大眾運輸導向交通量指派整合模型之研究

A Transit Oriented Development Based Traffic Assignment Combined Model

都市運輸需求隨著社經活動的需求增加，衍生出各種交通問題，為確保都市的健全發展，減少使用私人運具所造成的外部性，發展以大眾運輸導向的都市運輸規劃策略，逐漸受到重視。雖然大眾運輸導向的都市運輸規劃政策有助於透過政策的規劃，達到運輸永續發展的目標，但就運輸規劃模型的發展上，評估大眾運輸導向的運輸規劃模型卻仍有不足。本研究建立一大眾運輸導向的交通量指派整合模型，同時考量大眾運輸導向之運具選擇與用路人路徑選擇行為的關係，包含第一哩及最後一哩的無縫運輸問題，並進行相關數學性質的證明，以梯度投影法求解，並以數值範例說明模型的正確性與特性。由研究成果可知，本研究所提出的模型與求解方法可用以評估大眾運輸導向產生之運輸需求，並可提供做為大眾運輸發展的評估依據。

As the urban transportation demand increases with the demand of socio-economic activities, derived to a variety of traffic problems. In order to ensure the sound development of the city transportation and reduce the externalities which are caused by the users of private transport modes, the transit-oriented development (TOD) of urban transport planning strategies are emphasized more and more. In transportation management, when planners tend to plan the transit-oriented development, they need to discover the potential need of transit first. However, there has not been enough research done on estimating the need of TOD. According to this, we proposed a TOD based traffic assignment combined model with modal split and route choice. Considered the modal split and route choice simultaneously, and explained the issue of the first mile and last mile that derived by transit. An improved Gradient Projection algorithm is developed to solve this proposed model. Numerical examples are provided for model validation purposes. Finally, the computational results showed the model and algorithm we proposed can solve the TOD traffic assignment problem completely and also can be provided to the TOD assessment.