The Internet of Things (IoT) contributes to smarter public infrastructures by enabling interconnected devices to communicate and share data. This connectivity allows for real-time monitoring of systems such as traffic lights, waste management, and energy grids, optimizing resource usage and efficiency. For example, IoT-enabled sensors can detect congestion in traffic and adjust signals accordingly, improving flow and reducing travel times. Furthermore, these technologies promote sustainability by monitoring environmental conditions and improving energy efficiency. The integration of IoT in public infrastructure enhances overall quality of life and fosters more responsive, adaptive city planning for future growth.