The smart city market continues to grow at a steady pace, fueled by colossal investments and groundbreaking technological innovations. The integration of artificial intelligence (AI) and Big Data into urban infrastructures is transforming city management, enhancing citizens' quality of life while posing new challenges in security and regulation. Recent initiatives, notably in Hanoi and Finland, illustrate how AI and drones are being used to optimize traffic management and urban safety, highlighting the growing importance of these technologies in urban development.