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Smart cities aim to improve quality of life, boost sustainability and generate economic value through digital technologies. With an estimated seven billion people living in urban areas by 2050, it is crucial to deploy green, resilient resources and leverage technology to make urban environments more efficient, healthy and livable.
Connectivity
Connectivity is the foundation of any successful smart city. Devices must be able to communicate with one another, and operators need remote access to monitor and maintain systems. Human interaction with connected infrastructure unlocks operational and financial benefits such as automated alerts, remote diagnostics, and lower dispatch and maintenance costs. Analysts and developers should also be able to collect and analyze data in real time to create new services and insights.
Consider pollution monitoring as an example. Traditional reference monitoring stations are bulky and expensive, so only a limited number are deployed across a city, making street-level analysis difficult. With more cost-effective connectivity and advances in sensor miniaturization, networks of affordable environmental sensors could be installed on lampposts, traffic lights and building facades. This would provide a far more granular picture of pollution hot spots and enable targeted interventions.
Stronger connectivity also enables the distribution of real-time information and creates commercial opportunities by delivering targeted content and enabling innovative services. Today’s mobile apps give commuters up-to-the-minute train arrival times and permit ticket purchases; the same model can be extended to other urban services such as querying and reserving parking spaces, accessing local transit, or receiving neighborhood alerts.
Maximizing efficiency
Building a smart city can require significant investment, but costs can be reduced by using existing infrastructure and forming strategic partnerships between public and private organizations. Street furniture like lampposts, building facades, CCTV poles and other columns are already being repurposed to extend Wi-Fi, 3G and 4G coverage. Such placements are attractive to mobile and IoT operators as an economical way to enhance capacity and coverage in dense urban areas.
Smart cities should prioritize efficiency and create synergies wherever possible. By coordinating infrastructure projects and encouraging cross-marketing of assets, local authorities can cut costs, reduce disruption and improve returns on investment. For instance, when a street is dug up for pipe repairs, other stakeholders could lay fiber or conduits at the same time. Municipalities can establish agreements with contractors and developers to add public infrastructure during private works, enabling the city to build its asset base at lower cost. Many local authorities are already pursuing these collaborative approaches to work smarter and deliver better outcomes.
Accurate records
Accurate digital records are essential to support infrastructure sharing and partnerships. Legacy systems in both the public and private sectors often lack reliable information about asset locations, usage, spare capacity, condition and maintenance schedules. This absence of clear data can hinder commercialization, collaboration and efficient asset use.
Once connectivity is established, a smart city must implement systems that provide continuous feedback, data retrieval and the ability to act on insights—the familiar iterative cycle of test, learn and adapt. Technologies should be fully optimized with clear metrics on utilization, frequency, purpose and operating costs, including maintenance forecasts. The resulting data enables evidence-based planning and drives a three- to five-year roadmap for infrastructure investment and upgrades.
With well-structured information, city leaders can make properly informed and targeted investment decisions, ensuring new deployments align with actual needs and deliver measurable benefits to residents and businesses.
Future proof
A truly smart city must be future-proof. Thoughtful planning should identify where and at what scale infrastructure investment is required. Open standards are preferable to proprietary systems to avoid vendor lock-in and to facilitate interoperability between organizations and technologies. Backward compatibility should also be considered to reduce the need for wholesale replacements and to ensure diverse devices can communicate effectively.
As smart services become more widespread, people will expect consistent, seamless experiences across locations. A tourist or commuter will assume their mobile device or vehicle will work as it does at home. For example, autonomous vehicles must be able to receive and interpret sensor data regardless of where the car was manufactured—a U.S. vehicle should be able to communicate with UK infrastructure. That same level of interoperability is essential from the underlying systems of a smart city.
Delivering a connected and successful smart city depends on many interconnected factors. City planners should begin now to design integrated, well-considered infrastructure that will serve residents, workers and visitors alike in the near future, while remaining adaptable to evolving technologies and needs.
Interested in hearing industry leaders discuss topics like this and share IoT use cases? Attend upcoming IoT events and expos to learn more from experts and explore practical deployments.