Taiwan National Freeway No.3 is the second north&south; freeway in Taiwan, beginning in Keelung City at Jijin Interchange on the provincial highway 2 (Jijin Road) and ending in Linbian, Pingtung on the provincial highway 17. It is the longest freeway in Taiwan with a total length of 431.5 km (268.1 mi). This freeway mostly serves as a bypass to major cities in Western Taiwan, traveling through suburban and rural areas.