 Although small businesses along the line (most notably in Zhongshan and Datong, two older districts) have benefited from increased business during the free trial period, analysts noted that the initial business boon may only be short-lived and it may be years before these areas see real benefits as a result of the new line.Over the years, three versions of rolling stock were used on this line, as well as on the through services between Nanshijiao and Beitou.Originally, the line used a large fleet of C301 train sets.