ITU‐T's Technical Reports and Specifications 803 Timeliness: This is defined as the ability to produce KPIs with respect to emerging issues in SSC construction. 6 Key performance indicators 6.1 Sub‐dimensions of KPIs The sub‐dimensions for each dimension are listed in Table 1. These have been tailored from the Table 1 of [ITU‐T L.KPIs‐overview]. In Table 1, each dimension is identified by the letter Dx. The sub‐dimensions are then classified by the label Dx.y where x denotes the dimension and y maps the sub‐dimension. Table 1 – Sub‐dimension of KPIs Dimension label Dimension Sub‐dimension label Sub‐dimension D2 Environmental sustainability D2.1 Air quality D2.2 CO2 emissions D2.3 Energy D2.5 Water, soil and noise D3 Productivity D3.1 Capital investment D3.2 Employment D3.3 Inflation D3.5 Savings D3.6 Export/import D3.7 Household income/consumption D3.8 Innovation D4 Quality of life D4.1 Education D4.2 Health D4.3 Safety/security public place D5 Equity and social inclusion D5.1 Inequity of income/consumption (Gini coefficient) D5.2 Social and gender inequity of access to services and infrastructure D5.3 Openness and public participation