2007年10月7日,经过4年零9个月艰苦努力的建设,北京市地铁5号线正式开通试运营。中共中央政治局委员、国务院副总理曾培炎,中共中央政治局委员、北京市委书记刘淇共同启动“地铁5号线开通试运营首次列车发车指令”,并慰问了建设者。建设部部长汪光焘、国务院发展改革委副主任陈 On October 7, 2007, after 4 years and 9 months of hard work, Beijing Metro Line 5 officially opened its trial operation. Zeng Peiyan, member of the Political Bureau of the CPC Central Committee and vice premier of the State Council, member of the Political Bureau of the CPC Central Committee and secretary of the Beijing Municipal CPC Committee, initiated the “First Train Departure Instruction on the Trial Operation of Metro Line 5” and condolences to the builders. Wang Guangtao, Minister of Construction, and Chen, Deputy Director of the Development and Reform Commission of the State Council