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  • 學位論文

混合車流號誌化路口微觀機車紓解模型之建立

Microscopic Motorcycle Discharging Model at Mixed Traffic Flow Signalized Intersections

指導教授 : 許添本

摘要


混合車流一直是交通上複雜的難題,在台灣,汽機車比例幾乎是1:1,平均1.5個人就擁有一輛機車,可見機車在車流中的影響絕對不容忽視。過去先進國家對機車在道路上的行為研究並不多,多為東南亞國家對機車進行研究工作。但他們的研究大多只針對路段中的跟車行為和變換車道行為建立微觀模型,鮮少對號誌化交叉路口車輛紓解的行為進行深入的探討。而臺灣因機車數量眾多,在民國八十八年起,開始在路口實施不同的機車停等設施,使得路口的幾何結構不同。透過蒐集實際車流紓解資料發現,機車在紓解時會隨速度的增加而增加與其他車輛的間程,因此,本研究透過分析所蒐集的車流資料,建立微觀車流模型。本模型以機車與影響車輛的安全門檻與為基礎建立紓解模擬,安全門檻是一與縱向速度相關的函數,建立的基礎是描繪機車在不同橫向間程下與影響車保持的縱向間程,透過比較不同的安全門檻形狀,最後找出抛物線形最適合描述安全門檻的輪廓。同時以機車-機車和機車-汽車兩種組合,建立之間的互動關係,其關係以加速度作描述,當機車與影響車間程較小,加速度則越小。最後編寫電腦模擬程式,進行視覺化模擬,以多個週期資料,分別進行紓解率、紓解速率及紓解軌跡驗證,都得到結果良好。

並列摘要


Mixed traffic flow is always a complicate topic in the field of transportation science. In Taiwan, the ratio of motorcycles to non-motorcycles is approximately 1:1, and in average number of every 1.5 people have a motorcycle. Therefore, the impact of motorcycle in traffic is significant enough to be considered. Unlike the Southeast Asian countries, the advanced countries rarely discuss the behavior of motorcycles on the study of traffic in the past. However, they mostly only study on road section, not intersection. In 1999, the government began to set up different motorcycle facilities at intersections because of the large number of motorcycles in Taiwan. These facilities change the geometric of intersections. In order to understand the behavior of motorcycles at signalized intersections, this study models a microscopic discharge motorcycle model through real traffic flow data collection. The model bases on safety distance, which is called safety threshold in this study, between influence vehicles. After comparing with different shape, parabola is the best to describe safety threshold. This study establishes, moreover, interaction relationship between motorcycle-passenger car and motorcycle-motorcycle base on acceleration varying. At the same speed, Motorcycle is easier to accelerate in shorter distance than other vehicles. Finally, through visual computer simulator to simulate motorcycle discharge at signalized an intersection. The discharge rate, discharge speed and discharge trajectory is tested with several cycle data and obtain good performance.

參考文獻


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被引用紀錄


黃郁傑(2015)。混合車流號誌化路口疏解時間預測模式之研究〔碩士論文,國立交通大學〕。華藝線上圖書館。https://doi.org/10.6842%2fNCTU.2015.00766

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