Promoting public transportation, which includes rail, metro, bus rapid transit, and bus services is one of the most popular urban transportation policies among transportation authorities in many countries. This popularity may reflect the social requirement to pursue a sustainable transportation system by motivating people to use an environmentally friendly transportation mode. In particular, the modal shift from the automobile to public transportation is highlighted in urban transportation planning because many cities have suffered from serious traffic congestion, which has caused economic losses as well as negative impacts on local, regional, and global environments. In order to attract individuals to use public transportation, the improvement of service is critical. This includes increasing service frequency, decreasing travel time, upgrading station facilities, and introducing higher-capacity vehicles.