Modelling the cause-and-effect relationships risks in reverse logistics supply chains for demolition waste
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(Published version)
Date
2023
Authors
Jayasinghe, R.
Rameezdeen, R.
Chileshe, N.
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Journal article
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Engineering, Construction and Architectural Management, 2023; 30(9):4018-444044
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Abstract
Purpose: Reverse Logistics Supply Chain (RLSC) for demolition waste management is a complex process that inherits significant interdependent risks. However, studies on RLSC have not explicitly identified the risks of its inter-relationships by disentangling their effects on operational performance. Accordingly, this paper aims to identify and assess the interdependencies of the risks in RLSC, to improve quality-related operational performance
Design/methodology approach: A sequential exploratory mixed-method research approach, consisting of qualitative and quantitative methods was employed. The qualitative approach involved 25 semi-structured interviews, whereas the 18 subsequent structured interviews were conducted with stakeholders in the entire RLSC as part of the quantitative method. These used to identify the cause-and-effect relationships of the identified risks. The data was analysed using thematic analysis and the Bayesian Belief Network (BBN) technique was used to develop a conceptual risk model
Findings: 20 risks in four RLSC sub-processes, namely, dismantling, and on-site process, off-site resource recovery process, marketing of secondary products and residue disposal emerged. Among cause-and-effect relationships of identified risk factors, inferior quality of secondary products were found to have the strongest relationship with customer satisfaction. Under-pricing of dismantling job, improper landfill operations, and inadequacy of landfill levy are independent risks that initiate other risks down the supply chain. The aggregate effects of these risks affect customer dissatisfaction of the end-product, as well as health and safety risks in onsite, off-site and residue disposal.
Practical implications: The results encourage the investigation of RLSC process quality by maintaining the relationship between recycler and customer to enable a safe workplace environment. Hence, the role of relevant practitioners and government are inseparable in supporting decision-making. Future research could discuss the impact of those interrelated risks in relation to time- or cost-related operational performance criteria
Limitations: This study only identifies the cause-and-effect relationships of the identified risks within RLSC for demolition waste management. operations for DWM. It has not been targeted a specific construction material or any secondary production, which could be practised through a case study in future research
Originality/value: This study contributes to the field through presenting the first major study on the identification and assessment of the interdependencies of the risks in RLSC in South Australia. The RLSC process mapping had been identified as a tactical and operational management approach. However, the risk management process is a strategic management approach. Therefore, the integration of both process mapping and the risk management approaches in one platform is germane to construction management research
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