A spatial analysis of hierarchical waste transport structures under growing demand

Abstract : The design of waste management systems rarely accounts for the spatio-temporal evolution of the demand. However, recent studies suggest that this evolution affects the planning of waste management activities like the choice and location of treatment facilities. As a result, the transport structure could also be affected by these changes. The objective of this paper is to study the influence of the spatio-temporal evolution of the demand on the strategic planning of a waste transport structure. More particularly this study aims at evaluating the effect of varying spatial parameters on the economic performance of hierarchical structures (with one transfer station). To this end, three consecutive generations of three different spatial distributions were tested for hierarchical and non-hierarchical transport structures based on costs minimization. Results showed that a hierarchical structure is economically viable for large and clustered spatial distributions. The distance parameter was decisive but the loading ratio of trucks and the formation of clusters of sources also impacted the attractiveness of the transfer station. Thus the territories’ morphology should influence strategies as regards to the installation of transfer stations. The use of spatial-explicit tools such as the transport model presented in this work that take into account the territory’s evolution are needed to help waste managers in the strategic planning of waste transport structures.
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Audrey Tanguy, Mathias Glaus, Valérie Laforest, Jonathan Villot, Robert Hausler. A spatial analysis of hierarchical waste transport structures under growing demand. Waste Management and Research, SAGE Publications, 2016, ⟨http://wmr.sagepub.com/⟩. ⟨10.1177/0734242X16658544⟩. ⟨emse-01350725⟩



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