Vehicle-to-Infrastructure Communication (V2I) refers to the technology that allows vehicles to communicate with road infrastructure, such as traffic lights, road signs, and sensors. This communication helps improve traffic flow, enhance safety, and reduce congestion by providing real-time information to drivers and vehicles. For example, a vehicle can receive alerts about upcoming traffic signals or road conditions, enabling better decision-making. V2I is a key component of the broader Vehicle-to-Everything (V2X) ecosystem, which includes communication between vehicles, other vehicles, and even pedestrians. By integrating V2I technology, cities can create smarter transportation systems that promote efficiency and sustainability, ultimately leading to safer roads for everyone.