Managing construction risks and uncertainties

2019 ◽  
pp. 285-305
Author(s):  
Adekunle S. Oyegoke ◽  
Oluwaseyi A. Awodele ◽  
Saheed Ajayi
Keyword(s):  
Construction Risks

scholarly journals Építőipari kockázatok rétegei = Analysis of construction risks of layer

2017 ◽  
Vol 2 (4) ◽  
pp. 92-101
Author(s):  
Imre Cserpes ◽  
József Szabó
Keyword(s):  
Construction Risks

A kockázat és a bizonytalanság nagyon régóta filozófiai, elvi viták tárgya. Mindkét fogalom azt a törekvést szolgálja, hogy jövőbeli események természetét és hatásait elemezzük, és előre jelezzük. Különbségük viszont abban áll, hogy elemzésük más-más módon lehetséges. A bizonytalanság félelmet keltő, nehezen elemezhető, a kockázat pedig adatokkal jobban ellátott, módszertanilag könnyebben megközelíthető, ezért elfogadhatóbb, kezelhetőbb jelenség. A cikk elméleti része azt állítja, hogy a kockázat és a bizonytalanság egy kockázati spektrumot jelöl ki. A következő állítás az, hogy a spektrum több egymásra rakódott rétegből áll: a kockázat és a bizonytalanság a két szélső pozíciót foglalja el.

Investigating risk of bridge construction project: exploring Suramadu strait-crossing cable-stayed bridge in Indonesia

2020 ◽  
Vol 12 (1) ◽  
pp. 127-142
Author(s):  
Citra S. Ongkowijoyo ◽  
Argaw Gurmu ◽  
Andi Andi
Keyword(s):  
Large Scale ◽  
Quantitative Methods ◽  
Practical Implication ◽  
Rank Correlation ◽  
The Body ◽  
Content Type ◽  
Cable Stayed Bridge ◽  
Spearman’S Rank Correlation ◽  
Risk Event ◽  
Construction Risks

Purpose The complexities in strait-crossing cable-stayed bridge project are increasing the risks. This study aims to identify and analyze the significant and worth-considered construction risks of the first, biggest and longest spanned strait-crossing bridge project in Indonesia. Design/methodology/approach As many as 32 risk events were identified and determined as the risks that exist and can be represented in the Suramadu bridge project context. Data was collected through a design-based questionnaire disseminated to experts involved in the project as well as semi-formal interviews. Several quantitative methods were applied to analyze the significant risks, such as relative importance index, Spearman’s rank correlation test and Mann–Whitney U test. Findings The analyses reveal that “unexpected natural behavior” confirmed by both contractor and consultant parties is the most significant and crucial risk event. Another risk event found to be significant is the “delayed payment.” On the other hand, it is also found that several risks within the legal category are found to be less significant compared to other major risk events. Research limitations/implications The results of the present research should be interpreted in the context of several limitations. Given these possible concerns regarding the generalizability of the findings, along with the relatively low rate of participants in the current research, additional studies are needed to provide a more complete picture of stakeholder perceptions who are involved directly in the construction environment as well as to identify more construction risks specifically in the large-scale bridge project. Practical implications This study has provided fundamental contributions to the body of knowledge and practical implication to promote and assist decision-makers toward developing a comprehensive risk assessment of a large-scale bridge project. Originality/value The analyses of outcomes and discussion, as well as the findings of this research, have shed light on the construction risks understanding, which contributes to delivering a theoretical framework for achieving large-scale bridge project success.

Optimizing safety-measure combinations to address construction risks

2020 ◽  
pp. 1-17
Author(s):  
Qingwen Zhang ◽  
Hongling Guo ◽  
Pin-Chao Liao ◽  
Dongping Fang ◽  
Man Fu
Keyword(s):  
Safety Measure ◽  
Construction Risks

Design and construction risks in BOT type mega transportation projects

2019 ◽  
Vol 26 (10) ◽  
pp. 2223-2242 ◽  
Author(s):  
Hande Aladağ ◽  
Zeynep Işık
Keyword(s):  
Risk Factors ◽  
Risk Mitigation ◽  
Lessons Learned ◽  
Mitigation Measures ◽  
Occupational Accidents ◽  
Content Type ◽  
Transportation Projects ◽  
Construction Risks ◽  
Design And Construction

Purpose In build-operate-transfer (BOT) transportation projects, design and construction phases are critical in terms of their effect on time and cost overruns. The purpose of this paper is to identify the role of risk factors affecting these phases and their significance level for BOT transportation projects. Design/methodology/approach Design and construction risks were determined and then validated by focus group discussions. Afterwards, an illustrated case study was presented to better understand the effects of determined risks in a BOT mega transportation project. As the last step of the study, the fuzzy analytical hierarchy process method was used to prioritize risk factors. Findings The prominent risk factors were found out as occupational accidents, integration between design and construction phases and excessive design variations. Research limitations/implications Different kinds of BOT transportation projects in different countries might be executed very differently considering specific social, political, economic and other factors. However, the results of the study are important in terms of the specific lessons learned from the case study that can be used as a foundation for developing possible risk mitigation measures. Originality/value Though the risk management of BOT projects has been investigated frequently in the literature, there is a knowledge gap in the quantitative evaluation of risk significance specific to design and construction risks. The prioritization of determined risks with an associated case from a mega transportation project will contribute to the BOT project practitioners about possible challenges in design and construction phases in BOT mega transportation projects.

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