ITU‐T's Technical Reports and Specifications 841 Table 1 – Comparison of KPIs between index systems and sets of KPIs Dimension Sub‐ Dimension Indicators ISO IDI UN‐Habitat CIC MOHURD ECI Italy TTC GCIF GPC ESCI ERMC EUSI Wheel Ericsson IBM IDC PwC Siemens D6 Physical infrastructure D6.1 Building I6.1.1 Application level of energy saving technologies in public buildings X X X X I6.1.2 Percentage of public buildings with integrated technologies X X X X I6.1.3 Proportion of smart home automation adoption X X X D6.2 Transport I6.2.1 Coverage of installation of road sensing terminals X X X I6.2.2 Coverage of parking guidance systems X I6.2.3 Coverage of electronic bus bulletin board X D6.3 Sanitation I6.3.1 Sewage discharge management with ICT measures X X X X X X X