How Vehicle-to-Vehicle Communication Could Eliminate Phantom Traffic Jams

Connected and Automated Vehicles (CAVs) use Vehicle-to-Vehicle (V2V) communication to share real-time sensor data, allowing cars to coordinate speed and behavior with each other and a central server. One key application is reducing phantom traffic jams, where a single braking event cascades into widespread gridlock, by having vehicles share acceleration and deceleration data up to ten times per second. The technology also enables intersection management without traffic lights, pre-cleared corridors for emergency vehicles, and automatic crash response to prevent secondary collisions. Additional benefits include improved fuel efficiency for heavy trucks, real-time pothole detection and alerts, and the ability for drivers to see hazards beyond large vehicles using shared camera feeds. Researchers at the University of Michigan have already demonstrated CAV convoy behavior, suggesting these capabilities are moving closer to real-world deployment.