Journal articles on the topic 'Selection of contractors'
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1
BASHIRI, MAHDI, HOSSEIN BADRI, and JAFAR TALEBI. "A NEW FUZZY APPROACH FOR PROJECT SELECTION WITH OUTSOURCING VIEWPOINT." International Journal of Innovation and Technology Management 08, no. 02 (June 2011): 227–51. http://dx.doi.org/10.1142/s0219877011002349.
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Nowadays most of the organizations tend to outsource their projects. In these cases, two major problems arise: project selection and contractor selection. There are many papers which have argued separately about project and contractor selections. In this paper, we propose a decision support system for selecting projects and related contractors. The proposed approach contains three phases including contractors' prequalification (Phase 1), computing success coefficient of each contractor in projects using fuzzy TOPSIS method (Phase 2), and selecting projects and assigning each project to the most appropriate contractor using a linear programming model (Phase 3). Finally, a numerical example is illustrated to show the application of the proposed method.
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Ayegba, C., and D. Root. "Critical attributes for selecting contractors for long-term collaborative relationships." Environmental Technology and Science Journal 12, no. 2 (April 22, 2022): 1–10. http://dx.doi.org/10.4314/etsj.v12i2.1.
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The construction industry is increasingly embracing long-term collaborative relationships for project delivery. Since it is not all contractors that are suitable for collaboration and long-term relationships, and most clients are familiar with traditional practices of selecting contractors, there is need for an understanding on the critical attributes to consider in selecting contractors for long-term collaborative relationship contracts. The aim of this study is to determine the appropriate attributes required of contractors to successfully perform in long-term collaborative relationship contracts. The qualitative research methodology was adopted in this study, consisting of multiple case studies of organisations employing framework contracts in South Africa. Data for the study were collected via semi-structured interviews with 16 key informants of eight purposively selected organisations. The data were analysed with the aid of Nvivo 11 qualitative data analysis software utilising thematic qualitative data analysis techniques and presented using word clouds and direct quotes from key informants. The findings indicate that the critical attributes to consider when selecting contractors for long-term collaborative relationships are: team working attribute, commitment, innovativeness, and attributes relating to the behaviour and attitude of the contractors, such as openness, honesty, trust, transparency, ethical and being realistic. These critical attributes are add-ons to other general attributes (such as technical capacity, experience, and price) for contractor selection which are already sufficiently articulated in literature. The study result provides knowledge that can aid better decision making in selecting appropriate contractor for long-term collaborative relationship contracts in the construction Industry
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Ayegba, C., and D. Root. "Critical attributes for selecting contractors for long-term collaborative relationships." Environmental Technology and Science Journal 12, no. 2 (April 22, 2022): 1–10. http://dx.doi.org/10.4314/etsj.v12i2.1.
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The construction industry is increasingly embracing long-term collaborative relationships for project delivery. Since it is not all contractors that are suitable for collaboration and long-term relationships, and most clients are familiar with traditional practices of selecting contractors, there is need for an understanding on the critical attributes to consider in selecting contractors for long-term collaborative relationship contracts. The aim of this study is to determine the appropriate attributes required of contractors to successfully perform in long-term collaborative relationship contracts. The qualitative research methodology was adopted in this study, consisting of multiple case studies of organisations employing framework contracts in South Africa. Data for the study were collected via semi-structured interviews with 16 key informants of eight purposively selected organisations. The data were analysed with the aid of Nvivo 11 qualitative data analysis software utilising thematic qualitative data analysis techniques and presented using word clouds and direct quotes from key informants. The findings indicate that the critical attributes to consider when selecting contractors for long-term collaborative relationships are: team working attribute, commitment, innovativeness, and attributes relating to the behaviour and attitude of the contractors, such as openness, honesty, trust, transparency, ethical and being realistic. These critical attributes are add-ons to other general attributes (such as technical capacity, experience, and price) for contractor selection which are already sufficiently articulated in literature. The study result provides knowledge that can aid better decision making in selecting appropriate contractor for long-term collaborative relationship contracts in the construction Industry
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Ayegba, C., and D. Root. "Critical attributes for selecting contractors for long-term collaborative relationships." Environmental Technology and Science Journal 12, no. 2 (April 22, 2022): 1–10. http://dx.doi.org/10.4314/etsj.v12i2.1.
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The construction industry is increasingly embracing long-term collaborative relationships for project delivery. Since it is not all contractors that are suitable for collaboration and long-term relationships, and most clients are familiar with traditional practices of selecting contractors, there is need for an understanding on the critical attributes to consider in selecting contractors for long-term collaborative relationship contracts. The aim of this study is to determine the appropriate attributes required of contractors to successfully perform in long-term collaborative relationship contracts. The qualitative research methodology was adopted in this study, consisting of multiple case studies of organisations employing framework contracts in South Africa. Data for the study were collected via semi-structured interviews with 16 key informants of eight purposively selected organisations. The data were analysed with the aid of Nvivo 11 qualitative data analysis software utilising thematic qualitative data analysis techniques and presented using word clouds and direct quotes from key informants. The findings indicate that the critical attributes to consider when selecting contractors for long-term collaborative relationships are: team working attribute, commitment, innovativeness, and attributes relating to the behaviour and attitude of the contractors, such as openness, honesty, trust, transparency, ethical and being realistic. These critical attributes are add-ons to other general attributes (such as technical capacity, experience, and price) for contractor selection which are already sufficiently articulated in literature. The study result provides knowledge that can aid better decision making in selecting appropriate contractor for long-term collaborative relationship contracts in the construction Industry
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Bendaña, Ricardo, Alfredo del Caño, and M. Pilar de la Cruz. "Contractor selection: fuzzy-control approach." Canadian Journal of Civil Engineering 35, no. 5 (May 2008): 473–86. http://dx.doi.org/10.1139/l07-127.
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This paper presents a fuzzy-logic-based system for selecting contractors. This tool, which was based on the fuzzy control technique, was created for the private sector client in traditional design–bid–build projects with one-step selection processes, but its philosophy can also serve other types of clients, industries, contracts, and selection processes. The system develops an assessment of different qualitative and quantitative issues that influence a contractor’s suitability for constructing a specific design in a specific environment (client’s needs and objectives, objectives prioritization, etc.), taking into account the risk of not achieving the client’s objectives. A computer application was developed and validated, including a Delphi analysis with professionals who are experts in contractor selection. The application covers the possibility of using different selection policies, when the essential project objective is cost, time or quality. As part of the validation process, a neural network was developed to prove that the fuzzy-control tool has a behavior that can be recognized by a neural network.
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Mazaheri-Zadeh, Yoones, and Zahra Naji-Azimi. "Identification and Evaluation of Parameters Influencing the selection of Finance Project Contractors of Mashhad Water and Wastewater Company Using an AHP and Fuzzy Pramty." Current World Environment 10, Special-Issue1 (June 28, 2015): 184–92. http://dx.doi.org/10.12944/cwe.10.special-issue1.24.
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For managers and decision-makers, selecting the contractor is a key decision given this fact that the contractor plays a fundamental role in any outsourced project. So, identifying and evaluating the contractors selection criteria will result in eliminating inefficient contractors from the tender process. It is needed to collect and process these criteria in order to maximize the performance of selected contractors, and to minimize the errors and mistakes in fulfilling the society needs and organization standards. Obviously, many quantitative and qualitative indicators of different importance are involved in determining the contractors' eligibility. In this paper, we are to identify the factors affecting the selection of contractors, and then, to determine the importance levels of the factors and prioritize the contractors by combining the multi-criteria methods of fuzzy AHP and fuzzy PROMETHEE. This is the first time to implement this hybrid method for solving the contractor selection problem. In this regard, first, the criteria are identified and their weights are calculated using the fuzzy AHP technique, then premier contractor is selected using the fuzzy PROMETHEE method. A real application to select finance projects' contractor in the Water and Wastewater Company of Mashhad city is considered as the base problem.
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Chang, Kuei-Hu. "A Novel Contractor Selection Technique Using the Extended PROMETHEE II Method." Mathematical Problems in Engineering 2021 (November 18, 2021): 1–11. http://dx.doi.org/10.1155/2021/3664709.
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Selecting suitable contractors directly influences product quality, corporate profits, and even sustainable development. The selection problem of contractors is, therefore, a critical issue for the sustainable development of an enterprise. However, traditional contractor selection techniques are unable to handle information regarding the relative importance of criteria or handle nonexistent or missing data in the assessment process of contractor selection. In order to effectively address this problem, this study proposes a new contractor selection technique that integrates the concept of soft set and the PROMETHEE II method to select suitable contractors. Three numerical examples are applied to prove the correctness and effectiveness of the proposed technique. This study also compares the simulation results achieved using the proposed method with those achieved using the traditional weighted arithmetic averaging method and the data envelopment analysis (DEA) technique. The simulation results show that the proposed method is a more general contractor selection technique for handling incomplete information than the traditional weighted arithmetic averaging method and the DEA method.
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Ayegba, Calistus. "Duties and Required Competencies of a Management Contractor." Journal of Construction Business and Management 2, no. 1 (January 3, 2018): 1–9. http://dx.doi.org/10.15641/jcbm.2.1.70.
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One of the responses to the critical failings of separation of design and construction processes of traditional procurement system is the development of management contracting (MC) procurement system. Several studies have indicated MC procurement system to be most suitable for large and complex projects, when on-time project delivery is required, and when flexibility during construction is desired. Owing to the involvement of the Management contractor at both design and construction stage of projects, the management contractors play more significant role in the benefits that MC system has shown to deliver. This study aims to investigate the duties performed by the management contractor and the required competencies for a management contractor, to provide knowledge and understanding on important considerations for the selection of a management contractor. Empirical data was collected using documentary analysis of three management contracts tender documents and a semi-structured interview with a key role player of two of the management contracts in South Africa. Findings revealed the duties performed by management contractors to be multitasking, covering both the pre-construction and construction stage of building projects. Also, owing to the increased responsibilities of management contractors, the competencies required to perform as a management contractor are distinguishable when compared to competencies needed of contractors to perform in other procurement systems. The knowledge and understanding of the duties and required competencies to perform as management contractors provided in this study will help construction clients and the construction industry in the selection process, performance management and evaluation of management contractors.
Keywords: Construction procurement, Management and relationship formation duties, Management contracting procurement system, Management contractor.
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Chiang, Fu Yuan, and Pin Luarn. "Contractor Prequalification in Taiwan." Advanced Materials Research 905 (April 2014): 742–47. http://dx.doi.org/10.4028/www.scientific.net/amr.905.742.
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It is very important for the project owner to screen out potential failure contractors from the bidding process. Contractor prequalification has been established as a standard practice in solving this problem. This study uses a prequalification that is a financial ratios model to assess the contractor's financial capability in Taiwan. Do not consider non-quantifiable factor, the model is effective in assessing the financial ability of construction contractors' selection.
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Warrad, Islam O., Reda M. Abdulaal, and Omer A. Bafail. "Application of Integrated MCDM Models for Construction Contractors’ Selection at AlQuds University." International Journal of Advanced Engineering Research and Applications 7, no. 06 (October 31, 2021): 79–93. http://dx.doi.org/10.46593/ijaera.2021.v07i06.002.
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The first step to the success of any construction project at Al-Quds University is to choose the right contractor to construct a project. Therefore, the university’s engineering office must choose the contractors in a correct and practical method. Note that the process of selecting a contractor is a complex and not as simple as it may seem. As the selection of the contractor is subject to several criteria in various respects. Some of these criteria are important, but when compared with others, they become less important in the decision-making process. The importance of these criteria may differ from one project to another. Accordingly, this paper analyzes the current method for selecting contractors at Al-Quds University, studies the criteria and mechanisms for selecting contractors approved by the official authorities, and applies multi-criteria decision-making models that based on AHP-TOPSIS and AHP-MOORA to find the appropriate contractor for Al-Quds University construction buildings. The results from these two models are compared and investigated.
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Chaghooshi, Ahmad Jafarnejad, Ehsan Khanmohammadi, Maryam Faghei, and Amir Karimi. "Contractor Selection Using Integrated Goal Programming and Fuzzy ELECTRE." International Journal of Strategic Decision Sciences 5, no. 3 (July 2014): 65–86. http://dx.doi.org/10.4018/ijsds.2014070104.
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Outsourcing plays an important role in the success of organizations. One of the risks associated with outsourcing is inappropriate contractor selection which significantly influences the implementation of projects in terms of time, quality, and cost. In this study, we applied multi-criteria decision-making techniques in order to determine the best contractor using criteria such as reputation, offered price, and technical capacity. This study is primarily aimed at identifying important criteria of contractor selection, determining the significance of the criteria, and designing a framework for selection of the most appropriate contractor. Important criteria for selecting contractors were extracted from the literature and experts' views were collected using questionnaire. Accordingly, six criteria were selected and their weights were determined by the application of goal programming. Finally, contractors were ranked and the best contractor was selected using fuzzy ELECTRE technique with trapezoidal fuzzy numbers.
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Arslan, Gokhan. "WEB-BASED CONTRACTOR EVALUATION SYSTEM FOR MASS-HOUSING PROJECTS IN TURKEY." Journal of Civil Engineering and Management 18, no. 3 (June 29, 2012): 323–34. http://dx.doi.org/10.3846/13923730.2012.698892.
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Determining the most appropriate contractor for a construction project is a highly critical issue. Selecting the right contractor for the right job can significantly influence the overall project performance. In the selection process, construction clients have to know all financial, technical and general information about the contractors to determine the most appropriate one for the project. Within this context, clients should consider several criteria that may include quality of production, adequacy of technical staff and financial stability. In this study, a survey was carried out among 52 construction professionals working at the Public Housing Development Administration (PHDA) in Turkey. The objective of this survey is to examine the relative weights of the criteria that have been using by this owner in the construction contractor selection process. Afterwards, a web-based contractor evaluation system, WEB-CONTEST, by which the contractors can be evaluated based on a combined criterion, is proposed. The system facilitates the contractor selection process and enables the construction owner to select the most correct contractors for its relevant projects.
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Zainal, Rozlin, Garba Hamza, Norpadzlihatun Manap, and Noor Shahifah Syahrom. "Significant Ways to Improve the Performance of Medium and Large Local Contractors in the Jigawa State, Nigeria." MATEC Web of Conferences 266 (2019): 03018. http://dx.doi.org/10.1051/matecconf/201926603018.
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Contractors’ performance is an important criterion for the success of any construction project, as it is the contractor that converts designs into practical reality. While evidence suggests that there is much need for further improvement particularly in cost, time and quality, in Nigeria contractors’ performance is the subject that requires much research. This paper is to identify the significant ways to improve the performance of medium and large local contractors in the Jigawa state, Nigeria. Literature about contractors and their performance was reviewed to identify the ways believed to improve their performance in executing construction projects. Questionnaires distributed to 45 clients, 45 consultants, and 45 medium and large local contractors. The findings show that the respondents agree that the most significant ways to improve medium and large local contractor’s performance are transparent bidding process mechanism, proper selection of construction procurement system, quality control and standard assurance, local contractor patronage by the government and adopting information and communication technology (ICT) in design and construction. This paper offers better performance and expands the pool of knowledge to the Nigerian contractor regarding essential element that is needed to be observed in order to improve their performance.
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Rankin, Jeff H., Stephen L. Champion, and Lloyd M. Waugh. "Contractor selection: qualification and bid evaluation." Canadian Journal of Civil Engineering 23, no. 1 (February 1, 1996): 117–23. http://dx.doi.org/10.1139/l96-012.
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Historically the selection of contractors in North America was almost exclusively based on the lowest tendered price. Owners utilized competitive tendering for its simplicity and fairness in the award process. More recently, owners have reconsidered the use of low price as the basis for selecting contractors and therefore have attempted to modify the traditional low bid system with qualification and evaluation clauses. Qualification and evaluation clauses have caused considerable controversy in the public sector, where contractors are concerned about the legitimacy of tendering procedures when public funds are used. Although contractors agree that the system needs improvement, there are conflicting views on what should be done. This paper provides a summary of traditional tendering procedures and illustrates two possible modifications to the contractor selection process. The intended audience is practicing professionals, particularly those in the public sector where the objectivity of the tendering process is under such scrutiny. Evaluation is selected as the direction with the most potential for improvements. The evaluation option is analyzed by examining its legal implications through a discussion of recent case law. Finally, recommendations for implementing an evaluation system are discussed to address the issues identified through the legal discussion and from the opposing views in the construction industry. Key words: construction, contract law, competitive bidding, contractor qualification, bid evaluation.
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Mousakhani, Ehsan, Shirzad Ranjbar, and Taha Ashoori. "Identification and evaluation of criteria for selecting contractors using a risk management approach." Organization, Technology and Management in Construction: an International Journal 10, no. 1 (August 1, 2018): 1747–60. http://dx.doi.org/10.2478/otmcj-2018-0004.
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Abstract Transferring all or some parts of the engineering activities or supply of goods to third persons or companies is one of the adopted methods that transfer a significant part of the likely risks to the concerned side. Outsourcing activities are followed by many benefits, such as reducing overhead and operational costs, increasing efficiency, reducing risk, and so on; however, if this is not done carefully, not only is no benefit gained, but also new risks are imposed on the organization. Considering that waste of time and cost diversions of projects stem from the selection of inappropriate contractors, risk assessment is important in outsourcing. Using a risk-oriented approach based on software toward outsourcing, the present study aims to identify and rate the factors affecting the selection of contractors and to finally provide a method to evaluate and select the proper way for the selection of contractors. This method is not just based on the lowest price, but it also includes several factors that influence the selection of contractors, which is achieved by applying the Expert Choice software. At first, the most important risk factors in the selection of contractors were identified according to the conducted research. Then, the factors that had the greatest risk potential for achieving the project goals were chosen from among them. The opinions of experts were obtained in the next phase to determine the importance of various factors in the process of contractor selection, which was achieved by the distribution of a questionnaire. Subsequently, the most important factors chosen by the experts were specified, and their relationship with the contractor’s risk management was found.
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Rashid, Izwan, Syuhaida Ismail, Zainai Mohamed, and Abd Latif Saleh. "Contractor Selection Criteria: a Study on Malaysian Public Construction Projects." International Journal of Engineering & Technology 7, no. 3.25 (August 14, 2018): 65. http://dx.doi.org/10.14419/ijet.v7i3.25.17471.
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The complexity of a construction project renders the implementation of a systematic approach in selecting contractors to be of vital importance, especially for the public construction projects. Nevertheless, public construction projects in Malaysia often suffer from delay, over budget and low-quality issues. These are very much affected by the contractors who tend to manipulate the tender price with the sole intention of getting the contract, thus led to many issues throughout the projects delivery. Hence, this paper is aimed to investigate a list of contractor selection criteria for public construction projects in Malaysia. A total of 43 selection criteria have been identified and categorised into seven categories from an initial review via content analysis. These findings were then verified via a questionnaire survey, which was responded by 276 local Malaysian construction industry practitioners. Data collected were analysed using the IBM Statistical Package of Social Sciences (SPSS). The analysis showed that all 43 selection criteria were significant in selecting contractors. It is hoped that the findings of this paper would encourage the governing bodies and authorities to consider the use of multi criteria assessment in selecting contractors for public construction projects, rather than being solely reliant on the tendered price.
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Kozlovská, Mária, and Zuzana Struková. "Integration of Occupational Safety to Contractors` or Subcontractors` Performance Evaluation in Construction Projects." Selected Scientific Papers - Journal of Civil Engineering 8, no. 1 (June 1, 2013): 13–24. http://dx.doi.org/10.2478/sspjce-2013-0002.
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Abstract Several factors should be considered by the owner and general contractor in the process of contractors` and subcontractors` selection and evaluation. The paper reviews the recent models addressed to guide general contractors in subcontractors’ selection process and in evaluation of different contractors during the execution of the project. Moreover the paper suggests the impact of different contractors’ performance to the overall level of occupational health and safety culture at the sites. It deals with the factors influencing the safety performance of contractors during construction and analyses the methods for assessing the safety performance of construction contractors. The results of contractors’ safety performance evaluation could be a useful tool in motivating contractors to achieve better safety outcomes or could have effect on owners` or general contractors’ decision making about contractors suitability for future contracting works.
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Arowosafe, Oluwunmi, Olufolahan Oduyemi, Boris Ceranic, and Angela Dean. "Sustainable infrastructure delivery in Nigeria: implementation of the analytic network process for contractor selection." Sustainable Buildings 3 (2018): 5. http://dx.doi.org/10.1051/sbuild/2018003.
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Purpose: This paper presents research findings that involve the use of analytic network process (ANP) to select contractors for build–operate–transfer (BOT) infrastructure in Nigeria. To deliver sustainable infrastructure (SI), a responsive methodology is required for contractors' selection process, which combines judgement and data for an effective outcomes prediction. Design/methodology/approach: Theoretically grounded on a system theory, sustainable infrastructure delivery (SID) model has been developed in this study. At the deductive phase of the model is the integration of the ANP (a multicriteria decision-making technique) for data synthesis. To obtain decision criteria, 55 sustainability indicators for contractor selection were identified from the literature review. The criteria were first developed to a web-based questionnaire where respondents were requested to rank the importance of the criteria towards selecting contractors that deliver SI, using Likert scale of 1–5 (where “5” is very important and “1” is not important). The results were analysed using factor analysis. Data were further reduced to 16 variables after multicollinearity issues in the data set had been resolved. To weigh the relative importance of the 16 criteria among contractors, ANP methodology was adopted for the second-round questionnaire. The seven-man decision panel that completed the pairwise comparison survey was selected through a purposeful sampling technique. The final survey results were synthesised by Super Decisions (computer package that implements ANP) trial version to rank contractors' options and predict outcomes. Findings/results: Sensitivity analysis of the research findings reveals that the 16 criteria have differential comparative advantages, which requires critical judgement during contractor's pre-evaluation process. Although the overall priorities rank multinational construction corporations (MCC) higher than local construction companies (LCC), MCC are not absolute to deliver SI. LCC are sensitive to some key criteria that are critical to the actualisation SI agenda. Originality/value: This study fills the gap in the knowledge of SID in Nigeria. The study theoretically suggests a framework to harmonise sustainability indicators in contractor selection. The findings further provide feedbacks that can be incorporated to Government's Ministries, Department and Agencies (MDAs) procurement policy to promote SID.
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Rustandi, Dedi, and Tukas Shilul Imaroh. "ANALYSIS FUZZY AHP FOR OPTIMIZATION CONTRACTOR SELECTION USING MULTI-CRITERIA IN DETERMINING THE BEST ALTERNATIVE CONTRACTOR." Dinasti International Journal of Management Science 2, no. 6 (August 20, 2021): 899–914. http://dx.doi.org/10.31933/dijms.v2i6.959.
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Using inappropriate criteria in contractor’s selection can lead to the failure of a construction project. This study aims to provide an optimal solution for contractor selection using multi-criteria. The criteria were obtained from previous research and concluded in the Focus Group Discussion. The analytical method used is Fuzzy-AHP, involving 14 experts who are registered contractors in the Company who have good performance and the contractor selection process involves a Tender Committee consisting of 5 appointed employees. The conclusion of this study shows that the criteria and weights that can be used for contractor selection are 35% bid, 22% technical ability, 13% financial ability, 11% reputation, 10% management ability and the last safety management with a weight of 9%. Each criterion has sub-criteria indicators with a total of 41 sub-criteria. Result of the consistency ratio below 10%. The conclusion contractor selection analysis using multi-criteria can screen the best contractor.
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Naghizadeh Vardin, Aziz, Ramin Ansari, Mohammad Khalilzadeh, Jurgita Antucheviciene, and Romualdas Bausys. "An Integrated Decision Support Model Based on BWM and Fuzzy-VIKOR Techniques for Contractor Selection in Construction Projects." Sustainability 13, no. 12 (June 20, 2021): 6933. http://dx.doi.org/10.3390/su13126933.
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Sustainable development of any country to some extent depends on successful accomplishment of construction projects, particularly infrastructures. Contractors have a key role in the success of these projects. Hence, the selection of a competent contractor as a complicated and hard decision process has a vital importance in the destiny of any construction project. Contractor selection is in essence a multicriteria decision-making that ought to encompass so many aspects of the project and the client’s requirements on one hand and the capabilities and past records of the contractors on the other hand. Failure in selecting a competent contractor may cause time and cost overruns; quality shortcomings; increasing in claims, disputes and change orders; and even failure of the project. In spite of deficiencies of selecting a contractor by the rule of “the lowest bid price”, it still prevails in many countries including Iran. In this paper, a new contractor selection model based on the best-worst method (BWM) and well-known Fuzzy-VIKOR techniques is proposed as a solution to overcome the deficiencies of the traditional “lowest bid price” rule. An illustrative example of a water channel construction project verified the applicability of the proposed model in practice.
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Chen, Wei Ke, and Chun Wang. "The Engineering Insurance Mode Selection under the EPC Contract Conditions." Applied Mechanics and Materials 405-408 (September 2013): 3442–46. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.3442.
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The general contractors and owners face more risk in the EPC contract. But the people are usually used in international projects, and it has been applied in Chinese, the use of engineering insurance risk transfer, so choose the right insurance coverage critical to the promotion of the EPC contract. This paper by engineering insurance insuring the two modes: We analysis with the owners insured mode and contractors insured mode, that the contractor insured model is more suitable for the EPC contract, control more effective risk, and eventually reach the owners and contractors a common profits.
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Straub, Ab, and Henk-Jan van Mossel. "CONTRACTOR SELECTION FOR PERFORMANCE‐BASED MAINTENANCE PARTNERSHIPS." International Journal of Strategic Property Management 11, no. 2 (June 30, 2007): 65–76. http://dx.doi.org/10.3846/1648715x.2007.9637561.
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Dutch housing associations use new procurement methods such as performance‐based maintenance partnerships for maintaining their housing stock. Such partnerships promise a range of advantages as compared to the traditional tendering of maintenance projects. For contractors a performance‐based approach implies major changes in methods and work processes. A major change within this performance‐based approach is contractors acting as maintenance‐engineering consultants to clients. This requires new activities to be considered, such as providing advice on maintenance strategies, the design of maintenance scenarios, performance measurements and conducting customer satisfaction surveys. The execution of these activities demands additional capabilities from the contractor. The introduction of the Quality Mark for Real Estate Maintenance VGO KEUR is a first step in quality assurance of maintenance contractors in the Netherlands. It guarantees principals that contractors are able to work according performance‐based methods and procedures. A next step in quality assurance should be to establish a clear relationship between maintenance‐engineering and consulting activities and contractor's performance outcome. Rangovo parinkimas eksploatacija grįstų pastatų prežiūros partnerystei Santrauka Vykdydamos pastatu ūkio priežiūra, Olandijos busto asociacijos taiko naujus pirkimo metodus, tokius kaip eksploatacija grįstų pastatu priežiūros partneryste. Tokia partneryste turi daug pranašumu, palyginti su tradiciniais priežiūros projektu konkursais. Rangovams eksploatacija grįstų pastatu priežiūros būdas reiškia reikšmingus metodu ir darbo proceso pokyčius. Esminis su eksploatacija grįstų pastatu priežiūros būdu susijęs pokytis ‐ rangovai klientams teikia priežiūros ir konsultavimo dėlinžineriniu sistemų paslaugas. Todėl reikia pasidomėtinauja veikla, tokia kaip konsultacijos dėl priežiūros strategijų, priežiūros scenarijų rengimas, naudingumo matavimai ir klientu pasitenkinimo apklausų rengimas. Kad galėtu vykdyti tokia veikla, rangovas turi turėti papildomu gebėjimu. Nekilnojamojo turto priežiūros kokybes ženklo VGO KEUR naudojimas ‐ pirmasis žingsnis siekiant Nyderlanduose užtikrinti pastatu ūkio priežiūros rangovu veiklos kokybe. Užsakovams tai garantuoja, kad rangovai sugebės vykdyti veikla, remdamiesi rezultatyviaisiais metodais ir procedūromis. Kitas žingsnis, siekiant užtikrinti kokybe, turėtų būti aiškaus ryšio tarp priežiūros, inžinerines ir konsultavimo veiklos bei rangovo rezultatu nustatymas.
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Amalia, Citra, and Djoko Budiyanto Setyohadi. "Selection Contractors in E-Tendering Procurement Of Goods And Services Bureau Central Kalimantan Using Analysis Network Process." E3S Web of Conferences 73 (2018): 13005. http://dx.doi.org/10.1051/e3sconf/20187313005.
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Selection a contractor in e-tendering procurement of goods and service is an routine activity at tenders of Central Kalimantan government. It task is doing the selection against the contractors of e-tendering that offer documents are uploaded on the website of the official Bureau of procurement of goods and services of Central Kalimantan. Selection a contractor is a complicated task because it must be transparently but the problem is the system still lacks proper judgment for not explained about score points for contractors who do not win. System use fall system and not give a thorough explanation about contractors who did not win the tender. This research aims to be able to resolve the problem using Analysis Network Process to select contractor to provide the weight of each of the criteria. The criteria are administrative, price, technical, and prove the qualifications must be completed by each participant contractor who register on e-tendering. The contributin this research serve as a guide for the Bureau of procurement of goods and services and select the contractor in tenders held so a clear assessment and is open to contractors who follow e-tendering held Bureau Procurement of goods and services in Central Kalimantan.
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Zavadskas, Edmundas Kazimieras, Zenonas Turskis, and Jolanta Tamošaitienė. "CONTRACTOR SELECTION OF CONSTRUCTION IN A COMPETITIVE ENVIRONMENT." Journal of Business Economics and Management 9, no. 3 (September 30, 2008): 181–87. http://dx.doi.org/10.3846/1611-1699.2008.9.181-187.
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Contractor selection is a vital part of the project management cycle and deals with risk and risk management. This paper presents contractors’ assessment and selection based on the multi‐attribute methods in a competitive and risky environment. The model is based on a multi‐attribute evaluation of contractors, the determination of their optimality criterion values according to Hodges‐Lehmann rule. The proposed model could be applied to assessment of construction operations. The attributes of contractor evaluation are selected taking into consideration the interests and goals of the stakeholders as well as factors that influence the process of construction efficiency. The model is based on metric scores. A background and a description of the proposed model are provided and a few key findings from the data analyses are presented.
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Kadhim, Saraa Naseer, and Kadhim Raheim Erzaij. "Examining sensitivity of financial performance at construction projects prequalification stage." Journal of Engineering 26, no. 7 (July 1, 2020): 175–89. http://dx.doi.org/10.31026/j.eng.2020.07.12.
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Construction projects are complicated in nature and require many considerations in contractor selection. One of the complicated interactions is that between performance with the project size, and contractor financial status, and size of projects contracted. At the prequalification stage, the financial requirements restrict the contractors to meet minimum limits in financial criteria such as net worth, working capital and annual turnover, etc. In construction projects, however, there are cases when contractors meet these requirements but show low performance in practice. The model used in the study predicts the performance by training of a neural network. The data used in the study are 72 of the most recent roadwork projects in Bahrain. The results are shown in terms of the sensitivity of changing one variable on the performance of all the 72 projects. These results can reflect on the methods currently used on contractors’ assessments in the tendering stage and support decision-makers in assessing contractors and selecting the best bidders.
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Prasetia, Fajar Tri, and Tukhas Shilul Imaroh. "CONTRACTOR SELECTION ASSESSMENT STRATEGY IN THE UPSTREAM OIL AND GAS INDUSTRY TOWARDS GREEN SUPPLY CHAIN MANAGEMENT." Dinasti International Journal of Economics, Finance & Accounting 1, no. 3 (July 7, 2020): 373–83. http://dx.doi.org/10.38035/dijefa.v1i3.314.
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Nowdays, the level of business competition in managing the upstream oil and gas industry is getting higher, therefore oil and gas companies need to improve their performance and optimize the existing resources in the company. This must also be considered in efforts to manage and save the environment, which is currently the main focus of governments and businesses to preserve the environment. In addition to internal improvements were made, improvements are also needed on the part of contractors/suppliers to support this. In this regard, this study was conducted to develop a strategy for conducting an assessment in the contractors selection/suppliers in the upstream oil and gas industry with the aim of implementing Green Supply Chain Management with the Analytic Hierarchy Process (AHP) method. This study maps the evaluation criteria and sub-criteria in the contractors selection and obtains the main criteria in the contractors selection for the upstream oil and gas industry towards Green Supply Chain Management. Results of the study obtain 6 criteria and 23 evaluation criteria in the contractors selection in the upstream oil and gas industry towards Green Supply Chain Management. The two most important criteria obtained are the Environmental criteria and the Health and Safety criteria, both of which have an assessment weight of more than 50% of the total assessment weight. The next criteria obtained are the Quality (Technical), Technical (Shipping), and Price (Quality) criteria, where these criteria are taken into account in the selection of contractors for the upstream oil and gas industry towards Green Supply Chain Management, so that the spirit of competition remains with the contractor and companies have many options contractor to achieve Green Supply Chain Management.
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Abdul Razak, Nadeera, Obuks Ejohwomu, Peter Fenn, Kamil Okedara, Babatunde Dosumu, and Firdaus Muhammad-Sukki. "Identification of Health and Safety Prequalification Criteria for Contractor Selection in Construction Projects: A Systematic Review." Energies 14, no. 21 (November 3, 2021): 7244. http://dx.doi.org/10.3390/en14217244.
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Selecting an appropriate contractor is a crucial phase that clients normally conduct to execute projects. Extensive research has been conducted on the main contractor selection criteria such as financial stability and technical and management capability. However, few studies focusing on health and safety criteria are being used to assess contractors’ safety performance in the existing selection process. Hence, this paper aims to analyse the existing literature on health and safety criteria for contractor selection in construction. The articles were retrieved using developed search string from renowned databases such as Scopus, Ebscohost, Web of Science, Science Direct and Dimensions. This search resulted in a total of 38 papers which can be systematically reviewed. Six main themes were discovered to represent safety prequalification criteria for construction projects, namely, experience and work history, safety control system, safety policy and management, accident rates and records, safety promotion and environmental concerns. Under these six main themes, there are 25 safety prequalification criteria that have been substantially published in previous literature, and the most-cited criteria are examined. This study brings a significant contribution to construction industry professionals, especially clients, when selecting a capable contractor in construction projects. By identifying the safety prequalification criteria, clients can assess a contractor’s efforts in ensuring safe execution of a project before awarding the contract to them. Additionally, the findings of the present study could contribute towards developing a comprehensive framework on contractor selection criteria that incorporates safety leading and lagging indicators.
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Najiazarpour, Sara, and Homa Pouresfandyani. "Assessment and Selection of Contractors in Specific Contracting Projects with Supply Chain Approach, Using GRAY and AHP Methods as Decision Support." Modern Applied Science 13, no. 4 (March 18, 2019): 51. http://dx.doi.org/10.5539/mas.v13n4p51.
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In our current conditions, it is not possible for all contractors to participate in specific construction project tenders due to the social, political and many other circumstances. Therefore, employers select appropriate contractors in two qualitative and quantitative stages; the second stage criteria are more important than the first stage. In this research, different stages for the evaluation and ranking of contractors in tenders of projects with specific conditions have been investigated. Researchers have tried to provide a comprehensive and complete approach to select a more appropriate contractor as an optimization method. In the first stage of the tender, the researchers used the GRAY method to rank contractors. In the second stage, they used AHP method to assess and rank the criteria of the contractors brought to this stage. Finally, the appropriate contractor selected and announced to the employer.
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Olaniran, Olugbenga Jide. "The effects of cost-based contractor selection on construction project performance." Journal of Financial Management of Property and Construction 20, no. 3 (November 2, 2015): 235–51. http://dx.doi.org/10.1108/jfmpc-06-2014-0008.
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Purpose – This paper aims to present the outcome of a study conducted on the impact that cost-based contractor selection (CBCS) might have on construction project performance. Several criteria are normally used to select construction contractors, competitiveness of the quoted prices of the prospective contractors is one such important criterion. However, choosing contractors solely on the basis of the quoted price may cause poor performance in the construction project. Design/methodology/approach – A quantitative approach was adopted. A critical review of the literature was conducted to develop 50 survey questions relating to the problems that CBCS might have on construction project performance. Findings – Analysis of close data obtained from the survey of construction experts showed the nature of project performance problems associated with the CBCS to be project time delays and non-compliance with construction standards. The major reason they occurred was found to be the reduced profit margin for contractors. Research limitations/implications – The research sample size is small and restricted to construction professionals in Brunei. Practical implications – The study findings present updated information to construction professionals about the inherent impacts of choosing contractors based on cost. Furthermore, this study enhances the approach of selecting contractors within the construction industry. Originality/value – The study made strong and unique arguments about the problems associated with choosing construction contractors based on cost. This study contributes to the body of knowledge relevant to the management of construction projects.
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Andruškevičius, Algirdas. "EVALUATION OF CONTRACTORS BY USING COPRAS - THE MULTIPLE CRITERIA METHOD." Technological and Economic Development of Economy 11, no. 3 (September 30, 2005): 158–69. http://dx.doi.org/10.3846/13928619.2005.9637694.
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Some methods allowing for the selection of the most suitable contractor based on 26 criteria are offered. The bidding procedures of FIDIC, the international organization of consulting engineers are assessed. Contractors are evaluated by a multicriteria decision method COPRAS. The significance of the contractor evaluation criteria is determined by ranking. A description of the criteria and their rankings according to 100‐point scale are provided. A case study of selecting the contractor for the construction of a trade and entertainment centre out often bidders is also described.
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Li, Liping, Igor Martek, and Chuan Chen. "Institutional Factors Impacting on International Construction Market Selection: Evidence from Chinese Contractors." Buildings 12, no. 5 (April 24, 2022): 543. http://dx.doi.org/10.3390/buildings12050543.
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Institutions can be understood as the mechanism by which the rules societies operate under are formulated. As such, the international construction market is heavily affected by institutional factors. International market selection (IMS) is a fundamental decision that project contractors must make when entering the overseas arena. A variety of clues show that institutional factors have a complex impact on contractors’ IMS, but papers in this field tend to cover just one or two institutional factors or even ignore their role. Institutional factors exist in a multi-level social system, and the role of broader institutional factors in contractors’ IMS needs to be systematically explored. This study extensively collects institutional factors predicted to impact contractors’ IMS by literature review, selects 10 specific institutional factors from different perspectives, theoretically deduces their effects on contractor’s IMS, and takes international Chinese contractors’ IMS practice as the empirical research material and collects data for logistic regression analysis to test the assumptions. The results show that the IMS of contractors is affected by institutional factors from different levels and the effect of some factors on IMS must be weighted in a specific context. Specifically, IMSs of Chinese contractors are negatively affected by institutional distance but are not sensitive to the institutional environment. The results also confirm that if the host country and China have signed a trade agreement, belong to the same regional organization, or if China has provided foreign aid to a host country, Chinese contractors are more willing to choose the host market and central enterprises become more active in IMS than other firms. These findings can be expected to supplement IMS decision-making, with the empirical data presented affording an extension to the body of knowledge on contractors’ IMS process.
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Hanák, Tomáš, and Iva Nekardová. "Selecting and Evaluating Suppliers in the Czech Construction Sector." Periodica Polytechnica Social and Management Sciences 28, no. 2 (March 19, 2020): 155–61. http://dx.doi.org/10.3311/ppso.13328.
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Selecting a capable contractor is one of the crucial prerequisites for the successful completion of a construction project. This paper addresses the issue of selecting and measuring the performance of suppliers. Using a web-based questionnaire survey, quantitative data was collected from Czech construction companies that act as main contractors and subcontractors within the supply chain. The data was evaluated by applying absolute and relative frequency, the relative importance index and the chi-square test of independence. The findings revealed several managerial implications for purchasing professionals in both areas. The findings were of interest with regard to the significance of individual selection criteria in the selection of suppliers. Data was analysed on both the usage of performance measurement systems and the frequency of performance measurement. We concluded that somewhat large differences exist between main contractors and subcontractors in terms of the use of selection criteria and that performance measurement is not universally applied in the Czech construction sector.
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Kukoyi, Patricia Omega, Innocent Chigozie Osuizugbo, Hosea Shemang Yohanna, Uche Emmanuel Edike, and Israel Esther Ohiseghame. "Pre-Qualification of Selecting Construction Project Contractors Using Health and Safety Criteria." Journal of Engineering, Project, and Production Management 11, no. 1 (January 1, 2021): 30–36. http://dx.doi.org/10.2478/jeppm-2021-0004.
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AbstractContractors, among other construction stakeholders, are vital in achieving the set goals of a project. Adequately engaging a capable contractor is an important task for a client. This study aims at determining the reasons for clients contending with contractors that are not committed to health and safety (H&S). The study was conducted through a literature review, a questionnaire was developed and distributed to 286 construction stakeholders in the Nigerian construction industry. Cronbach alpha was used to test the reliability of the questionnaire used for data collection. Mean scores (MSs) were adopted to determine the major factors that influence clients’ selections and factor analysis was used to cluster variables of high inter-correlations. Findings from the survey reveal that H&S is not a clients’ goal or a project value hence, H&S is not viewed as a vital pre-qualification criterion for contractor selection. This results in a poor checklist concerning contractors’ quality assurance and inadequate verification of contractors’ H&S history. Therefore, appointing non-compliant H&S contractors. The findings provide information on the influence clients have respecting H&S as a prequalification criterion and towards construction workers’ H&S. This will enable construction stakeholders to make the right decision in the pre-qualification of contractors.
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Ling, Yean Yng, George Ofori, and Sui Pheng Low. "Evaluation and Selection of Consultants for Design-Build Projects." Project Management Journal 34, no. 1 (March 2003): 12–22. http://dx.doi.org/10.1177/875697280303400103.
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The objective of this paper is to construct a model to assist contractors to select design consultants for design-build (DB) projects. A major survey of DB contractors was conducted to gauge the importance of the 40 attributes identified, through mailed standard questionnaire. The principal finding is that 34 of the 40 attributes identified are important for consultant selection and these were used to construct the Consultant Selection Model. The model was tested by six experts, and found to be robust. The conclusion of this study is that consultants who are selected to undertake DB projects need to excel in task performance and contextual performance. Their fees must be competitive and they must have good relationships with the contractor.
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Acheamfour, Victor Karikari, Ernest Kissi, and Theophilus Adjei-Kumi. "Ascertaining the impact of contractors pre-qualification criteria on project success criteria." Engineering, Construction and Architectural Management 26, no. 4 (May 20, 2019): 618–32. http://dx.doi.org/10.1108/ecam-03-2018-0110.
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Purpose The selection of a suitable contractor for a project has a significant impact on project success. In order to avoid the selection of an incapable contractor, the capabilities of contractors must be assessed prior to tendering through pre-qualification. However, the pre-qualification process is characterized by partiality and ambiguity. In view of this, numerous models have been developed to solve the pre-qualification problems. Prior to the development of such models, it is very important to assess how the pre-qualification criteria impact project success criteria so as to aid in the selection of pre-qualification criteria while considering the project and client’s objectives. Therefore, the purpose of this paper is to ascertain the relationship between contractors’ pre-qualification criteria and project success criteria. Design/methodology/approach The study utilized explanatory research design in testing 35 hypotheses. The views of 121 practising quantity surveyors were solicited using a structured questionnaire and analyzed using the partial least square structural equation modeling to validate the hypothesis. Findings In all, 13 of the 35 hypotheses were not supported. The findings indicated a clear relationship between contractors’ pre-qualification and project success. Practical implications Therefore, it is evident that the practice of lowest evaluate bidder is not adequate for providing a satisfactory project outcome. It is, therefore, suggested that more emphasis should be placed on contractor’s technical abilities, health and safety and management capabilities as they have proven to have a significant correlation with the project success. Originality/value This study provides insights to the how various pre-qualification criteria can impact the project success criteria and further contributes to the symbiotic that exist in the literature on pre-qualification and project success.
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Abou-Abed, Fares Nadim. "Algorithmic Provision of System of Optimal Distribution of Tender Projects between Executors by Types of Work in Mining Industry." E3S Web of Conferences 174 (2020): 04015. http://dx.doi.org/10.1051/e3sconf/202017404015.
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Today, in order to manage a mining and industrial enterprise, it is necessary to ensure the planning and management of the project activities of the company at all its stages. During the implementation of the project, at the initial phase of its life cycle, a significant impact on further success is provided by the resource and procurement management subsystem in particular. This subsystem is responsible for the material and technical support of the project, including the processes of acquiring goods, products and services from external supplier organizations: selection of suppliers and contractors and conclusion of contracts with them. In a market economy, the best solution to the problem of selecting performers is possible only in free competition. For this reason, the most commonly used form of selection of contractors for work put forward by the customer is the competitive form. This selection form is implemented in the form of contract bidding, or tender. Due to the breadth of the spread of the competitive form of selection of proposals for work on pre- announced conditions, the problem of selecting performers for a particular project from the number of applicants for the tender becomes urgent. In this case, it is necessary to take into account the requirements for the work execution process and for counterparties with whom contracts are concluded based on the results of tenders. The solution of the problem of the optimal assignment of contractors applying for projects on a competitive basis significantly increases the efficiency of financing distribution, reduces the time frame for the implementation of the work package and produces a general positive economic effect, which determines the relevance of the research topic.
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Mohamad Shukery, Nurshikin, Roslan Amirudin, Nafisah Abdul Rahiman, Hamizah Liyana Tajul Ariffin, and Syamsul Hendra Mahmud. "Selection of Contractor: a Flexible Performance-Based Approach." International Journal of Engineering & Technology 7, no. 3.21 (August 8, 2018): 338. http://dx.doi.org/10.14419/ijet.v7i3.21.17184.
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Contractors are the main players in construction industry. Appropriate selection of contractor is crucial in determining the future performance of a project in any case. Sometimes this selection procedure is performed without proper consideration and deliberate methodology that it merits, thus bringing negative outcomes. This paper proposes a performance-based contractor selection approach that will empower the utilization of expert’s experience and data. A flexible performance-based contractor selection system is proposed to bolster this decision-making process. To characterize and design the system, semi structured interviews and questionnaire surveys were led within public sector concentrating on the way that the selection process is carried out in practice and the evaluation connected with it. A prototype of a Flexible Performance-Based Contractor Selection System (FPCSS) was developed by using Analytical Hierarchy Process (AHP) method. The system is validated by construction industry professionals in public sector. As a conclusion, the FPCSS is a significant tool for contractor selection, by helping organizations to select a competent contractor and decrease the subjectivity of the decision-making process. The advantage as gave by the system favours a reliable indicator to predict performance of construction project by selecting a contractor based on his best performan
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Alshraideh, Maysa, Shereen Ababneh, Elif Elcin Gunay, and Omar Al-Araidah. "A fuzzy-TOPSIS model for maintenance outsourcing considering the quality of submitted tender documents." Eksploatacja i Niezawodnosc - Maintenance and Reliability 23, no. 3 (May 25, 2021): 443–53. http://dx.doi.org/10.17531/ein.2021.3.5.
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The paper provides a multiple-experts Fuzzy-TOPSIS decision-making model for the selection among maintenance contractors based on the quality of tendering documents. The study introduces a set of selection criteria utilizing benefit and cost criteria from literature. The proposed model aggregates subjective linguistic assessments of multiple experts that express their opinions on the degree of importance of criteria and allows multiple decisionmakers to evaluate the compliance of contractors’ documents. For a case study, the model is applied to select among contractors tendering to maintain the heavy-duty cranes of an international steel company from literature. Several decision-making scenarios are investigated, and major changes in the final decision are observed. The changes in obtained results illustrate the need to better address uncertainties in rating and tendering an overqualified contractor at a higher cost.
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Haryanto, Andi Theo. "SELECTION AND EVALUATION SUPPLIER BY CONTRACTOR: CASE STUDY IN INDONESIA." Dimensi Utama Teknik Sipil 6, no. 2 (October 31, 2019): 1–13. http://dx.doi.org/10.9744/duts.6.2.1-13.
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This research will discuss about contractors with concrete suppliers and formwork suppliers. The research is conducted to look for ranking criteria and sub-criteria used by contractors to selecting and evaluating concrete and formwork suppliers. The criteria and sub-criteria are refer to Ho et al., (2007) and three new sub-criteria are added, which are a guarantee, lowest price guarantee, and payment term. The contractor classification is divided into four namely general classification, NPK classification consisting of non-classification; individual; small business, medium business classification, and big business classification. Ranking for criteria and sub-criteria are sought based on the mean value for each classification material both in the context of selection and evaluation. After finding the ranking, it is sought whether there is a difference of importance between the NPK classification, middle, and large of the priority sub-criteria in general classification using the Kruskal Wallis test.
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Sabuncuoglu, A. Oben, and Ali Gorener. "Decision Making Through the Fuzzy TOPSIS Method." International Journal of Research in Business and Social Science (2147-4478) 5, no. 2 (March 22, 2016): 71–82. http://dx.doi.org/10.20525/ijrbs.v5i2.328.
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Construction contractors have a great role in terms of operation work properly in construction project management. An effective contractor selection is most important to the success of any construction projects. Contractor selection is a multi criteria decision making problem which includes qualitative and quantitative characteristics. For the contractor selection problem, this study proposes a combined decision approach, which employs analytic hierarchy process (AHP) and Fuzzy Technique Ordered Preference by Similarity to the Ideal Solution (TOPSIS) methods. In the proposed approach, AHP is used to determine the weights of selection criteria, and Fuzzy TOPSIS is used to select appropriate contractor alternative. Additionally, a real case study in construction industry is presented to illustrate the application of the proposed approach.
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Awad, Adel, and Aminah Robinson Fayek. "Contractor default prediction model for surety bonding1This paper is one of a selection of papers in this Special Issue on Construction Engineering and Management." Canadian Journal of Civil Engineering 39, no. 9 (September 2012): 1027–42. http://dx.doi.org/10.1139/l2012-028.
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Contractor default is one of the major risks that threaten a project’s success in the construction industry. Previous studies have focused mainly on evaluation of the contractor’s financial aspects to predict contractor default. There remains a need for a comprehensive model that has the ability to incorporate the evaluation of all the project aspects, project team, contractual risks, and project management evaluation criteria to predict the possibility of a contractor’s default on a specific construction project. This paper presents a contractor default prediction model (CDPM) from the surety bonding perspective that incorporates these criteria and uses a fuzzy inference system for reasoning. The CDPM provides a more objective, structured, and comprehensive approach for contractor default prediction for surety practitioners, project owners, and for self-assessment by contractors to reduce the risk of contractor default. The multi-attribute utility function was used to develop a group consensus system (GCS) to aggregate the participating experts’ opinions to build the CDPM. The accuracy of the GCS was found to be 91.1%. A novel approach for fuzzy rule base development is applied to develop the rule base for the CDPM. The CDPM was validated using 30 contractor default prediction cases, and the accuracy was found to be 86.5%.
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Gurgun, Asli Pelin, and Kerim Koc. "Contractor prequalification for green buildings—evidence from Turkey." Engineering, Construction and Architectural Management 27, no. 6 (January 30, 2020): 1377–400. http://dx.doi.org/10.1108/ecam-10-2019-0543.
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PurposeCompetent contractors are one of the critical stakeholders to achieve targeted sustainability objectives in green building (GB) projects. Prior to contractor selection, prequalification is an important step, which requires contractors with certain capabilities in addition to traditional features. This study aims to develop a systematic and practical model for prequalification in GB projects using a multi-criteria decision-making (MCDM) approach by adopting the analytical hierarchy process (AHP).Design/methodology/approachThe AHP model with 8 main criteria groups and 25 sub-criteria is structured based on literature review and professional opinions accompanied by a pilot study. Then, interviews with experts, who are experienced in the development and application phases of GB projects in Turkey, are arranged to collect judgements. The agreement levels between different groups of experts are analysed via Pearson's and Spearman's rank correlation coefficient. Model applicability is tested on six hypothetical contractors for practicality.FindingsThe results show that i) financial capabilities, ii) legal status and iii) sustainability groups are the top three main criteria, while i) compliance with schedule requirements of the client, ii) current legal status including suits, iii) negative litigation history records, iv) contractor's compliance capacity to client's sustainability checklist for the proposed project and v) sustainability with lower life cycle cost (durability, maintenance, constructability) are the top five sub-criteria.Originality/valueThere is a gap in the literature analysing contractor prequalification phase in GB projects. This study attempts to fill this lack provided with a practical evaluation tool.
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Zainal Abedin, Mohd Shahril, Siti Rashidah Mohd Nasir, and Abdullah Basri. "CONTRACTORS SELECTION CRITERIA FRAMEWORK FOR CONSTRUCTION PROJECT IN KLANG VALLEY." Journal of Project Management Practice 1, no. 1 (July 30, 2021): 22–34. http://dx.doi.org/10.22452/jpmp.vol1no1.2.
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Malaysia's construction industry is going from strength to strength, with a whole host of newly-announced projects promising to increase activity. Moreover, the construction industry is a very important part of Malaysian economy. The country already has a lot of projects ongoing and under the pipelines, with an ever-changing urban landscape offering plenty of opportunities. The evaluation of project success and the level of success criticality in the development of construction projects in Malaysia are according to the specific requirements and priorities of different project stakeholders and varies from project to project. However, the issues related to maintenance and project functionality are of main concerned to most Government Agencies in Malaysia at the project completion stage apart from client satisfaction on the good services and excellent product deliverables. In the contractor selection stage is commonly used procedure for identifying a pool of competitive, competent and capable contractors from which tenders may be sought. It can aid public and private owners in achieving success by ensuring that only qualified contractor is selected to execute the work. The findings results indicate that several of the criteria highlighted as the most influential criteria of contractor selection for construction project. Another important understanding from the research is that the developing the framework to show the most appropriate ways to select the best contractor for the project. The weightage of each criterion are effective for assessing the technical and commercial tender submission during the tender process. Analysis indicated the top 3 of most influential criteria for contractor selection for construction project in Klang Valley are participation in stakeholders bid process, good tender proposal and method of statement.
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Zhang, Zhe, Zhi Ye Koh, and Florence Ling. "Benchmarking contractors’ financial performance: case study of Singapore." Journal of Financial Management of Property and Construction 25, no. 2 (March 16, 2020): 183–99. http://dx.doi.org/10.1108/jfmpc-03-2019-0024.
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Purpose This study aims to develop benchmarks of the financial performance of contractors and a decision support tool for evaluation, selection and appointment of contractors. The financial benchmarks allow contractors to know where they are relative to the best-performing contractors, and they can then take steps to improve their own performance. The decision support tool helps clients to decide which contractor should be awarded the project. Design/methodology/approach Financial data between 2013 and 2015 of 44 Singapore-based contractors were acquired from a Singaporean public agency. Benchmarks for Z-score and financial ratios were developed. A decision tree for evaluating contractors was constructed. Findings This study found that between 57% and 64% of contractors stayed in the financially healthy zone from 2013 to 2015. Ratios related to financial liabilities are relatively bad compared with international standards. Research limitations/implications The limitation is that the data is obtained from a cross-sectional survey of contractors’ financial performance in Singapore over a three-year period. Regarding the finding that ratios relating to financial liabilities are weak, the implication is that contractors need to reduce their financial liabilities to achieve a good solvency profile. Contractors may use the benchmarks to check their financial performances relative to that of their competitors. To reduce financial risks, project clients may use these benchmarks to examine contractors’ financial performance. Originality/value This study provides benchmarks for contractors and clients to examine the financial performance of contractors in Singapore. A decision tree is provided to aid clients in making decisions on which contractors to appoint.
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Garber, M. P., and K. Bondari. "Landscape Architects as Related to the Landscape/Nursery Industry: II. Selection of the Production Nursery and Plant Availability." Journal of Environmental Horticulture 10, no. 2 (June 1, 1992): 73–77. http://dx.doi.org/10.24266/0738-2898-10.2.73.
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Abstract Information concerning the role of the landscape architect in verifying plant availability and selection of the production nursery where landscape contractors obtain plants can help growers develop effective marketing plans. A survey of Georgia landscape architects indicates that about 84% of the respondents confirm availability of plant material specified. A higher percentage of large firms (about 92%) confirm availability compared to medium (85.7%) and small (79.3%) firms. The three most frequently used sources of information for landscape architects to confirm plant availability are favorite local grower, nursery catalogs, and landscape contractor likely to install plants. The top three choices are the same regardless of firm size. Survey results demonstrate that landscape architects not only confirm availability of plants but also play an important role in selecting the production nursery where landscape contractors obtain plants. Approximately 61% of all respondents indicate they determine/recommend the nursery where landscape contractors obtain plants. There is a significant difference among firm size in response to this question with large firms most active in selecting the production nursery (about 92%) followed by medium (57%) and small (50%) firms. The two factors that most influence the decision of large firms are plant quality and plant varieties. Large firms are more price conscious than medium or small firms. The results suggest that growers can enhance their sales by marketing their product directly to landscape architects.
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Kusuma Wardhani, Yuliana Duwi. "Implementation of Contractor Safety Management System as a Requirement for Partners at a Petrochemical Company." Indonesian Journal of Occupational Safety and Health 11, no. 1 (March 30, 2022): 1–11. http://dx.doi.org/10.20473/ijosh.v11i1.2022.1-11.
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Introduction: Data Report Safety Performance Indicator for Oil and Gas Producers (OGP) in 2018 recorded 2 deaths at the company and 29 deaths occurred to the contractors, with Fatal Accident Rate (FAR) in the company of 0.31 accidents per 1 million working hours and in contractors of 1.20 accidents per 1 million work hours. PT Pupuk Kujang as a petrochemical company has a high-risk of implementation of Contractor Safety Management Systemn (CSMS) to protect safety of contractors. This research aims to evaluate the implementation of Contractor Safety Management System (CSMS). Methods: This study was a descriptive study with an observational method for data collection, and this study was cross-sectional. The variable studied was Contractor Safety Management System (CSMS) including CSMS stages and documents. Results: PT Pupuk Kujang has implemented six stages for the implementation of Contractor Safety Management System (CSMS), namely identification and risk assessment, prequalification, selection, initial work activities, assessment during work, and final assessment of work. However, some shortcomings were observed in the implementation of pre-qualification stage where before being declared to have passed the pre-qualification assessment stage, a local contractor has been appointed as the winner of the tender. Conclusion: The implementation of Contractor Safety Management System (CSMS) at PT Pupuk Kujang still does not run well because there are deficiencies in the prequalification stage.Keywords: contractor safety management system, pt pupuk kujang, prequalification
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Gao, Guang-Xin. "Sustainable Winner Determination for Public-private Partnership Infrastructure Projects in Multi-Attribute Reverse Auctions." Sustainability 10, no. 11 (November 9, 2018): 4129. http://dx.doi.org/10.3390/su10114129.
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Selection of a sustainable private partner (contractor) is significant to ensure the success of public-private partnership (PPP) projects. In recent years, multi-attribute reverse auctions (MARAs) are widely used in public procurement to select the desirable contractor. However, the MARA mechanism is neglected in the existing studies. The purpose of this paper is to present a MARA framework for selecting a sustainable contractor in PPP infrastructure projects, in which the MARA rules and an integrated winner determination method are involved. In particular, the sustainability considerations are incorporated in the MARA rules, which can make the potential contractors have incentives to improve their sustainable performance. Within the MARA rules, based on the trapezoidal fuzzy linguistic representation model and the classical two-additive Choquet (TAC) integral operator, a winner determination method is developed to evaluate and rank potential contractors, in which both the bid evaluation and the interrelationships among bid evaluation attributes are considered. Finally, the potential of the proposed method is shown through an illustrative case of a PPP project of a subway construction in China. The MARA framework investigated helps governments make reliable decisions in sustainable procurement and thereby facilitates successful project delivery.
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Haryadi, Febri. "Faktor-Faktor yang Berpengaruh dalam Pemilihan Subkontraktor dan Pengaruhnya Terhadap Waktu Pelaksanaan." Syntax Idea 3, no. 12 (December 25, 2021): 2599. http://dx.doi.org/10.36418/syntax-idea.v3i12.1666.
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Prime contractors rely heavily on subcontractor services to lower costs and increase efficiency on construction projects. Subcontractors perform certain tasks that the main contractor cannot perform efficiently. To get a competent subcontractor, it is necessary to hold the selection of subcontractors. The selection of subcontractors becomes very important in keeping pace with the growth of the construction industry, so the main contractor as the construction executor requires a subcontractor or specialist contractor for certain jobs that require specialized expertise. This study was conducted by reviewing the findings of several related scientific journals, so that the factors that influence the selection of subcontractors and the most influential factors are the experience of doing similar work. In addition, it also found its effect on the time of implementation of the project.
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Ogunsemi, D. R., and I. O. Aje. "A model for contractors’ selection in Nigeria." Journal of Financial Management of Property and Construction 11, no. 1 (March 2006): 33–44. http://dx.doi.org/10.1108/13664380680001078.
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Eriksson, Per Erik, Sofia Lingegård, Lena Borg, and Johan Nyström. "Procurement of Railway Infrastructure Projects – A European Benchmarking Study." Civil Engineering Journal 3, no. 4 (April 30, 2017): 199–213. http://dx.doi.org/10.28991/cej-2017-00000086.
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This benchmarking study compares how railway investments are procured in five European countries: Sweden, Norway, Germany, the Netherlands, and the UK. In total, 19 procurement managers and project managers were interviewed. This study compares the national rail clients’ procurement strategies regarding: delivery system, reward system, contractor selection, and collaboration model. Historically, these clients have used in-house production. The first step towards a gradually increased usage of the market was to outsource the construction activities while keeping the design and development competence in-house. All five countries have mainly used Design-Bid-Build contracts in their initial outsourcing. However, the last few years there is a discernible trend in Sweden, Norway, the Netherlands and the UK towards allocating more design and development responsibilities to contractors (i.e. Design-Build contracts) and increasing the strategic focus on cooperation. The UK and the Netherlands are forerunners in this trend that can be viewed as a third step in the transition towards a market oriented railway sector. Norway and Sweden is in the middle of this transition, whereas Germany has not initiated this change. The transition towards a gradually increased usage of the market has two main dimensions; degree of cooperation and degree of contractor freedom, which differs among the countries. The UK and Sweden focus on increasing both these dimensions, while The Netherlands and Norway mostly focus on increasing the degree of contractor freedom. Germany still limits both dimensions by performing design and development in-house and letting contractors compete for construction work in Design-Bid-Build contracts. Due to historical and cultural reasons, Deutsche Bahn in Germany is very hesitant to engage in collaboration with external suppliers; focusing on competition is considered more appropriate and less controversial.