Benchmarking operational efficiency in waste collection: Discussion of current approaches and possible alternatives
authors Sousa, V; Dias-Ferreira, C; Fernandez-Brana, A; Moireles, I
nationality International
journal WASTE MANAGEMENT & RESEARCH
author keywords Performance assessment; performance indicators; ranking; unbiased; absolute evaluation; waste collection
keywords MUNICIPAL SOLID-WASTE; SORTED HOUSEHOLD WASTE; PERFORMANCE INDICATORS; COST EFFICIENCY; MANAGEMENT-SYSTEMS; SERVICES; DRIVERS
abstract Efficiency assessment and benchmarking are crucial for managing any organization. However, especially from a regulatory perspective, such efficiency assessment and benchmarking must be unbiased from context-specific issues and should provide an absolute rating, rather than a relative one. The current work reviews the approaches used for performance assessment and benchmarking waste collection services, revealing that the majority are biased and are not absolute, and proposes two alternative context-unbiased and absolute performance indicators, the collection capacity use (CCU) and the segregated waste collection efficiency (SWE). The proposed indicators were calculated for 246 utilities operating in Portugal. The utilities were then ranked accordingly, and their position was compared with the position attained using the equivalent performance indicators in the system currently in use by the Portuguese service regulator. The results reveal ranking differences of over 50 positions and illustrate how misleading the results from context-biased and relative metrics can be.
publisher SAGE PUBLICATIONS LTD
issn 0734-242X
isbn 1096-3669
year published 2019
volume 37
issue 8
beginning page 803
ending page 814
digital object identifier (doi) 10.1177/0734242X19854119
web of science category Engineering, Environmental; Environmental Sciences
subject category Engineering; Environmental Sciences & Ecology
unique article identifier WOS:000478590300005
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journal analysis (jcr 2019):
journal impact factor 2.771
5 year journal impact factor 2.867
category normalized journal impact factor percentile 54.906
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