Sustainable construction and demolition waste management in Somaliland: Regulatory barriers lead to technical and environmental barriers

Negash, Yeneneh Tamirat; Hassan, Abdiqani Muse; Tseng, Ming‐Lang; Wu, Kuo‐Jui; Ali, Mohd Helmi

doi:10.1016/j.jclepro.2021.126717

Cited by 65 publications

(66 citation statements)

References 32 publications

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“…Although this impact is not as strong as economic and social impacts, it has a medium to large effect on the overall model, which is consistent with the findings of [44]. Factors such as environmental pollution, environmental impacts of landfilled waste, and detrimental impacts of illegal waste dumping have been proven effective in WMH in many studies [10,114].…”

Section: Synthesis Of Empirical Findingssupporting

confidence: 75%

“…A significant obstacle to the development and implementation of SCDWM practices is the presumption that these practices result in the augmentation of project costs [10,24]. Lockrey, Nguyen, Crossin and Verghese [56] highlighted the role of contractors' limited knowledge, awareness, and inadequate community involvement as the main barriers to implementing SCDWM practices.…”

Section: Social Aspect Of Cdwmmentioning

confidence: 99%

“…Insufficient supervision and weak policies have also been addressed as major obstacles in achieving sustainability in the construction industry [64,65]. Besides, the role of governance in CDWM has been highlighted in the work of many researchers in the form of administrative, including regulations, technical considerations, management, and responsibility issues [10,59,66,67].…”

Section: Administrative Aspect Of Cdwmmentioning

confidence: 99%

“…The estimated quantity of globally produced CDW each year is over 10 billion tonnes [6,7], of which almost 9.5 million tonnes is produced in Malaysia [8]. Excessive CDW generation, along with the low recycling rate of almost 15% in Malaysia [9] have prompted the need for a sustainable management mechanism for CDW, in which economic benefits, social impacts, and environmental control are fulfilled [10][11][12]. Thus, sustainable construction and demolition waste management (SCDWM) is taken into consideration, which encompasses reducing raw material consumption, reusing materials, appropriate recycling mechanisms, and minimizing waste generation from construction and demolition (C&D) tasks [10,[13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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A Synthesis of Express Analytic Hierarchy Process (EAHP) and Partial Least Squares-Structural Equations Modeling (PLS-SEM) for Sustainable Construction and Demolition Waste Management Assessment: The Case of Malaysia

Ghafourian¹,

Kabirifar

Mahdiyar

et al. 2021

Recycling

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Construction and demolition waste (CDW), as the main consequence of construction and demolition (C&D) activities, has severely affected our sustainability needs. However, construction and demolition waste management (CDWM) lacks the integration of sustainability concepts. Thus, there is a great need to include sustainability dimensions in CDWM to reach sustainable construction and demolition waste management (SCDWM). This study aims at empirically investigating SCDWM by analyzing the impacts of factors that contribute to sustainability aspects of CDWM on waste management hierarchy (WMH), including reduce, reuse, recycle, and disposal strategies. According to the literature, 26 factors were initially identified and grouped under four categories, namely environmental, economic, social, and administrative, that contribute to sustainability aspects of CDWM. Subsequently, a pilot test was performed to assess the significance and applicability of these factors in the Malaysian construction industry by implementing the express analytic hierarchy process (EAHP). Then, a questionnaire survey was performed to collect data from 132 construction companies involved in CDWM. Partial least squares-structural equation modeling (PLS-SEM) was used to test the hypothetical relationships by applying SmartPLS software. Results demonstrated that the economic aspect of CDWM (main category) and “public environment contamination due to illegal waste dumping” (sub-category) were the most influential factor in SCDWM in Malaysia.

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Section: Synthesis Of Empirical Findingssupporting

confidence: 75%

Section: Social Aspect Of Cdwmmentioning

confidence: 99%

Section: Administrative Aspect Of Cdwmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Synthesis of Express Analytic Hierarchy Process (EAHP) and Partial Least Squares-Structural Equations Modeling (PLS-SEM) for Sustainable Construction and Demolition Waste Management Assessment: The Case of Malaysia

Ghafourian¹,

Kabirifar

Mahdiyar

et al. 2021

Recycling

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“…We sought an idea from a professional with at least 20 years of working experience in construction management and who has participated in many construction projects in which he experienced construction first-hand information. [37,38] Time pressure [39,40] Difficulties for delivery vehicles accessing construction sites [41,42] 2 Transportation problem [43,44] Lack of supervision [45] Inefficient method of unloading [46,47] 3 Incorrect Procurement [48,49] Lack of on-site waste management plans [50,51] Insufficient protections during unloading [50,52] 4 Lack of design standards for reducing construction waste [53,54] Use of incorrect material requiring replacement [54,55] Waste resulting from cutting uneconomical shapes [56,57] 5 Low cost for construction waste disposal [58,59] Poor craftsmanship [60,61] Damage to materials on-site [62] 6…”

Section: Waste Reduction Hierarchy On 3r (Reduce Reuse and Recycle)mentioning

confidence: 99%

Modeling of 3R (Reduce, Reuse and Recycle) for Sustainable Construction Waste Reduction: A Partial Least Squares Structural Equation Modeling (PLS-SEM)

et al. 2021

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There is a lack of awareness and knowledge among the Malaysian construction industry about waste management reduction. Numerous nations worldwide have understood and have incorporated the concept of the 3R (reduce, reuse, and recycle) in waste management, and it has worked out well. This study investigated construction waste issues and developed a model for sustainable reduction by applying 3R using a partial least squares structural equation modeling PLS-SEM in Malaysia. The research methodology adopted the quantitative and qualitative approaches by sending a survey questionnaire to the relevant stakeholders to obtain their views or perceptions and interviewing an expert in the related field about waste reduction in the Malaysian construction industry. Three hundred thirty questionnaires were collected within six months of submission. The significant factors are determined using mean ranking for the reduce, reuse and recycle elements. Based on the results, the exploratory power of the study model is considered sustainable with R2 values of 0.83%. At the same time, the results of relationships between improving factors, policy-related factors, construction waste generated, and sustainable construction waste reduction were significant. Also, the findings revealed that the top factors for waste generation on reducing, reusing, and recycling are lack of design and documentation, and lack of guidance for effective construction waste-collecting. The paper will explore different and dynamic practices, such as recycling, reuse of construction waste management cost reduction, enabling stakeholders and managers to estimate and quantify the actual size of CWM costs and benefits for sustainable development goals.

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Toward sustainable development: Developing a decision‐making framework for cross‐sectoral engagement in green procurement

Tuffour,

Chen,

Opoku‐Mensah

et al. 2023

Sustainable Development

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Green procurement plays a crucial role in mitigating emissions, promoting sustainable practices, and achieving the objectives of keeping global warming below the 2°C threshold. However, the implementation of green procurement faces significant challenges. Despite the recognized importance of sectoral collaboration, cross‐sectoral engagement (CSE) has not yet been widely acknowledged as an essential principle in green procurement implementation. This study aims to address these implementation challenges by developing a comprehensive decision‐making framework for CSE in public–private partnership projects, with a focus on advancing sustainable development goals. The research identifies and prioritizes barriers to CSE from multiple theoretical perspectives, employing an integrated approach that combines the Method Based on the Removal Effects of Criteria (MEREC) and the Combinative Distance‐Based Assessment (CODAS) method. The results reveal three primary factors hindering cross‐sectoral engagement: conflicting stakeholder interests and priorities, power imbalances, and communication gaps and language barriers. To promote effective collaboration, policymakers are urged to invest in capacity building initiatives that enhance stakeholders' understanding of green procurement principles and encourage their active participation in achieving sustainable development objectives. Theoretically, this study has, for the first time, developed a CSE framework that can be used to promote green practice implementation, integrate four theories to holistically access barriers to cross‐sectoral collaboration, and show the integration of the MEREC CODAS MCDM technique.

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Sustainable construction and demolition waste management in Somaliland: Regulatory barriers lead to technical and environmental barriers

Cited by 65 publications

References 32 publications

A Synthesis of Express Analytic Hierarchy Process (EAHP) and Partial Least Squares-Structural Equations Modeling (PLS-SEM) for Sustainable Construction and Demolition Waste Management Assessment: The Case of Malaysia

A Synthesis of Express Analytic Hierarchy Process (EAHP) and Partial Least Squares-Structural Equations Modeling (PLS-SEM) for Sustainable Construction and Demolition Waste Management Assessment: The Case of Malaysia

Modeling of 3R (Reduce, Reuse and Recycle) for Sustainable Construction Waste Reduction: A Partial Least Squares Structural Equation Modeling (PLS-SEM)

Toward sustainable development: Developing a decision‐making framework for cross‐sectoral engagement in green procurement

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