That vision took a step closer to reality in a groundbreaking Cooperative Congestion Management (CCM) trial. The findings suggest that even with a limited number of vehicles, CCM could make commuting not only smoother but also safer. “Our goal is to eliminate the waste of stop-and-go traffic.”The CCM system seeks to counter this natural tendency. At the heart of the system is Nissan’s ProPILOT Assist technology, available on many U.S. Nissan models. For the CCM trial, engineers layered new communication software on top of ProPILOT to allow the vehicles to coordinate speeds in response to real-world congestion.