808 ITU‐T's Technical Reports and Specifications Sub‐dimension Indicator Description D5.1 Inequity of income/consumption (Gini coefficient) I5.1.1 Income distribution Income distribution in accordance with Gini coefficient. (*) D5.2 Social and gender inequity of access to services and infrastructure I5.2.1 Gender income disparity Rate of income disparity between men and women. (*) NOTE – Income has potential influence on equity of access to services and infrastructure. D5.3 Openness and public participation I5.3.5 Use of online city services Proportion of city inhabitants using online public services and facilities (e.g., choice of schools, booking of public sports facilities, library services, etc.). NOTE – This includes bookings, payments etc. I5.3.6 Perception on social inclusion Proportion of city inhabitants satisfied with the social inclusion. (*) NOTE – Social inclusion usually refers to members of society feeling valued and important. NOTE – Indicators marked by (*) are not ICT specific indicators but indicators focusing on general city sustainability. 6.2.5 Physical infrastructure4 This clause lists the core indicators defined for the physical infrastructure. There are 6 indicators in this dimension, covering piped water, sewage, electricity, health infrastructure, transport and road traffic. Sub‐dimension Indicator Description D6.1 Infrastructure /connection to services – piped water I6.1.4 Leakage in water supply system Proportion of water leakage in the water supply system. (*) D6.2 Infrastructure /connection to services – sewage I6.2.3 Sewage system coverage Proportion of households connected to the sewage system. (*) D6.3 Infrastructure /connection to services – electricity I6.3.2 Reliability of electricity supply system Proportion of time during which electricity supply system works without outages. (*) 4 The number of various sensors (per capita) deployed in the city and accessibility to the public administration is very important.