Page 78 - U4SSC Collection Methodology for Key Performance Indicators for Smart Sustainable Cities
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Collection Methodology for Key Performance Indicators for Smart Sustainable Cities



             Dimension           Environment
             Sub-Dimension       Environment
             Category            Water and Sanitation
             KPI Name            Water Consumption
             KPI No.             EN: EN: WS: 2C   Type:          Core           Type:          Sustainable

             Definition /        Water consumption per capita
             Description

             Rationale /         Consumption of water per person depends on:
             Interpretation /    ▪  the availability and price of water;
             Benchmarking        ▪  the climate; and
                                 ▪  the uses of water (drinking, bathing, washing, and gardening).
                                 In many cities, potable water supply is not constant and households rely on a few
                                 hours to tap the available water during the day. Water consumption is much higher
                                 in cities of higher income countries.
                                 Typically, people in cities of developed countries use 272 litres per day while the
                                 average in Africa is 53 litres per day. North American cities use, on average, double
                                 the amount of water per person than Western European cities, and seven times
                                 that of African cities.
                                 Water consumption should include all water used within the city.
                                 Water consumption per capita should be in line with the sustainable water
                                 resources available.
                                 A declining trend and lower values are considered positive.
             Source (s)          Urban Indicators Toolkit. Retrieved from
                                 <http://www.conei.sp.gov.br/ind/urbanindicators_urbanobservatory.pdf>

             Methodology         Calculate as:
                                 Numerator: Total amount of water consumption in cities (ℓ /day).
                                 Denominator: Total number of city inhabitants.

             Unit                ℓ / day / capita.
             Data Sources /      Data can be obtained from water supply utilities.
             Relevant            United Nations (2002): GLOBAL URBAN INDICATORS DATABASE
             Databases           http://unhabitat.org/books/global-urban-indicators-database/global-urban-
                                 indicators-database/

             SDG Reference(s)    SDG Indicator 6.4.1: Change in water-use efficiency over time.

























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