Using confirmatory factor analysis to evaluate the factor determining the bus usage in Surabaya City, Indonesia

Surabaya City is second biggest city in Indonesia which has a vital public transportation called as Suroboyo Bus. The city bus system provides route to connect the northern and southern part of the city with the central business district in the city centre. Policy of developing city bus system in north-south corridor aims to encourage the shifting of automobile to bus use as the traffic congestion is mainly caused by the high dependent of private mobility. The operation of Suroboyo Bus has been a concern because of the attractiveness of the quality with low deck and double-deck bus types, Suroboyo Bus also equipped a priority area, as well as a unique payment system with plastic bottle waste. This study aims to investigate the factors which influence the preference of Suroboyo Bus based on the user's perceptions. Thus, the city bus system can be evaluated to achieve sustainable city mobility. Using the method of Confirmatory Factor Analysis (CFA), the result shows that there are nine significant factors determining the use of Suroboyo Bus. The city bus usage is mostly influenced by the user characteristic and the service performance of the mode offered.