“…There are several KPIs to assess the level of an area or to quantify something that is not really there (directly recognizable and identifiable either from the citizens or the stakeholders). Such KPIs related to evaluation and or validation of the existing waste management strategy, as well as the level of sustainability, may include TAEs, TI, TD, life cycle analysis, waste compositional analysis (C-MSW), clean coast index (CCI), accumulation rate (AR), waste accumulation index (WAI), waste generation index or rate (WGR), driving force–pressure–state–impact–response (DPSIR), waste recycling index (R-MSW), waste recovery index or rate (WRR), existing waste infrastructure per citizen (WI), prevention activities and or awareness activities as well as other qualitative approaches such as political, economic, socio-cultural and technological and strengths, weaknesses, opportunities and threats (SWOT) analyses (Abylkhani et al, 2020; Fernandez-Aracil et al, 2018; Inglezakis and Zorpas, 2014; Lasaridi et al, 2015; Loizia et al, 2018, 2021; Mori and Christodoudou, 2012; Priyadarshini and Abhilash, 2020; Tofalli et al, 2018; Tsangas et al, 2020, Urban Wins, 2019; Vardopoulos et al, 2020; Wang et al, 2018a, 2018b; Zorpas, 2020).…”