Cost-influencing risk factors in infrastructure projects on soft soils

Low, W W; Wong, K S and Lee, J L (2022) Cost-influencing risk factors in infrastructure projects on soft soils. International Journal of Construction Management, 22(2), pp. 229-241. ISSN 1562-3599

Abstract

In view of economic growth, infrastructure projects are gradually increasing in terms of quantity, size and complexities. As such, construction of infrastructure projects on soft soils is unavoidable. This poses challenges in infrastructure development as infrastructure construction is vulnerable to greater risks. Review of the literature showed that research on risk assessment of infrastructure projects on soft soils is deficient. Hence, this research was focused on cost-influencing risk factors during the construction phase. Analytical hierarchy process (AHP) was used to determine the risk prioritization of infrastructure projects on soft soils through questionnaire survey. It is found that controllable (internal) risk factors, such as legal and project-client risks and uncontrollable (external) risk, such as economic and soil condition risk play a critical role in infrastructure project’s cost on soft soils during the construction stage.

Item Type: Article
Uncontrolled Keywords: analytic hierarchy process; construction; infrastructure; risk assessment; risk management; soft soils
Index terms: infrastructure development, survey, infrastructure construction, complexity, risk prioritization, questionnaire, analytical hierarchy process, construction phase, economic growth, infrastructure project, risk assessment, soft soil, risk management, risk factor
Subjects: geotechnical engineering, infrastructure and transport systems, decision-making and optimization, systems engineering, environmental hazards, economic development, civil engineering, infrastructure engineering, financial risk, project delivery, risk assessment, data collection methods
Topics: Risk Management, Sustainability, Cost Management, Engineering Principles, Research Practice, Project Management
Descriptive scope: 4 PCEA

N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here