Identifying the Leverage Points in the Household Solid Waste Management System for Harare, Zimbabwe, Using Network Analysis Techniques

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http://eprints.org/relation/isVersionOf https://pure.iiasa.ac.at/id/document/99103 http://eprints.org/relation/isVolatileVersionOf https://pure.iiasa.ac.at/id/document/99103 http://eprints.org/relation/issmallThumbnailVersionOf https://pure.iiasa.ac.at/id/document/99103 archive 353 disk0/00/01/82/61 2022-10-05 08:20:39 2022-10-05 08:20:39 2022-10-05 08:20:39 article show Kwenda P.R. Lagerwall G. Eker S. 2173 0000-0003-2264-132X van Ruijven B. 92197 0000-0003-1232-5892 Identifying the Leverage Points in the Household Solid Waste Management System for Harare, Zimbabwe, Using Network Analysis Techniques pub ECE S3 household solid waste management; network analysis; leverage points; PAJEK; VOSviewer; R; Harare; Zimbabwe Managing household solid waste (HSW) has gone beyond what the Harare local government can handle. Inadequate knowledge of the interactions existing between issues that affect the efficient running of waste management systems is one of the major hindrances in waste management planning in developing countries like Zimbabwe. The complexity of the waste management system for a given municipal area needs to be identified and understood to generate appropriate and efficient waste management strategies. Network analysis (NA) is a methodology extensively used in research to help reveal a comprehensive picture of the relationships and factors related to a particular phenomenon. The methodology reduces the intricacy of large systems such as waste management to smaller and more understandable structures. In this study, NA, which was done mainly using the R software environment, showed a result of 1.5% for network density, thus signifying that for Harare, waste management strategies need to be ‘seeded’ in various parts of the system. The Pareto principle and the 3Rs (Reduce, Reuse, Recycle) concept were applied to suggest the issues to prioritize and generate strategies that could potentially affect significant change to the city’s waste management system. The key issues identified, in their order of importance, are an increase in uncollected waste, low waste collection efficiency, increase in illegal waste dumping, the deteriorating country’s economy, reduced municipal financial capacity, reduced municipal workforce capacity, inadequate or unreliable waste data, increase in waste volume, increase in the number of street vendors, no waste planning and monitoring unit, no engineered landfills in the city, increase in waste collection pressure, low waste collection frequency, increase in the unemployment rate, reduced municipal technical capacity, few waste collection vehicles, limited vehicles maintenance, distinct socio-economic classes, high vehicles breakdown, and increase in population. 2022-09 published Molecular Diversity Preservation International (MDPI) doi:10.3390/su141912405 2953 3102 public Sustainability 14 19 e12405 TRUE 2071-1050 no info:eu-repo/semantics/article