Taipei ←→ Taichung - 2hr 30mins
Taoyuan International Airport ←→ Taichung - 2hr
Kaohsiung ←→ Taichung - 3hr
Taiwan's long distant highway transportation services are provided by private transportation companies: Guo-Guang (Kuo-Kuang) Bus Corp., UBus and Free Go Bus Corp. ...etc. They are carrying passengers and shuttling on significant provincial highways and the freeways.
Owing to a more intensive service schedule, some bus companies provide even 24 hours service, plus the more competitive ticket fares than airplane and train, the private transportation companies have become one of the most popular transportation service providers.
During the continual holiday's period, passengers are suggested to take trains or flights in order to prevent serious traffic jam on the freeways. But reserving tickets as early as possible is necessary.