Basically this is tech that lets cars communicate with each other. (This is in addition to self-driving cars the industry is working on.)
US road safety legislators have outlined a plan to demand all new cars and trucks be able to intercommunicate wirelessly, with the aim of reducing car accidents through a dynamically-evolving mesh network detailing location, direction, and speed. The Vehicle-2-Vehicle (V2V) scheme revealed by the NHTSA would not, at least initially, allow cars to react independently to potential dangers out of view of their human drivers, though future iterations of the system could well tap into brake-assistance, lane-guidance, and other technologies showing up in modern vehicles.
… Yeah, funny but not informative, lol. More detail here:
Just one more step until we’re driving automated cars like these: