A major driver of connected and automated driving is cooperative active safety. The effectiveness of cooperative safety applications depends on the ability of vehicles to detect traffic safety risks in advance. Such risks can be identified either through ADAS (Advanced Driving Assistance Systems) or via V2X (Vehicle to Everything) communications. More vehicles are gradually being deployed with ADAS, but ADAS sensors can be limited by their sensing range and field of view. On the other hand, V2X can experience communication ranges beyond the ADAS sensing range, but its impact is highly dependent on the V2X penetration rate. This paper analyzes the impact of ADAS and V2X penetration rates on the effectiveness of cooperative active safety applications considering an emergency braking maneuver use case in a highway scenario. Results show that while ADAS and V2X each enhance traffic safety, their combined deployment further amplifies these gains, with the effect becoming more pronounced as V2X is deployed more rapidly.

翻译：协同主动安全是网联自动驾驶的主要驱动力。协同安全应用的有效性取决于车辆预先识别交通安全风险的能力。此类风险可通过ADAS（高级驾驶辅助系统）或V2X（车联万物）通信技术进行识别。尽管配备ADAS的车辆数量逐步增加，但ADAS传感器的感知范围与视场角存在局限性。另一方面，V2X虽能实现超越ADAS感知范围的通信距离，但其效果高度依赖于V2X渗透率。本文针对高速公路场景下的紧急制动工况，分析了ADAS与V2X渗透率对协同主动安全应用效能的影响。结果表明：ADAS与V2X各自均可提升交通安全，而两者的协同部署将进一步放大增益效果，且随着V2X部署速度加快，这种增益效应愈发显著。