WASAN : the development of a facilitated methodology for structuring a waste minimisation problem

Duncan Shaw*, Neil Blundell

*Corresponding author for this work

Research output: Contribution to journalArticle


This paper contributes a new methodology called Waste And Source-matter ANalyses (WASAN) which supports a group in building agreeable actions for safely minimising avoidable waste. WASAN integrates influences from the Operational Research (OR) methodologies/philosophies of Problem Structuring Methods, Systems Thinking, simulation modelling and sensitivity analysis as well as industry approaches of Waste Management Hierarchy, Hazard Operability (HAZOP) Studies and As Low As Reasonably Practicable (ALARP). The paper shows how these influences are compiled into facilitative structures that support managers in developing recommendations on how to reduce avoidable waste production. WASAN is being designed as Health and Safety Executive Guidance on what constitutes good decision making practice for the companies that manage nuclear sites. In this paper we report and reflect on its use in two soft OR/problem structuring workshops conducted on radioactive waste in the nuclear industry. Crown

Original languageEnglish
Pages (from-to)350-362
Number of pages13
JournalEuropean Journal of Operational Research
Issue number1
Publication statusPublished - 16 Nov 2010



  • group decisions/negotiations
  • OR in energy
  • problem structuring methods
  • waste management

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