北京发布：轨道交通列车最高运行速度提升至每小时120公里

Group 1 - The core point of the article is the announcement of the revised urban rail transit engineering design standards in Beijing, which will come into effect on January 1, 2026, allowing for a maximum train speed increase from 100 kilometers per hour to 120 kilometers per hour [1] Group 2 - The revised standards are issued by the Beijing Municipal Planning and Natural Resources Commission [1] - The implementation of the new standards is expected to enhance the efficiency and speed of urban rail transit in Beijing [1] - The change in maximum train speed reflects a broader trend towards modernization and improvement of urban transportation infrastructure [1]