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Dimension            Dimension              Sub‐dimension              Sub‐dimension
                 label                                         label

                 D6       Physical infrastructure              D6.1        Infrastructure/connection to
                                                                           services – piped water
                                                               D6.2        Infrastructure/connection to
                                                                           services – sewage
                                                               D6.3        Infrastructure/connection to
                                                                           services – electricity
                                                               D6.6        Infrastructure/connection to
                                                                           services – health infrastructure
                                                               D6.7        Infrastructure/connection to
                                                                           services – transport
             NOTE ‐ This list contains only the sub‐categories for which indicators are defined in this document. For a
             total set of sub‐categories, refer to [ITU‐T L.KPIs‐overview].

            6.2   Key performance indicators for smart sustainable cities

            This section defines the core indicators applicable for all cities.

            Each indicator is labeled (Ix.y.z), where (i) x denotes the dimension, (ii) y, the sub‐dimension, and
            (iii) z, the indicator.
            NOTE – The numbering of indicator Ix,y,z of this document follows that of [ITU‐T L.KPIs‐ICT].
            The indicators listed in Appendix I are proposed as additional indicators for consideration. Cities can
            select  appropriate  ones  among  those,  and/or  add  new  indicators,  in  order  to  evaluate  the
            sustainability impacts related to the use of ICT.
                                                                                                     2
            NOTE – These Technical Specifications contain ICT specific indicators and general indicators  which
            describe the sustainability impacts in the context of smart sustainable cities. Due to the complexity
            of cites and the wide range of factors that impact citizens´ behaviour, impacts from ICT could in
            many cases mainly be tracked for specific projects or initiatives. For this reason, the general city
            level KPIs are defined for areas where ICT could have an impact, though it is not the only change
            lever. Thus, to understand the ICT impact on the general KPIs, depth analysis is needed based on a
            broad understanding of the general city development.

            NOTE – Although convenience and comfort is an important aspect of SSC, there are no KPIs defined
            for  the  sub‐dimension  D4.4  Convenience  and  comfort  [ITU‐T  L.KPIs‐overview].  However,  it  is
            important  that  ICT  projects  are  designed  in  a  way  that  is  convenient  for  the  intended  users.
            Therefore it is good to combine the use of KPIs with other assessment methods to understand the
            satisfaction level linked to the use of such projects and how these KPIs develop over time.
            NOTE – In this text the e‐service concept (e.g., e‐health and e‐governance etc.) is used in an inclusive
            way and refers to both wired and wireless services that benefit cities and city inhabitants. The
            mobile wireless services could also be referred to as m‐services (e.g., m‐health, m‐banking etc.).
            These ICT services and goods can be also collectively termed as Smart services (e.g., Smart grid,
            Smart lighting) and Smart goods (e.g., Smart meters). In some cases the Smart service / smart goods
            concept may be used instead of e‐service if this terminology is more widely adopted for the referred
            service or goods.
            NOTE – In this document the term city inhabitant is used to refer to the people living in the city.


            2    The general indicators are marked (*).


            804                                                      ITU‐T's Technical Reports and Specifications
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