So far though these systems are relying on the sensors built into the vehicle to determine what to do which means they can respond to outside influences that they can "see." To really get the most out of these systems, it would help if they were more aware of what is happening beyond the "line-of-sight."

That's were V2X or vehicle to vehicle and vehicle to infrastructure communications come into play.  When a vehicle can get signals about is happening several cars down the road, it can alert the driver and respond even sooner potentially avoiding accidents and reducing the backups that are so irritating. Reducing random backups can improve traffic flow and reduce fuel consumption.