Connected vehicles is an academic concept and interdisciplinary research field dedicated to the study, development, and implementation of vehicles equipped with wireless communication capabilities. This area investigates the technologies, protocols, data exchange mechanisms, and applications that enable vehicles to interact wirelessly with each other (V2V), roadside infrastructure (V2I), pedestrians and devices (V2P), and broader networks (V2N). Characterized by pervasive connectivity and real-time data flow, its significance stems from its potential to transform transportation systems by improving safety, optimizing traffic management, supporting advanced driver-assistance systems and autonomous driving, and fostering the creation of innovative mobility services.