| Summary: | 碩士 === 國立暨南國際大學 === 土木工程學系 === 94 === In the past decade, all major cities around the world face various traffic problems caused by the supply shortage of highway infrastructure compared to the overwhelming demand of vehicle growth. It is unlikely to mitigate these problems by constructing new highway systems since the available lands are getting limited. On the other hand, physically increasing the supply in transportation systems would derive more traffic demand, and consequently, these traffic problems may not be improved or resolved, and even get worsened. Therefore, managing the traffic demand by using Transportation Demand Management, TDM, to improve traffic problems has been one of the main strategies employed in the major cities around the world. TDM strategies were proposed to promote the use of public transportation, cycling and walking on one hand, and to discourage the use of private transportation on the other hand. Some studies (DOB, 2005) show that most of the people in Taipei metropolitan are private (auto and motorbike) users and the motor vehicles in 2005 increase by 2.07% compared to the ones in 2004. Therefore, it is important to propose some TDM strategies including incentive and disincentive to increase the use of public transportation shifted from private users. There are two types of TDM strategies in general, one is incentive strategies, also known as Carrots; and the other one is restrain strategies, known as Sticks. It is also shown that people are more likely to accept the former, whereas the latter has a better effect. In this study, the tendency of satisfication towards the existing TDM strategies for road users in Taipei city, Taiwan is investigated. As for the strategies not implemented yet, the tendency of acceptance is also analyzed. Finally, a stated choice experiment is carried out to capture the traveler’s choice behavior under different scenarios of TDM strategies. This research will apply Ordered Probit Model and Logit Model to analyze the satisfaction and acceptability with executed and unexecuted TDM strategies and will compare the similarities and dissimilarities within work, shopping and leisure trips, and discuss the relationship between variables. The results indicate that people are more likely to accept Carrots, while Sticks are more effective. Finally, the estimation results show that NL model is superior to MNL model.
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