在尼日利亚建筑业实施可持续建筑实践的风险

IF 1.8 Q3 MANAGEMENT
P. Okoye, K. Okolie, I. Odesola
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引用次数: 4

摘要

本研究通过对尼日利亚256名建筑专业人员进行问卷调查,评估了与可持续建筑实践实施相关的风险水平。它确定了47个风险因素,它们具有不同的发生可能性和影响程度。基于均值法和风险优先级数的定量风险分析结果显示,发生可能性最高的3个风险因素分别是可持续材料和设备的缺乏、施工技术和工艺的复杂和不熟悉、初始可持续建设成本高;而影响最大的三个风险因素是初始可持续建设成本高、项目参与者之间沟通不良和效率低下、可持续材料和设备成本高。关键指数结果确定了23个关键风险因素,这些因素主要与知识和意识、成本、监管框架、建筑材料和社会经济问题有关。但经Wilcoxon sign -rank检验,差异有统计学意义(z = -3.207, p0.05)。因此,研究建议对建造业从业员进行多元风险管理方法的培训,并通过教育建造业持份者,提高他们对可持续建筑概念的认识。它进一步建议通过尼日利亚建筑和道路研究所(NBRRI)等研究机构开发新的可持续和负担得起的建筑材料,为成功的可持续建筑项目提供适当的监管和政策框架。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Risks of Implementing Sustainable Construction Practices in the Nigerian Building Industry
This study assessed the risks level associated with implementation of sustainable construction practices through a questionnaire survey distributed to 256 building professionals in Nigeria. It identified 47 risk factors with different likelihood of occurrence and magnitude of impacts.  A quantitative risk analysis result based on mean value method and risk prioritisation number showed that the three top-ranked risk factors with highest likelihood of occurrence were unavailability of sustainable materials and equipment, more complex and unfamiliar construction techniques and processes, and high initial sustainable construction costs; whereas the three top-ranked risk factors with highest magnitude of impacts were high initial sustainable construction costs, poor and inefficient communication among project participants, and high cost of sustainable materials and equipment. The criticality index result identified 23 critical risk factors which mostly related to knowledge and awareness, cost, regulatory framework, building materials and socioeconomic issues. However, the Wilcoxon Signed-rank test result indicated that there is significant difference (z = -3.207, p<0.001) between the likelihood of occurrence and magnitude of impacts of the risks factors associated with implementation of sustainable construction practices in Nigeria of which the effect was moderate (r = 0.468). Furthermore, the study revealed that there is no significance difference in the risk level of the risk factors associated with implementation of sustainable construction practices based on the respondents’ roles (p>0.05). The study, therefore, recommended for training of construction practitioners in the multi-risk management approaches and increasing awareness through education on sustainable construction concept for building industry stakeholders. It further recommended for developing of new sustainable and affordable building materials through research institutes like Nigerian Building and Road Research Institute (NBRRI) with appropriate regulatory and policy frameworks for successful sustainable building projects.
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来源期刊
CiteScore
3.80
自引率
6.20%
发文量
0
审稿时长
20 weeks
期刊介绍: Construction Economics and Building (formerly known as the Australasian Journal of Construction Economics and Building [AJCEB]) is a peer reviewed, open access publication for original research into all aspects of the economics and management of building and construction, quantity surveying and property management as well as construction and property education. It is free for authors, readers and libraries.
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