| Summary: | 碩士 === 國立臺北大學 === 都市計劃研究所 === 99 === The mass rapid transit (MRT) is an important transport system in urban areas because that the constructions and services of MRT enhance the environmental quality of urban life. However, developing MRT is costly and only serving major transport corridors. It needs feeder systems for MRT to provide door to door services. Walking and taking bus are two major modes for accessing MRT stations in Taipei now, but significant differences of modal split exist among MRT stations and biking is unpopular to be used for accessing MRT stations. Increasing bike uses could expand service coverage of MRT; and, replacing motorized trips with non-motorized trips should decrease air pollutions and traffic congestions. Thus the main motivation for this study is how to reform built environments to encourage MRT passengers to use green transport modes to access MRT stations.
The purpose of this study is to empirically explore the influences of built environments on the mode choice for transit access by using questionnaire survey and discrete choice models. The study began with reviewing literatures on two topics: "built environment impacts on mode choice" and "mode choice for transit access". Then case interviews were employed to develop theoretical hypotheses. To verify the proposed hypotheses, this study used the passengers of Ximen station, Zhongxiao Xinsheng Station, Zhongxiao Dunhua Station and Yongchun station along Taipei MRT Nangang Line as study samples. The logit models were employed to analyze the sample data and to examine the hypotheses. Finally, based on the empirical results, numerous built environment planning strategies were proposed to enhance green transport mode uses for transit access.
The empirical results of entering station trips show that population density, intersection density and number of banks increase non-motorized mode uses; employee density, transport mode diversity and distance to MRT stations decrease non-motorized transport mode uses; employee density, block size, bikeway length and road length increase bus uses; and, population density, building density and parking space decrease bus uses. For leaving station trips, population density, building density, distance to bus stops, number of shops and Ximen station increase non-motorized transport mode uses; employee density, vehicle density, mixed land uses, transport mode diversity and road length decrease non-motorized transport mode uses; employee density increases bus uses; and, vehicles density decreases bus uses. According to the empirical results and the goal of encouraging green transport mode uses, this study proposed the following planning strategies: (1) developing blocks by mixed sizes, providing walkways and bikeways in large blocks and strengthening signal controls in small blocks; (2) majorly mixing land uses by residential, commercial entertainment, dining and retail uses and avoiding excessive mixing of land uses; (3) continuously developing MRT networks to enlarge service coverage of MRT stations; and, (4) appropriately decreasing road spaces and parking spaces along MRT corridors.
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