Procuring Governmental Megaprojects: Case Study

Nicał, Aleksander; Wodyński, Wojciech

doi:10.1016/j.proeng.2015.10.045

Cited by 8 publications

(2 citation statements)

References 2 publications

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“…A set of proper criteria and mathematical tools (such as computer calculation algorithms with multi-criteria analysis) could significantly improve objective decision-making [26]. Moreover, these mathematical tools can be implemented, as support in tendering procedures e.g., governmental megaprojects [80]. The paper presents the following multicriteria assessment methods (two well known, and two recently invented): Analytic Hierarchy Process (AHP), Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) [1], the FUCOM method [7,40], and the Measurement of Alternatives and Ranking according to a COmpromise Solution (MARCOS) method [41].…”

Section: Description Of Selected Methodsmentioning

confidence: 99%

Pareto Optimal Decisions in Multi-Criteria Decision Making Explained with Construction Cost Cases

et al. 2020

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In multi-criteria decision-making (MCDM) problems the decision-maker is often forced to accept a not ideal solution. If the ideal choice exists, it would be certainly chosen. The acceptance of a non- ideal solution leads to some inadequate properties in the chosen solution. MCDM methods help the decision-maker to structure his needs considering different units, in which the properties of the solutions are expressed. Secondly, with MCDM tools the assessment of the available solutions can be calculated with consideration of the decision-maker’s needs. The incorporation of the cost criterion into the decision maker’s preferences calculation, and the solution assessment calculation, deprives the decision-maker of the ability to calculate the financial result of the decision he must make. A new multi-criteria decision making with cost criterion analysed at the final stage (MCDM-CCAF) method is developed based on principle of Pareto optimal decisions. It is proposed to exclude the cost criterion from the MCDM analysis and consider it at the final phase of the decision-making process. It is illustrated by example solutions with consideration of cost criterion and without it. It is proposed to apply the invented post-processing method to all MCDM analyses where the cost criterion of analysed variants is considered.

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Section: Description Of Selected Methodsmentioning

confidence: 99%

Pareto Optimal Decisions in Multi-Criteria Decision Making Explained with Construction Cost Cases

et al. 2020

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“…Therefore, it is necessary to develop a tool enabling finding the optimal transportation strategy, minimizing the cost, while meeting the needs of every workstation and taking into account the transportation means capacity. The issue of finding an appropriate transportation strategy is also partly related to decision-making problems in construction (Ibadov 2018) and project management with the use of precast concrete elements (Nicał and Wodyński 2015). High transportation costs inside precast concrete plants often have an impact on the cost of the entire construction project and require appropriate preventive measures at the project management stage.…”

Section: Introductionmentioning

confidence: 99%

Optimizing transportation in the precast concrete plants

Nicał

2021

Arab J Geosci

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In addition to aggregates, cement, water and reinforcement, transportation is one of the key aspects in operating a precast concrete manufacturing plant. The cost of transportation in precast concrete manufacturing plants is closely related to electricity prices. Despite intensive efforts to implement renewable energy sources, still, 2/3 are non-renewable sources, such as coal, natural gas and oil. Taking into account the negative impact on the environment associated with the exploration of non-renewable resources and the observed increase in electricity prices, it is necessary to find alternative solutions that minimize environmental and financial costs. The paper presents a model for the selection of optimal transportation system inside the precast concrete manufacturing plant. It ensures the fullest possible use of equipment resources, in this case, rail trolleys capacity, and minimization of their journey number. The paper describes three internal transportation systems that are shuttle, radial and circular. Moreover, the paper contains a case study, concerning the determination of the optimal transportation program between workstations. As a result of the analyses carried out, a model was developed, including the strategy of journey planning with the assumption of minimum costs and maximum use of the capacity of rail trolleys.

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Barriers and Challenges for Public Procurement Integrity in Iraq: Systematic Review Study

Alsamarraie¹,

Ghazali²

2023

KSCE J Civ Eng

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Procuring Governmental Megaprojects: Case Study

Cited by 8 publications

References 2 publications

Pareto Optimal Decisions in Multi-Criteria Decision Making Explained with Construction Cost Cases

Pareto Optimal Decisions in Multi-Criteria Decision Making Explained with Construction Cost Cases

Optimizing transportation in the precast concrete plants

Barriers and Challenges for Public Procurement Integrity in Iraq: Systematic Review Study

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