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Smart Cities

Connected infrastructure systems optimizing urban living and services

Fig. 425 · Traffic signal

The field

At a glance

Definition

Connected infrastructure systems optimizing urban living and services

Technologies

IoT sensor networks monitor air quality, traffic, water, and noise. AI traffic management optimizes signal timing in real time. Digital twins model entire city systems for planning. Computer vision enables automated traffic enforcement and public safety monitoring. Smart grid technology balances distributed energy resources across urban networks.

Applications

Adaptive traffic signals reduce congestion by 15-25%. Smart water systems detect leaks and optimize distribution. Environmental sensor networks monitor air quality in real time. Predictive policing analytics optimize patrol routes (though facing privacy scrutiny). Digital permitting platforms reduce building permit processing times from weeks to days.

Market and funding

Global smart city technology spending exceeded $200 billion in 2025, with 28 funders active in Superscout's database. The sector spans intelligent transportation, environmental monitoring, connected utilities, public safety analytics, and citizen services platforms.

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