Group 1 - The 15th China International Road Traffic Safety Products Expo was held from April 23 to 25 in Wuhan, focusing on "New Technology, New Transportation, New Business Models, New Development" [1] - Rongheng Group showcased its self-developed traffic signal control system ATS-Smooth and other AI-based traffic management products, addressing various signal control application needs for the "Traffic Power" initiative [1] - The expo featured advanced technologies such as AI, autonomous driving, big data, and intelligent networking to support the construction of a "Traffic Power" [1] Group 2 - The ATS-Smooth system is a fully domestically developed traffic signal control system, utilizing a completely domestic operating system and middleware, achieving full "Hongmeng" software integration [2] - The system employs advanced technologies and algorithms to autonomously control traffic signals based on real-time traffic flow information [2] - Experts from the traffic management field, including former deputy director of the Ministry of Public Security's Traffic Management Science Research Institute, praised the ATS-Smooth system for its innovation and effectiveness [2]