A risk and vulnerability ontology for construction projects

Download

index.pdf

Date

2008

Author

Fidan , Gülşah

Metadata

Show full item record

Item Usage Stats

281
views

129
downloads

Risk is an uncertain event which will cause deviation in pre-defined objectives, if it occurs. Risk management aims to identify risks, quantify their impacts and develop strategies to mitigate them to ensure project success. Within the context of risk management studies, risk models are usually designed to simulate the project performance under various scenarios. For risk modeling, the statistical link between the risk events and their consequences is scrutinized. However, this approach has a limitation as the influence of the “system” is neglected during modeling the relation between risk sources and consequences. The term “vulnerability” is used to describe internal characteristics of a system which influence this relationship. Management of vulnerabilities in addition to risks is essential for the success of risk management. However, there is no consensus on an appropriate definition of vulnerability parameters and their influence on construction projects. One of the aims of the study is to identify the vulnerability factors for construction projects and to propose a framework which portrays the relationship between risk and vulnerability. For this purpose, a detailed literature survey is performed to define the determinants influencing the level of vulnerability. In addition, case studies were conducted with Turkish contractors to explore the relationships between risk events, project vulnerabilities and project performance. Another objective of the study is to propose a risk and vulnerability ontology which provides a definite vocabulary and machine-comprehensible common understanding of the developed framework. Developed ontology will further be used to form a database for risk and vulnerability management.

Subject Keywords

Civil engineering.

URI

http://etd.lib.metu.edu.tr/upload/12609793/index.pdf
https://hdl.handle.net/11511/17772

Collections

Graduate School of Natural and Applied Sciences, Thesis

Suggestions

OpenMETU
Core

A probabilistic schedule delay analysis in construction projects by using fuzzy logic incorporated with relative importance index (RII) method Özdemir, Mustafa; Gündüz, Murat; Department of Civil Engineering (2010) The aim of this thesis is to propose a decision support tool for contractors before the bidding stage to quantify the probability of schedule delay in construction projects by using fuzzy logic incorporated with relative importance index (RII) method. Eighty three (83) different schedule delay factors were identified through detailed literature review and interview with experts from a leading Turkish construction company, then categorized into nine (9) groups and visualized by utilizing Ishikawa (Fish Bone)...
A conceptual performance measurement framework for construction industry Işık, Zeynep; Birgönül, Mustafa Talat; Department of Civil Engineering (2009) The performance assessment done by objective measures have now been replaced with subjective measures. Within the context of this research; interdependencies between a construction company’s “resources and capabilities”, “project management capabilities”, “strategic decisions”, “strength of relationships with other parties” and “external factors” with “project performance” and “company performance” were investigated from a resource based perspective which put forward intangible assets of the company. To ach...
A generic risk and vulnerability assessment framework for international construction projects Özcan, Gülbin; Dikmen Toker, İrem; Department of Civil Engineering (2008) Project Risk Management (PRM) comprises of identification and assessment, analysis and mitigation of risk factors in order to meet the project objectives. Risk identification and assessment process has the greatest importance as the risk models are constructed based on previously defined risk sources and their interrelations. Although previous studies have concentrated on the relation between risk events and their consequences, the link between them must be modeled by considering the various chains of risk ...
Limitations on point-source stochastic simulations in terms of ground-motion models Yenier, Emrah; Akkar, Sinan D.; Department of Civil Engineering (2009) In this study, the limitations of point-source stochastic simulations are investigated in terms of fundamental geophysical parameters. Within this context, a total of 6000 synthetic ground motions are generated for various magnitude (5.0 ≤ Mw ≤ 7.5), source-to-site distance (less than 100 km), faulting style (shallow dipping and strike-slip) and site class (soft, stiff and rock) bins. The simulations are performed in two main stages: (1) the acceleration time series at outcropping very hard rock sites are s...
Institutionalization of construction firms: Turkish contractors’ experience Yavuzyılmaz, Özlem; Birgönül, Mustafa Talat; Department of Civil Engineering (2010) Literature studies on institutionalization are mainly predicated on repetitive work performing sectors, in which firms are more prone to developed institutionalization processes in literature. But, in this study, it is aimed to examine reasons behind low tendency of construction firms to institutionalization process in Turkey. In literature, two main obstacles against institutionalization are shown as firms’ resistance to change and founder family acts on firm. So, family businesses and their effects on fir...

Citation Formats

G. Fidan, “A risk and vulnerability ontology for construction projects,” M.S. - Master of Science, Middle East Technical University, 2008.