北京今日9号线、首都机场线在客流高峰时段陆续加开列车

Group 1 - The core viewpoint of the article emphasizes the measures taken by the Beijing subway system to enhance transportation services during the Mid-Autumn Festival and National Day holiday periods, specifically through the addition of extra trains on Line 9 and the Capital Airport Line to meet passenger demand [1] Group 2 - The company advises passengers to closely monitor weather changes and plan their travel accordingly [1] - Passengers are reminded to pay attention to safety while using escalators and boarding or alighting from trains [1] - In case of large crowds, passengers are encouraged to cooperate with on-site staff for guidance [1] - The company highlights the importance of caring for elderly and children during travel and provides contact information for assistance [1]