Measures the degree of segregation of the dry waste in percentage, delivered from the individual circuit, based on random sampling and visual assessment of at least 10 bags per vehicle.
- Expected average – above 80%
Averages
Intervening Variables
- Bulk deliveries and special streams can to an extent influence segregation rates in both ways.
- Special Circumstances such as fairs and festivals, and a tourist influx may again influence the KPI in a negative manner.
- Absenteeism of sanitation workers, public holidays, vehicle breakdown, etc.
- Adverse Climatic Conditions.
Confounding Variables
- Absence of trained key personnel leading to observation errors.
- Special Activities such as clearing of backlogs.
Monthly Trend Since 2023
Recent 6-Month Trend
Recent 31-Day Trend
OBSERVATIONS
Yearly Trends
- Although segregation rates are very low durning the the later part of 2023 and show some indication of observer bias – the findings are largely supported by the percentile of compostables recovered as recorded in the section entitled as KPI-9
- Gradual improvement in segregation rates observed from Jun 2024, and stabilisation at 84% since Sep 2024 onwards – observation again supported by findings under KPI-9
Six Month Trend
- Segregation rate consistent throughout except for a few observer errors on rare occasions
- Stray significant dip on 18 April attributed to local fair and festival and to be ignored
31-Day Trend
- Rate consistent over the period
- Assessment not made on Sundays as re-sorting is not carried out cf. KPI-6
Efforts to improve segregation by yet another 10% to be aimed at to facilitate better recyclables recovery – chiefly paper and related. Alternate strategy to be worked out for assessment on Sundays
31-Day Timeline of KPIs & their Variables
