What is V2X Communication?

V2X communication, which stands for vehicle-to-everything communication, refers to the wireless exchange of information between vehicles, transportation infrastructure, and pedestrians. It allows vehicles to "talk" to each other and to surrounding infrastructure to improve road safety, traffic efficiency, and mobility.

Types of V2X Communication

There are several types of V2X communication:

Vehicle-to-Vehicle (V2V) Communication

V2V communication enables vehicles to exchange information with other nearby vehicles. This allows vehicles to "see" around corners and beyond line-of-sight to receive advance warning of potential collisions. For example, one vehicle can alert other vehicles that it is braking hard on the highway even before they can see it themselves. V2V communication plays a key role in advanced driver assistance systems and autonomous driving technologies.

Vehicle-to-Infrastructure (V2I) Communication

V2X Communication  enables two-way exchanges of information between a vehicle and transportation infrastructure such as traffic lights, road signs, and dynamic message signs. For example, a traffic light can use V2I to communicate how much time remains in the current signal phase to approaching vehicles so drivers can adjust their speed accordingly. V2I also supports applications such as electronic toll collection and pay-as-you-drive insurance.

Vehicle-to-Pedestrian (V2P) Communication

V2P facilitates direct wireless communication between vehicles and pedestrians' personal communication devices. This allows vehicles to detect and warn pedestrians of impending collisions even if the pedestrians cannot be seen directly by the vehicle's onboard sensors. V2P improves safety for vulnerable road users.

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