Construction and demolition waste (CDW) substantially contributes to environmental degradation because of its intrinsic characteristics of fast and high generation volume, low recycling rate, and low revenue margins. A systemic problem is that recycling facilities are not usually a part of a reverse supply chain (RSC) specific for CDW. This makes the recovery process costs prohibitive, especially where companies are unable to receive and process large volumes of waste continuously. This paper presents a systematic analysis of the extant literature and utilizes the results accrued to develop a conceptual RSC model for CDW. In so doing, the research seeks to provide clarity on this phenomenon, while simultaneously stimulating wider academic discourse and further research endeavours. A mixed philosophies epistemological design was adopted using both interpretavism and constructivism to undertake a qualitative systematic analysis of the literature. A process diagram was produced to represent the conceptual model (CM) and thematically group the nodes into three key swim lanes that delineate the boundaries between distribution, manufacturing, and sourcing and warehousing processes. Within each swim lane, stakeholders were incorporated as key actors. A further layer of nuanced complexity was added to illustrate the key actors involved in the process, government strategies, and activity flow paths. This novel CM offers both practical and theoretical contributions to existing knowledge and signposts a future research direction. Such work will demystify reverse logistics for managing CDW, and assist government policy-makers to develop informed policies that reduce the negative environmental impact of construction activities.
Goal: The need to discuss reverse logistics processes with a detailed and analytical approach, aiming at improving the reverse channel efficiency is notorious in the literature. Therefore, this research aimed to analyze and describe in detail the activities that make up the reverse logistics processes and, in addition, to propose a conceptual framework for a better understanding and definition of RL processes. . Design / Methodology / Approach: This was achieved through a systematic review, which considered 3.517 papers, analyzing the RL concepts, definitions and objectives, as well as identifying its processes and activities. The activities were categorized as information (I-RL process) or materials (M-RL process) related. Results: This research provides an entire RL activities blueprint. This approach promotes greater transparency, allowing to identify stages most impacted on the reverse channels, besides standardizing logistical procedures and also allowing to insert control points for measuring performance. Limitations of the investigation: It is possible for a paper that focuses on one of the activities of the framework not to have been shown during the database if it doesn’t mention the keywords “reverse logistics”, “green logistics” and “sustainable logistics”. Practical implications: The concepts of reverse logistics activities presented in the framework can be implemented in reverse supply chains, serving as a basis for organizational strategies for managers involved with such processes. Originality / Value: The authors of this paper believe that the results achieved can greatly contribute to the expansion of debates in the RL area, as well as serve as a basis for managers involved with RL processes.
This paper presents an organizational analysis methodology aimed at knowledge capitalization with a view to improving business processes. Based on a real problem in a large electric sector firm, this methodology is applied to managing the transport of indivisible exceptional cargo (IEC). In the firm in question, intellectual capital is a critical asset for service performance and is fundamental for achieving business excellence. Applied to the firm's transport management process, the approach proved appropriate to IEC transport-related organizational goals. A review highlights definitions and structures for improving business processes proposed previously in the literature. The results of applying the methodology are discussed at the end of the paper.Keywords: knowledge management; business process management; indivisible exceptional cargoes; electric sector. ResumoEste artigo apresenta uma metodologia de análise organizacional que busca a capitalização do conhecimento, focada na melhoria dos processos de negócio. Baseado em um problema real de uma empresa do setor elétrico, essa metodologia é aplicada para o transporte de cargas excepcionais indivisíveis (CEI). Nessa empresa, o capital intelectual é um ativo crítico para o desempenho dos serviços e ele é fundamental para a excelência do negócio. A abordagem aplicada ao processo de gerenciamento do transporte de uma grande empresa brasileira de suprimento de energia elétrica mostrou-se adequada às metas organizacionais do transporte de CEI. Uma revisão destaca definições e estruturas para a melhoria dos processos de negócio previamente propostas na literatura. Os resultados da aplicação da metodologia são apresentados ao final do artigo.Palavras-chave: gestão do conhecimento; gerência dos processos de negócio; cargas excepcionais indivisíveis; setor elétrico.
PurposeReverse logistics (RL) is a waste revaluation process aimed at reintroducing once-used materials back into the production cycle. Public administration (PA) plays a strong role in influencing the implementation of RL in the construction industry through policy and laws. While much research identifies PA as an important driver in RL, no research yet describes how this occurs.Design/methodology/approachA systematic literature review was conducted on the theme PA in RL with 93 relevant publications retrieved.FindingsSix strategies used by PA to promote RL were extracted: (1) legislation, (2) government subsidies, (3) landfill disposal fee, (4) government inspection, (5) use in public construction works and (6) penalties and fines. Moreover, a typology built on these six strategies was developed, mapping 15 interactional relationships between strategies, according to three levels of influence: (1) encouragement (2) requirement and (3) regulation.Practical implicationsIt was found that legislation and government subsidies prove to be the more effective strategies, with the remaining strategies greatly neglected. Importantly, however, this study reveals that a combination of strategies are most effective when appropriately combined.Originality/valueThis study confirms the importance of PA in RL, in construction, while documenting the extent of current research. The resulting proposed typology, along with 15 identified future research priorities, is expected to be of value to academics and policy makers looking to advance understanding in this domain.
Among all existing inventory replenishment models, this research was dedicated to the Joint Replenishment Problem (JRP), which consists in the replenishment of multiple items simultaneously, aiming total cost reduction. Literature has presented several optimal and approximated solutions to this problem, with different applications and techniques, which results in a large quantity of solution proposals. Therefore, this research aimed to map existing solutions to the problem in 2006-2015 in order to provide a guide for interested parts in JRP and to update previous reviews. Hence, systematic review was used to assess papers from that period interval. From a total of 128 papers, a general trend for seeking JRP extensions and practical applications was verified. Furthermore, the heuristic and metaheuristic methods were the most used and considered the most suitable due to their simplicity in understanding and application. KeywordsInventory management. Multi-product. Joint replenishment problem. Systematic review.
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