How Nissan leveraged its driver assist to cut traffic jams

Instead, CCM works by having a lead car, or “probe,” send information to following CCM-equipped cars, which are separated by non-CCM cars between them. The information from the probe car lets the following cars keep an appropriate distance from each other—between 30 and 60 seconds—and if there’s a slow down ahead, the following cars will decelerate more gently…