مدیریت ساخت و مدیریت پروژه
seyed ali asghar mousavi; alireza valipour
Abstract
Earned value management (EVM) is one of the most frequently applied methods in project management for the investigation of the performance and controlling of the temporal and cost progress of the project. Using its temporal and cost control indices, this method is capable of predicting the future status ...
Read More
Earned value management (EVM) is one of the most frequently applied methods in project management for the investigation of the performance and controlling of the temporal and cost progress of the project. Using its temporal and cost control indices, this method is capable of predicting the future status of the project in terms of time and cost. But, this approach falls short of taking the risk analysis and project’s variability into account. The primary goal of the present study is the conceptual and subjective combining of risk management and EVM and investigation of the effect of risk occurrence on the project’s objectives using the EVM indices. To collect the information on the theoretical foundations and study literature and study background, use has been made herein of the Persian and Latin books, articles, dissertations and information databases and questionnaire and interview have been the methods of choice for gathering the information pertinent to the scales and indices. Moreover, in order to identify and prioritize the risks, the perspectives of the sophisticated experts and managers in civil activities have been inquired and ANP and Super Decision Software have been the instruments of interest for information analysis. After analyzing and evaluating and prioritizing the risk, the risk management process has been applied along with challenging the dimensions and factors influencing the project’s prospective performance to offer the risk coefficient that was subsequently combined with the current EVM indices for increasing the accuracy and precision of the project goals’ estimation. A civil reconstruction project (central building project of Shiraz’s municipality) in progress was evaluated for applying and comparing this method. Finally, it was found that the occurrence of risk has a significant impact on the project's objectives and changes its time and costs, additionally, given the risk factor, deviation from the time and cost of the project can considerably decrease.
مدیریت ساخت و مدیریت پروژه
seyed ali asghar mousavi; alireza vali pour
Abstract
One of the goals of knowledge of construction management is to identify the unforeseen factors and situations in the way of implementing projects in order to provide effective plans for dealing with potential risks and project risks. Risk assessment is one of the most important factors in risk management ...
Read More
One of the goals of knowledge of construction management is to identify the unforeseen factors and situations in the way of implementing projects in order to provide effective plans for dealing with potential risks and project risks. Risk assessment is one of the most important factors in risk management and research indicates the need to use risk assessment to achieve success in construction projects. The aim of this study is to identify the types of risks in constructions projects based on the PMBOK, analysis, ranking and priority of risks using ANP method in order to improve the technical, qualitative and economic aspects of constructions projects. this research is in search of a suitable model that can use risk management and its methods in order to implement the economic and technical implementation of civil engineering projects. At first, 40 risks were identified in the context of 8 groups of risk factors through library studies and interviews, then by questionnaire and their analysis, were finally identified and ranked as the most important risks in constructions projects. Also, experts’ and experienced managers’ expertise in constructions activities was duly consulted to identify and prioritize the risks, and for the analysis of information, ANP and Super Decision software were used. Finally, it was found that the risk of delay in case of situations, adjustments and other costs to the contractor from the risk group of employers is the most important risk.
مدیریت ساخت و مدیریت پروژه
Dariush Khazei
Abstract
Purpose and subject: Concrete is one of the most widely materials used in construction projects, whose technology is very broad and includes various specialties. On the other hand, the importance of construction projects in various areas of the national economy and industry of the country is undeniable, ...
Read More
Purpose and subject: Concrete is one of the most widely materials used in construction projects, whose technology is very broad and includes various specialties. On the other hand, the importance of construction projects in various areas of the national economy and industry of the country is undeniable, and since these types of projects are inherently risky, in the present research, the risks of not using advanced concrete in these projects are investigated and value engineering is used to reduce their effects. Methodology: For this purpose, in the framework of the proposed method, first, the risks caused by not using advanced concrete in construction projects were extracted according to the opinion of experts and specialists in this field and confirmed using statistical methods. Then the relevant risks were prioritized and ranked using value engineering. Conclusion: The results showed that the three risks that have the highest priority are: customer dissatisfaction, reduced price and lack of resistance to earthquakes. At the end, suggestions were made to reduce these risks.
Zabiholah Rostami
Abstract
Since investment in any field is associated with risk and uncertainty, this article seeks to identify and prioritize investment risks in the industry. Assessing the amount of investment risk in these projects is one of the key issues in the field of investment in industries with advanced technology. ...
Read More
Since investment in any field is associated with risk and uncertainty, this article seeks to identify and prioritize investment risks in the industry. Assessing the amount of investment risk in these projects is one of the key issues in the field of investment in industries with advanced technology. What is obvious is that there is a big difference between the business environments and administrative systems of different countries; Therefore, the effective criteria for investment in different countries are not the same. Today, risk management is a suitable solution to deal with risks that may occur in a project. In risk response analysis, risks are often assumed to be interdependent, in fact, risks in a project mutually influence each other, and independent risk rarely exists. In addition, the implementation of the management of various projects, including construction projects, has many ambiguous cases. The purpose of project risk management is to plan, organize, direct and control the activities and processes of a project. in such a way that the positive effects (opportunities) are maximized and the negative effects (threats) are minimized. A systematic process of planning to identify, analyze, respond and monitor project risk. This management includes processes, tools and techniques that help the project manager to maximize the probability of positive event results and minimize the probability of negative event results. By using the complete process of project risk management, it can be claimed that it is the project manager who is the master of the uncertain conditions of the project, not that the conditions and events make the management captive. The purpose of preparing this article was to examine the risks in investment projects and provide solutions to control or reduce them.
Shahab Rezvani
Abstract
By examining the conditions of construction projects and costs related to occupational health and safety incidents, it is determined that occupational hazards and the management of safety and health risks are one of the most important missions and responsibilities of the project management system. Therefore, ...
Read More
By examining the conditions of construction projects and costs related to occupational health and safety incidents, it is determined that occupational hazards and the management of safety and health risks are one of the most important missions and responsibilities of the project management system. Therefore, this study aims to Occupational health and safety risk assessment was carried out in one of the shopping center construction projects in Tehran.This research is a descriptive-analytical study with a direct observation approach. The sample in this research was all project employees in the number of 80 samples, which were purposefully sampled and selected.The data were analyzed using the risk management form by the FMEA method.
Somayeh Ghorbani Noe
Abstract
As projects grow and develop and become more complex, new tools are needed to help manage projects. One of these tools is risk management, because in an unstable and uncertain environment, one can expect Out-of-schedule and unexpected events at any time. Experts' knowledge is often used to assess the ...
Read More
As projects grow and develop and become more complex, new tools are needed to help manage projects. One of these tools is risk management, because in an unstable and uncertain environment, one can expect Out-of-schedule and unexpected events at any time. Experts' knowledge is often used to assess the risk of projects, but humans always use words and phrases in their conversations that have no clear boundaries. Fuzzy logic is used to deal with such ambiguous words and phrases. Fuzzy set theory is a method that has proven effective in managing uncertainties similar to those mentioned in construction projects. A fuzzy expert system is an expert or knowledge-based system that uses a set of fuzzy membership functions and rules to reason data instead of binary logic. For systems with high uncertainty where sufficient and accurate information is not available, the fuzzy approximation reasoning approach is proposed. Fuzzy system input can be inaccurate information and system processing is done using approximate reasoning. In this study, the risks in construction projects were investigated by obtaining the opinions of experts in the fields of clients, consultants and contractors. By providing steps, we have tried to identify risks, evaluate them, and control high-priority risks using fuzzy logic and expert systems.
abolfazl yazdani
Abstract
Lack of government resources and severe need for infrastructure development facilities, governments need to attract the private sector in the country's infrastructure projects, BOT can be considered a reliable way to attract private capital, our country has also used this method in recent years. For ...
Read More
Lack of government resources and severe need for infrastructure development facilities, governments need to attract the private sector in the country's infrastructure projects, BOT can be considered a reliable way to attract private capital, our country has also used this method in recent years. For all its benefits to the BOT system, there is plenty of experience with BOT projects around the world that has failed or at least failed to achieve its intended purpose; They warn us in choosing this method. The aim of this study was to investigate and rank the risks inside and outside the project in BOT projects using library studies and combining it with field surveys. The continuation of identified risks is analyzed and prioritized using expert opinion collection. For this purpose, a questionnaire was used and to analyze the results and data obtained from the field survey, SPSS24 software was used as the most powerful statistical analysis software and to deduce the results. From the field survey, Heider test was performed on the accuracy of the answers, the validity and reliability of the answers. In order to check the normality of the data, skewness coefficient and elongation coefficient, in order to optimize the variables, one-sample t-test, etc. were used.
Somayeh Ghorbani Noe
Abstract
Nowadays, there is risk in all aspects of life and construction projects are not excluded of this rule. Existence of risks and uncertainties in different stages of work is the main reason for the project's failure to achieve its predetermined goals. Project risk management is the science of identifying, ...
Read More
Nowadays, there is risk in all aspects of life and construction projects are not excluded of this rule. Existence of risks and uncertainties in different stages of work is the main reason for the project's failure to achieve its predetermined goals. Project risk management is the science of identifying, analyzing, and responding to risk over the life of a project that is used to reduce or eliminate the likelihood or effects of adverse outcomes on project time, cost, and quality targets. The FMEA technique is one of the methods of determining the value of risk that not only identifies the errors and defects that are hidden and obvious in the system and process, but also searches to reduce or eliminate them by taking the correct preventive measures. To analyze the risks in construction projects, we are faced with uncertainties such as ambiguity, and fuzzy theory provides the necessary mathematical tools to deal with vague and ambiguous data. Accordingly, in this study, a model consisting of seven basic steps based on the combination of FMEA technique and fuzzy logic was proposed. The risks in construction projects were identified with the help of previous studies and researches and the effective parameters on the risks were quantified by experts. By calculating the risk priority number, the risks were ranked. In addition, a method for calculating and mapping the level of risks was introduced, which identifies not only critical risks but also all high-risk components of the project risk Breakdown structure. Also, in order to reduce or eliminate the negative consequences of high-priority risks, corrective measures were investigated in the research.
Hirbod Hooshmand
Volume 2, Issue 9 , December 2021, , Pages 29-46
Abstract
Risk management is a new branch of management science that, despite being young, is rapidly expanding and growing and has been welcomed by experts and managers in a variety of trends and in a wide range of subjects such as investment, business, Insurance, safety, health, industrial and development projects ...
Read More
Risk management is a new branch of management science that, despite being young, is rapidly expanding and growing and has been welcomed by experts and managers in a variety of trends and in a wide range of subjects such as investment, business, Insurance, safety, health, industrial and development projects and even political, social and military issues have found their place. Therefore, it can be concluded that risk management has a special place in project management and has commonalities with it, including commonalities can be the uniqueness of the project, uncertainty in the hypotheses, goals and requirements of the project and … Enumerated. In general, the environmental factors governing the project are the roots of uncertainty and the source of risk in projects. Issues such as uncertainty in the basics and initial estimates of the project, uncertainty in the design and procurement of the project and uncertainty in its objectives, make the conditions of the projects very risky and make risk management in the projects unavoidable. Therefore, in this article, first the concepts of risk management in construction projects are examined in general and then risk management with a knowledge-based approach and also its relationship with value management is examined. Finally, a case study of risk management in construction projects with a view to finding the sources of risk is reviewed. Finally, suggestions for further study and research in this field are provided.
Reza Zarei; abbas sabet; Ahmad Jenabali Jahromi
Volume 2, Issue 9 , December 2021, , Pages 47-56
Abstract
Institution Communications are including one of active and vital element. Effective Communication resulting to proper, correct and complete information and knowledge management in different layers in institution and providing proper decision for improvement of performance of project and also decreasing ...
Read More
Institution Communications are including one of active and vital element. Effective Communication resulting to proper, correct and complete information and knowledge management in different layers in institution and providing proper decision for improvement of performance of project and also decreasing of risk projects. Therefore, present research performed with target of risk prediction of construction management according to institution management. Present research with view of practical target and with view of collecting descriptive data with kind of conjunction. Statistic society of present research of staff of “Sad and Omran Pars” Company with number of 300 staff. The method of sampling is random and the volume of sample identify through Kookran formula. For collecting of considered information and evaluation of research variant are used standard questionnaire. And validity of measure instrument from content and fixity accepted from coefficient of Koronbakh Alpha.For analyzing information are used from lisrel 8.5. The result of path analysis showed that institutional communications have significant effect on risk of construction project and management and knowledge management has a significant effect between institutional communications risk of construction project
Hossein Shokouhi; Khosro Movahhed
Volume 3, Issue 1 , April 2021, , Pages 29-41
Abstract
Risk management in urban projects is a complex task whose complexity depends on the size of the quantitative and qualitative dimensions of the urban project. Urban projects in the current market and business conditions are exposed to crisis at any time. The environment of urban projects is very variable ...
Read More
Risk management in urban projects is a complex task whose complexity depends on the size of the quantitative and qualitative dimensions of the urban project. Urban projects in the current market and business conditions are exposed to crisis at any time. The environment of urban projects is very variable and the conditions of uncertainty are many, and these conditions become more difficult for larger urban projects. Undoubtedly, proper management of these risks is a prerequisite for facilitating the crisis conditions of urban projects, and the need to access and expand the related sciences is quite obvious. This article examines the effect of variables such as age and occupation on risk-taking in urban project management, analyzes the relevant principles and challenges, and by conducting a study on the workforce in Shiraz Municipality, examines each Which of the independent variables of age and occupation dealt with risk-taking and its factors and finally led to the conclusion that none of the independent variables of gender, age, level of education and occupation had a statistically significant effect on risk-taking and its factors.
Abbas Ali Farrokh
Volume 1, Issue 8 , January 2020, , Pages 27-41
Abstract
A prerequisite for improving transport safety is the perception of safety as an independent aspect of the system. Relevant organizations should review safety-related issues in the field of services, processes and actions and ensure the proper functioning of their elements. The construction of an urban ...
Read More
A prerequisite for improving transport safety is the perception of safety as an independent aspect of the system. Relevant organizations should review safety-related issues in the field of services, processes and actions and ensure the proper functioning of their elements. The construction of an urban subway in Tehran began around 1981 and has been going on for nearly 35 years. . In addition to the financial pressures on society and projects, wasted time, delays, and the failure of skilled labor and equipment are the consequences of these events. There are several risk assessment methods around the world that can be used to identify and eliminate risk. The subway construction project is one of the projects that, unfortunately, despite the proper risk assessment and identification of the priority of risks in this area, is always associated with job accidents.
hossein sheikhhassani; ali osati
Volume 1, Issue 7 , December 2019, , Pages 54-59
Abstract
Natural hazard analysis can be a useful tool in deciding, planning and prioritizing crisis management actions. This study provides a correct overview of the proposed strategies in the field of crisis management with a preventive approach.
Read More
Natural hazard analysis can be a useful tool in deciding, planning and prioritizing crisis management actions. This study provides a correct overview of the proposed strategies in the field of crisis management with a preventive approach.
Shabnam Alihassani; Ahmad Edalatpanah
Volume 1, Issue 5 , October 2019, , Pages 11-22
Abstract
The main purpose of the present study is to investigate the impact of external factors on risk management in construction companies (case study in Hormozgan province). The research method was descriptive correlational. The statistical population includes engineers working on active projects, specialists ...
Read More
The main purpose of the present study is to investigate the impact of external factors on risk management in construction companies (case study in Hormozgan province). The research method was descriptive correlational. The statistical population includes engineers working on active projects, specialists and experts in Hormozgan province with a total of 120 people, Due to the limited number of the statistical population, all individuals were considered as the sample, but in multiple follow-up, 5 completed questionnaires were collected and statistically exploited. The research tool was a 36-item questionnaire developed and validated by Khaksar et al. One-way regression and Friedman tests were used to analyze the research hypotheses through SPSS / 23 software. The results showed that external factors influence the risk management of construction companies and there was a significant difference between the mean ratings of external factors affecting risk management in construction companies. The highest mean score was for the construct items and the lowest was for the job position items. In fact, the factors of tenure were: construction factor, economic and financial factor, administrative and organizational factor, social and cultural factor, technical and technological factor and job position factor in risk management in construction companies.
Mostafa Pourhosein zakariaee
Volume 1, Issue 4 , September 2019, , Pages 40-52
Abstract
Risk management is an integral part of a project's success and is a process that helps identify early problems and thus take steps to prevent them from becoming real problems in the future. In this paper, multi-criteria decision making methods are used as a quantitative approach to prioritize identified ...
Read More
Risk management is an integral part of a project's success and is a process that helps identify early problems and thus take steps to prevent them from becoming real problems in the future. In this paper, multi-criteria decision making methods are used as a quantitative approach to prioritize identified risks in the project. Finally, after reviewing the problem conditions, a multi-criteria decision-making method for ranking the project risks in fuzzy mode is introduced and the application of this approach in the water transmission line industry by using fuzzy TOPSIS method as a case study of the tropical design project - Part 2 Is located.
Hassan Saharkhiz
Volume 1, Issue 4 , September 2019, , Pages 68-77
Abstract
There is no risk management approach to minimize such differences at construction sites, although the number of environmental disputes is increasing. The purpose of this study is to develop an environmental risk index model for general contractors to minimize third-party environmental disparities in ...
Read More
There is no risk management approach to minimize such differences at construction sites, although the number of environmental disputes is increasing. The purpose of this study is to develop an environmental risk index model for general contractors to minimize third-party environmental disparities in construction sites. The analytical hierarchy process is used to calculate and evaluate the environmental risk index.
