5. Conclusion
The objective of the study is to determine the importance of passengers’ expectations on the overall performance of the city bus service and to estimate the service levels of all the performance indicators representing the service quality of the city bus service on the basis of passengers’ perceptions and expectations. To achieve these objectives, data were collected through questionnaire survey and analysis of the data is conducted through suitable statistical measures.
It is found through the questionnaire survey that the passengers are very much unhappy with the service quality of the bus service. They also stated that if the service quality of the city bus service is improved up to their expectation then they will avail bus service instead of private vehicles and other paratransit modes. Therefore, their minimum expectation from city bus service is also collected through questionnaire survey. It is found that the collected questionnaire data is highly correlated. To analyze the questionnaire data and to understand their correlations, factor analysis has been conducted for both the perception and expectation data. Factor analysis determines that the correlated perception data are highly affected by the four latent factors namely safety, comfort, accessibility and timely performance. Factor analysis also determines the key identifying factors for the expectation data and they are expected safety, expected comfort, expected accessibility and expected timely performance. These perception and expectation factors are the latent factors and the factor scores from the respective analysis are the indicators of these variable. But these factor score values are reported in different units and hence they are not comparable with the observed variables and they are also not easily understandable. Therefore, these factor score values need to be converted into the same unit as of the observed variable so that they can be made easily comparable with each other and the observed variables. In this context, the difference between the perception factors and expectation factors indicate dissatisfaction of the passengers from the city bus service.