Taipei-Yilan is one of the busiest transportation corridors in Taiwan. There are approximately 1260 daily round-trip bus services on weekdays and 1700 on weekends. These services are offered by four companies: Kamalan Bus, Capital Bus, King Bus, and Metropolitan Bus. Our literature review, observations and interviews indicate that service and route selection are critical to standing out in this competitive market. With regard to service, the bus companies focus on innovative ideas to make themselves unique, e.g., passengers can collect tickets in the convenience store chains, some buses are equipped with a lift for passengers in wheelchairs, etc. With regard to route selection, each bus company has multiple stops at Taipei and Yilan ends, connecting distinct bus or metro transfer stations to boost the ridership. Joint bus-rail tickets are also issued to expand passengers' accessibility. The extreme, but healthy competition between the bus companies and the effort put into improving public transit by government agencies has shaped the Taipei-Yilan corridor as a model of green transport.