在美国、新加坡、香港等地的影响下,作为一个重要的领域和门类,国内地铁卡的集藏、研究活动也雨后春笋般地在全国各地不断地发展扩大。目前,除了上海、广州已先后开通并启用地铁卡作为结算工具外,据悉北京启用地铁卡的计划已提上了有关方面的议事日程。随着南京、西安等国内各大城市地铁建设项 Under the influence of the United States, Singapore, Hong Kong and other places, as an important field and category, the collection and research activities of domestic subway cards have also been mushroomed throughout the country. At present, apart from Shanghai and Guangzhou, Metro cards have been opened and used as settlement tools. It is learned that the plan to activate the subway card in Beijing has been put on the relevant agenda. With Nanjing, Xi’an and other major cities in the country subway construction projects