| Summary: | 碩士 === 國立交通大學 === 運輸與物流管理學系 === 107 === Evaluation of public transit performance is one of the transportation issues around the countries. Under the high control on public transit service, there are often cases of inefficiency and imbalance of supply and demand in the public transit systems. The government will set the award systems or subsidy programs to solve the problems that the externality may cause. However, these programs may change the public transit’s operation decisions. Through conducting literature review, few studies analyze the route operation efficiency from the perspective of routes. In addition, the effect of Taiwan’s inter-city subsidy routes’ efficiency under subsidy programs is not clear. Therefore, we use Granger causality test to understand the causal direction between operating subsidy amount and public transit system’s performance indexes related to cost and revenue. Next, we establish the translog production function through stochastic frontier analysis to distinguish the inefficiency term and random error term. We also consider the impact of operating subsidy program and other related factors on routes' efficiency estimation from the operators and government's view.
From the results, the route with higher subsidy amount has lower efficiency value on the service effectiveness side and cost effectiveness side, but the cost efficiency side is opposite. There is a significant effect of company's internal operation on the cost efficiency and cost effectiveness side. Other factors such as route characteristics and socioeconomic demographic characteristics, the results show that route length and frequency under current regulation would be provided more, the route efficiency value will be higher. More captive riders would have negative impact on the efficiency of cost efficiency side.
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