This technology doesn’t merely provide faster cell service on the morning commute. Cellular-V2X (C-V2X) is a communications system for connected cars to share data with each other and with the surrounding infrastructure — no humans required. With 5G, cars can send and receive messages 10 times per second. The data can be analyzed quickly enough to provide as much as 3 seconds’ advance warning before an accident might happen, according to Savari.