52 ITU‐T's Technical Reports and Specifications Finally, based on the above analysis, a proposed definition for a smart sustainable city was approved by ITU‐T Study Group 5 “Environment and Climate Change” and UNECE based on the work of the ITU‐T FG‐SSC reads as follows: \"A smart sustainable city is an innovative city that uses information and communication technologies (ICTs) and other means to improve quality of life, efficiency of urban operation and services, and competitiveness, while ensuring that it meets the needs of present and future generations with respect to economic, social, environmental as well as cultural aspects\".