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indicators for smart sustainable cities to assess the achievement of sustainable development goals.
This set of KPIs for smart, sustainable cities (SSC) was developed to establish the criteria to evaluate
ICTs’ contributions in making cities smarter and more sustainable, and to provide cities with the
means for self-assessments.

Following this, the U4SSC initiative published the U4SSC KPIs for SSC – based on Recommendation
ITU-T Y.4903 – to support cities worldwide in evaluating the role and contribution of ICTs in smart
sustainable cities, and to provide cities with the tools for self-assessments to achieve the SDGs.

These indicators have been developed to provide cities with a consistent and standardized method
to collect the necessary data to measure performance and progress regarding:

• achieving the SDGs;

• becoming a smarter city; and

• becoming a more sustainable city.

The U4SSC KPIs have been implemented in more than 150 cities around the world. The U4SSC
verification and benchmarking visualization programmes are supporting these cities in evaluating
their existing smart sustainable city vision, mission, strategy and implementation projects.

The U4SSC KPIs for Smart Sustainable Cities have been classified into three key dimensions:

1. Economy
2. Environment

3. Society and Culture

Each of the aforementioned dimensions is further divided into seven sub-dimensions, namely:

1. Information and Communication Technologies (ICTs)

2. Productivity
3. Infrastructure

4. Environment

5. Energy
6. Education, Health and Culture

7. Safety, Housing and Social Inclusion

ITU’s case studies, developed based on the implementation of the U4SCC KPIs, allows for the
showcasing of a diverse range of approaches to creating a smart sustainable city, along with
relevant governance mechanisms, investment protocols and coordination processes.

6 U4SSC Case study | Daegu, Korea (Republic of) | February 2022