What question did this study set out to answer?

The aim is to create an integrated index that combines smart city and sustainability metrics for urban performance assessment.

March 25, 2026SystemsOpen Access

Developing a Composite Sustainable Smart City Performance Assessment Index: A Novel Indexing Model and Cross-Country Application

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Develops a new composite index to assess sustainable smart cities, indicating the need for balanced urban development across multiple dimensions.

The aim is to create an integrated index that combines smart city and sustainability metrics for urban performance assessment.
Developed a Sustainable Smart City index via a systematic scoring framework
Employed redundancy-penalized entropy weighting to manage indicator overlap
Utilized soft non-compensatory aggregation for overall performance scoring
Illustrated framework through a cross-country case study of 38 OECD countries
Applied machine-learning-based forecasting to fill data gaps
Identified significant differences in SSC performance across countries
Demonstrated that strong performance in one dimension doesn't guarantee high overall SSC scores
Highlighted the importance of balanced progress in various urban dimensions like economic, digital, and social

Unal et al. (2026) studied this question.

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Develops a new composite index to assess sustainable smart cities, indicating the need for balanced urban development across multiple dimensions.