Tze-chiang limited express

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Tze-Chiang (Chinese: 自強號; pinyin: Zìqiáng háo), also Tzu-chiang or Ziqiang, is a type of limited express train service operated by Taiwan Railway (TR). Of the five service classes operated by TR, the Tze-Chiang service is the fastest. Ticketing is done on the basis of mileage (NT$2.27 per km with a 10 km minimum fee).

This service is operated with 6 different trainsets: the E1000 series, EMU3000, TEMU1000 (Taroko Express), DR2800, DR3100, and the TEMU2000 (Puyuma Express). The now-retired EMU100 was the first trainset built for this service, which was used for 30 years, terminating ordinary runs at June 15, 2009.