788 ITU‐T's Technical Reports and Specifications Appendix I Additional indicators The indicators listed in the following table are proposed as additional indicators for consideration. Cities can select appropriate ones among those, and/or add new indicators, in order to evaluate the contributions of ICT to their SSC goals. Each additional indicator is labeled (Ax.y.z), where (i) x denotes the dimension, (ii) y the sub‐dimension and (iii) z the indicator. Sub‐dimension Indicator Description D1.1 Networks and access A1.1.1 Availability of mobile‐cellular telephones Mobile‐cellular telephone subscriptions per 100 inhabitants (*). A1.1.2 International Internet bandwidth International Internet bandwidth (bit/s) per Internet user (*) NOTE – This is the sum of used capacity of all Internet exchanges offering international bandwidth. If capacity is asymmetric, then the incoming capacity is used. International Internet bandwidth (Mbit/s) per Internet user is calculated by converting to bits per second and dividing by the total number of Internet users. A1.1.3 Use of Internet by city inhabitants Proportion of inhabitants using internet. A1.1.4 Coverage rate of digital broadcasting network Proportion of digital broadcasting network covering families in the city. A1.1.5 Availability of ultrahigh speed wireline connection Proportion of households with access to downstream speeds equal to, or greater than, 30 Mbits/s. A1.1.6 Availability of highspeed mobile broadband. Proportion of city area which provides access to downstream speeds equal to, or greater than, 10 Mbits/s. A1.1.7 Availability of WiFi in public areas Number of WiFi hotspots at certain points in the city center. A1.1.8 Availability of smart phones and tablets Number of smart phones and tablets per 100 inhabitants. A1.1.9 Quality of fixed broadband Mean‐download speed (fixed) A1.1.10 Quality of mobile broadband Cell‐edge performance (mobile) D1.2 Services and information platforms A1.2.1 Availability of electronic and mobile payment platforms Existence of electronic and mobile payment platforms to facilitate access to city services for city inhabitants.