地下铁列车运行的自动化系统主要包括列车自动控制、列车自动防护和自动编制列车运行图。华盛顿地下铁的第二期工程由市区到国家机场业已开工。这样,使计划的100英里营业里程系统中的17.6英里每周平均载送约10万旅客(除星期六和星期日外)。第一期工程于1976年3月27日完工,开始营业以来,据记载,列车 The automation system of subway train operation mainly includes train automatic control, train automatic protection and automatic preparation of train operation diagram. The second phase of the Washington Metro has started from urban area to National Airport. That way, an average of about 100,000 visitors (excluding Saturdays and Sundays) are carried on average every week at 17.6 miles on the planned 100 mile milestone system. The first phase of the project was completed on March 27, 1976, and since its opening, it has been recorded that the train