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題名 | 運輸需求預測整合模型統合架構之探討=A Combined Model for the Four-step Travel Demand Forecasting Procedure |
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作 者 | 陳惠國; 陳文婷; | 書刊名 | 運輸學刊 |
卷期 | 24:4 2012.12[民101.12] |
頁次 | 頁467-495 |
分類號 | 557.8 |
關鍵詞 | 旅次發生; 旅次分配; 運具選擇; 交通量指派; 整合性模型; 超級路網; Trip generation; Trip distribution; Modal split; Traffic assignment; Combined model; Supernetwork; |
語文 | 中文(Chinese) |
中文摘要 | 基於用路人行為之均衡原則,本研究構建包括旅次發生、旅次分配、運具選擇與交通量指派在內之四階段整合模型,以克服傳統旅運預測之四階段界面不一致性的問題。整合模型經由改良後之超級路網的詮釋,可視為一個延伸性交通量指派問題。本研究以Frank-Wolfe演算法求解小規模路網,分別針對線性與非線性路正是成本函數加以驗證,並歸納出需求函數之係數的限制,文末亦比較整合模型與反饋式循序性核型之優劣點,並做出結論與建議。 |
英文摘要 | Based on Wardrop's first principle, this research formulates a combined model covering the four steps, i.e., trip generation, trip distribution, modal split, traffic assignment, embedded in the traditional travel demand forecasting procedure. Using a modified supernetwork representation, the proposed combined model can be naturally regarded as an extension of the fixed demand traffic assignment model. The proposed combined model and the associated Frank-Wolfe algorithm are demonstrated with a hypothesized small network characterized by both linear and nonlinear link cost functions. The experiment also indicates that a certain restriction must be imposed on the parameters of origin-destination travel demand functions to ensure the convergence of applicable solution algorithms. A comparison of our proposed combined model and the sequential travel demand forecasting with feedback was also made. A few remarks are given in the end. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。