scholarly journals Uncertanties and Risk Analysis on Ports Construction Projects Considering Technological and Market Strategic Factors

Author(s):  
Rita de Cassia Monteiro Moraes ◽  
Alcebíades Negrão MAcedo ◽  
André Augusto Azevedo Montenegro Duarte ◽  
Hito Braga de Moraes ◽  
Luciano Pinto de Moraes Neto ◽  
...  

This article appropriates a new methodology for evaluating port projects involving not only economic analysis, but also strategic factors, technological and market, wich provide greater security and assertiveness on the search for the development of a Hub Port model as an option to optimize the logistics of port operations. To achieve the objectives of the proposal, a technical and economic analysis model was developed to demonstrate the feasibility of the project with the inclusion of technological features (deep of ships, modes of transport linking the port to its region of land influence, expansion area) and market components (cargo demands, free trade zone, distance from the main centers of world trade) that decisively interfere in the attractiveness of the project. Linked to this proposal, a risk analysis was carried out, including uncertainties involving economic and strategic aspects, with market and technological variables. To achieve the objectives of the study, the Monte Carlo method operated by the software “@RiskTM” was used, where the analyzes of positive and negative interferences in the project were carried out. To evaluate the proposed methodology, it was applied in two cases studies of the feasibility of a new logistics platform in Brazil and Africa, with the implementation of an offshore cargo concentrator port. One was in the State of Pará, in northern Brazil, and the other in Dakar, Senegal, which can integrate the entire South America and Africa, respectivaly. The results of those analysis show very favorable indicators for the implementation of the proposed projects. Considering that, strategic factors introduced in the study, the greatest influences were: transport modes that link the port to the land influence zone and the draft of the ships. For the offshore port of Pará, strategic factors boosted the viability result by approximately 55% for a 95% probability of success and for Dakar, in Africa, the results were 100%, both for a 14% rate and a life span of 30 years showing that strategic factors are elements very importatants, as they produced almost 100% and 70% elasticity in the results, respectivaly, so they should be considered in feasibility studies of hub ports in addition to tradicioanl economic analysis.

2021 ◽  
Vol 13 (4) ◽  
pp. 2034
Author(s):  
Chien-Liang Lin ◽  
Bey-Kun Chen

Risks inevitably exist in all stages of a project. In a construction project, which is highly dynamic and complex, risk factors affect the expected achievement rates of the three main performance goals, namely schedule, cost, and quality. A comprehensive risk management procedure requires three crucial steps: risk confirmation, analysis, and treatment. Risk analysis is the core of risk management. Through structural equation modeling, this study developed a risk analysis model that takes a different perspective and considered the occurrence probability of risk events and the extent to which these events affect a project. The contractor dimension was discovered to exert the strongest influence on an overall project, followed by the subcontractor and design dimensions. This paper proposes a novel construction project risk analysis model, which considers the entire project. The proposed model can be used as a reference for risk managers to make decisions about project risks, so as to achieve the ultimate goal of saving resources and the sustainable operation of the construction project.


2012 ◽  
Vol 614-615 ◽  
pp. 1939-1944
Author(s):  
Lei Li ◽  
Wei Chen ◽  
Jian Cheng Wan

This paper presents that Aluminium Conductor Composite Core (abbreviated as ACCC) is suitable for using in reconstructed overhead line projects, but is not economical for using in new construction projects in China. When ACCC can be used in new overhead line projects, the cut-off point price is twice of the conventional Aluminium Conductor Steel Reinforced (abbreviated as ACSR) under same section,and further analysis of price components of ACCC is considered that the prices could decrease further. In China, ACCC will have application value for large area popularization.


1992 ◽  
Author(s):  
Thomas P. Frazier ◽  
John J. Cloos ◽  
Matthew S. Goldberg ◽  
Alec W. Salerno ◽  
Kathryn L. Wilson

Desalination ◽  
2021 ◽  
Vol 503 ◽  
pp. 114925
Author(s):  
David von Eiff ◽  
Pak Wai Wong ◽  
Yonggang Gao ◽  
Sanghyun Jeong ◽  
Alicia Kyoungjin An

2021 ◽  
Vol 13 (4) ◽  
pp. 1932 ◽  
Author(s):  
Reza Kiani Mavi ◽  
Denise Gengatharen ◽  
Neda Kiani Mavi ◽  
Richard Hughes ◽  
Alistair Campbell ◽  
...  

This paper aims to identify the major research concepts studied in the literature of sustainability in construction projects. Two bibliometric analysis tools—(a) BibExcel and (b) Gephi, were used to analyze the bibliometrics indices of papers and visualize their interrelations as a network, respectively. Therefore, a research focus parallelship network (RFPN) analysis and keyword co-occurrence network (KCON) analysis were performed to uncover the primary research themes. The RFPN analysis clustered the studies into three major categories of evaluating sustainability, project management for sustainability, and drivers of sustainable construction. The KCON analysis revealed that while each paper had a different focus, the underlying concept of all clusters was sustainability, construction, and project management. We found that while ‘sustainability’ was the leading keyword in the first cluster, i.e., evaluating sustainability, it was the second top keyword with the eigenvector centrality of over 0.94 in the other two clusters. We also found that the concept of sustainability should be included in construction projects from the early stages of design and feasibility studies and must be monitored throughout the project life. This review showed that previous researchers used a variety of statistical and mathematical techniques such as structural equation modelling and fuzzy decision-making methods to study sustainability in construction projects. Using an integrated approach to identifying the research gaps in this area, this paper provides researchers with insights on how to frame new research to study sustainability in construction projects.


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