. Doraisamy ◽  
Zainal Abidin Akasah ◽  
Azme Khamis
Keyword(s):  
Quality Of Life ◽  
Pilot Study ◽  
Construction Industry ◽  
Construction Projects ◽  
Vital Role ◽  
Residential Construction ◽  
Residential Projects ◽  
Significant Factors

The construction industry in Malaysia plays a vital role in meeting with people’s needs and increasing the quality of life of the society as well. However, it must be noted that most of the construction projects are failed to complete on time. It is also not uncommon for construction projects to be delayed, or in the worst scenario even abandoned due to various reasons, which has been studied by researches from Malaysia and other countries as well. This study was conducted to identify the significant factors contributing towards the restoration of abandoned residential projects in Malaysia. This study also touches on the factors for non-revival/discontinuation of the abandoned projects too. In the purpose of doing so, data was collected using questionnaires from a certain targeted group for this study. The data collected was further analyzed, which resulted on the determination of the most important factors to the least. From the analysis too, the reliability of the questionnaire was also established, where it is suggested as a tool for further research on the related issue.  

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