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Title: | 輕軌優先號誌與平面路權對路網服務容量影響之研究 A Study of Network Service Capacity Influence of Light Rail Transit Priority Signal and Surface Right of Way |
Authors: | Shang-Chuan Chi 紀尚詮 |
Advisor: | 許添本(Tien-Pen Hsu) |
Keyword: | 輕軌運輸系統,優先號誌,平面路權,路網服務容量,模擬, Light Rail transit,Priority Signal Control,Surface Right of Way,Network Service Capacity,Traffic Simulation, |
Publication Year : | 2014 |
Degree: | 碩士 |
Abstract: | 輕軌運輸系統起源於平面電車,能行駛於平面路段,且能夠彈性使用不同路權佈設,造價相對較為低廉。為解決交通問題,逐步推廣輕軌系統。然而臺灣尚無輕軌系統的營運實例,仍須對平面路權及優先號誌對路面交通衝擊影響進行評估。
平面輕軌列車在交叉口同一般車流依照號誌燈號通行,為增加系統運行效率,輕軌運輸系統建置往往伴隨優先號誌的設置以提高輕軌運輸系統的優先權。然而平面路權輕軌路權與優先號誌的建置皆會對現有路網造成衝擊,因此本研究以路網服務車流量及路網服務人流量的角度,提出輕軌車輛數影響值及輕軌人數影響值對路網建置輕軌前後進行評估分析。 本研究回顧輕軌路權佈設型式、優先號誌控制方式及輕軌列車車輛運行參數,分別建構B型路權及C型路權路網,以三路口路網作為分析對象,將VISSIM作為模擬平台進行模擬。結果發現,B型路權因為建置專用車道導致路網可行駛車輛數較建置輕軌系統前下降,而C型路權,受惠於優先號誌影響使輕軌列車行駛方向通過小汽車數上升,使整體路網小車通過數量上升。然而C型路權輕軌列車平均行駛時間卻明顯較B型路權上升60%~100%。 研究結果顯示,混合號誌在班距的適用範圍較採單一優先號誌廣。其中B型路權中適用性最廣的為混合E、混合A型及部分優先適用性最廣。而在C型路權情境中以混合B型、混合A及混合E型適用性較廣。原因為部分優先採延長同向綠燈、縮短紅燈方式而非直接改變時相順序,因此對路網影響較佳,混合E型為部分優先及完全補償的結合其中完全補償適時抑制優先號誌使兩者組合績效較佳,而混合A及混合B型為完全優先及部分優先結合兩者功能亦有較佳的績效。 LRT(Light rail transit) system originated in tramway which could drive on streets. This right of way could be use flexibility and relatively low cost. In case of financial constraints of the authority, light rail transit system has been a new solution for our traffic problem. Light rail transit system operates with priority signal in intersections. Therefore, it needs to do research for LRT priority signal control and evaluate the impact of road network service capability. The study propose two indexes which are LRV-Car-affecting-value and LRV-people-affecting-value. In addition, the study considering the characteristics of LRV at intersections and the properties using VISSIM as simulation platform. The result shows that the network cars decline with the B-type LRV and the number of cars in C-type network increase after the system built. However, the travel time of LRV in C-type system increase 60%~100%. The result also revel the most suitable control logic in every type of road geometry. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/56920 |
Fulltext Rights: | 有償授權 |
Appears in Collections: | 土木工程學系 |
Files in This Item:
File | Size | Format | |
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ntu-103-1.pdf Restricted Access | 9.39 MB | Adobe PDF |
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