With the development of civil aviation industry, the total amount of flights has been increasing year by year, eastern areas in particular. As the approaching of thunderstorm season, CAAC and CAAC/ATMB take some measures to improve the flight punctuality rate, for example, formulated "civil aviation ATM systems security implementation program during the thunderstorm season" and "real-time traffic-engineering coordination mechanism system" etc. Real-time traffic management mechanism is a supplement and improvement for coordination decision-making mechanism, which takes the telephone as the communication means. It will play an active role for building up "harmonious civil aviation, harmonious ATM", greatly relieving the flight delays and strengthening the coordination among each department. This mechanism will be implemented from June 1. The member agencies including operation management center of CAAC/ATMB, operation management center of each regional ATMB, area control centers and terminal control centers in Beijing, Shanghai and Guangzhou, as well as the area control offices in the areas with heavy traffic and the operation and control departments of the main airlines.