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Gauging HWRC performance from vehicle weigh-ticket data

Gauging HWRC performance from vehicle weigh-ticket data
Gauging HWRC performance from vehicle weigh-ticket data
This paper describes a modelling approach designed to investigate the variability in nett amenity bin weights produced by nine household waste recycling centres (HWRCs) in West Sussex, UK over a 12-month period. Compaction technique, vehicle type, site design and month were identified as key factors explaining 76% of the variability in the data. For each significant factor, a weighting coefficient was calculated to generate a predicted nett weight for every bin transaction. Analysis of predicted and observed mean bin weights suggested that three sites had similar characteristics but returned significantly different mean nett bin weights. Subsequent waste and site audits determined the possible sources of the remaining variability. Significant differences were identified in the proportions of bagged waste and dry recyclables deposited in the amenity waste stream at the sites, with significantly less observed at one site. Operational and managerial techniques (e.g. material separation, compaction frequency and site management ethos) were also identified as factors impacting on mean bin weights and general site performance. The model can be used to identify sites producing significantly different bin weights, enabling detailed ‘back-end’ waste analyses to be efficiently targeted and best practice in HWRC operation identified
1747-6526
37-43
Maynard, S.
a6cb202f-0090-4095-9c62-a5abe1469c26
Cherrett, T.
e5929951-e97c-4720-96a8-3e586f2d5f95
Waterson, B.
60a59616-54f7-4c31-920d-975583953286
Maynard, S.
a6cb202f-0090-4095-9c62-a5abe1469c26
Cherrett, T.
e5929951-e97c-4720-96a8-3e586f2d5f95
Waterson, B.
60a59616-54f7-4c31-920d-975583953286

Maynard, S., Cherrett, T. and Waterson, B. (2009) Gauging HWRC performance from vehicle weigh-ticket data. Proceedings of the Institution of Civil Engineers - Waste and Resource Management, 162 (1), 37-43. (doi:10.1680/warm.2009.162.1.37).

Record type: Article

Abstract

This paper describes a modelling approach designed to investigate the variability in nett amenity bin weights produced by nine household waste recycling centres (HWRCs) in West Sussex, UK over a 12-month period. Compaction technique, vehicle type, site design and month were identified as key factors explaining 76% of the variability in the data. For each significant factor, a weighting coefficient was calculated to generate a predicted nett weight for every bin transaction. Analysis of predicted and observed mean bin weights suggested that three sites had similar characteristics but returned significantly different mean nett bin weights. Subsequent waste and site audits determined the possible sources of the remaining variability. Significant differences were identified in the proportions of bagged waste and dry recyclables deposited in the amenity waste stream at the sites, with significantly less observed at one site. Operational and managerial techniques (e.g. material separation, compaction frequency and site management ethos) were also identified as factors impacting on mean bin weights and general site performance. The model can be used to identify sites producing significantly different bin weights, enabling detailed ‘back-end’ waste analyses to be efficiently targeted and best practice in HWRC operation identified

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More information

Published date: February 2009

Identifiers

Local EPrints ID: 74455
URI: http://eprints.soton.ac.uk/id/eprint/74455
ISSN: 1747-6526
PURE UUID: 5f8d88d0-4844-403e-a521-5cedcd29bd9e
ORCID for B. Waterson: ORCID iD orcid.org/0000-0001-9817-7119

Catalogue record

Date deposited: 12 Mar 2010
Last modified: 26 Nov 2019 01:56

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