And the Railways and Highway are circle system.
Transportation and Smart card
1. Taiwan Railway had a circle of Taiwan
2. Taiwan High Speed Rail from Taipei to Kaohsiung
3. MRT(metro) system: Taipei and Kaohsiung
I. Taipei had complete MRT system and use EASY Card (yoyo card; Chinese: 悠遊卡, yōuyóu kǎ)
II. Kaohsiung MRT system had two lines, and use IPASS (Chinese: 一卡通)
Road Map
note: smart card and IPASS both used on almost bus.
Smart card in Taipei, EASYCARD, YOYO card in Taipei MRT system