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篇名
號誌群組劃分方法之模擬暨比較分析
並列篇名
A Simulation and Comparison Analysis for Signal Grouping
作者 黃國平紀允晴林庭煒
中文摘要
傳統上劃分號誌群組時大多以人工搜尋的方式進行,不僅缺乏效率,而且當路網龐大時,會因為路口及路段屬性資料過多,而導致群組屬性管理的費力費時。因此本研究首先根據相關文獻歸納整理得到7個可能影響群組績效的劃分準則,分別為臨界路段長度、相鄰路段速率差、車流轉向比率、路型、車道數、道路等級、車流方向等;接著以直交表(OrthogonalArray)設計這7個準則不同組合的實驗內容,共輔以地理資訊系統進行群組劃分,再利用TRANSYT-7F及CORSIM求解群組最佳時制及模擬群組績效,最後進行系統績效的變異數分析,以找出顯著影響系統績效的準則。由於受限於真實都市路網之結構與交通流量可能無法涵蓋7個影響變數之道路屬性,因此藉由虛擬實驗路網、流量及轉向資料,並透過實驗設計及系統模擬的方法,測試7項劃分準則對系統群組績效的影響;之後並以一簡化之臺南都會區路網進行個案研究,來檢測本研究群組劃分方法之適用性,得到具體的成果如下:1.臨界路段長度與車流轉向比率為影響群組績效相當顯著的因子。2.群組劃分時,若沒有慎選劃分準則,可能導致群組績效不如各路口採用獨立控制的方式。
英文摘要
The purpose of this study is to integrate experimental design, systemsimulation, and GIS to develop an algorithm which can help grouping signals forbetter traffic operations. By definition, signal grouping is to clusterneighboring signals into a coordinated plan to smoothen traffic operations onroads. Many thresholds have been employed to determine if signals can be groupedtogether. Those thresholds include block length, road capacity, turningmovement, number of lanes, traffic flow direction, street corss section layout,etc. The application of those thresholds in signal grouping in the past tendedto use the superimposing or the annexing method. Therefore, this study employsthe approach of orthogonal array to test the threshold combination for signalgroupin. By doing this, a test network is designed which can represent thecharacteristics of most commonly seen street networks. Different combinations oftraffic flow, block length, etc. are then put together on the test network togenerate the efficiency of the threshold combinations. To test the efficiency ofa certain threshold combination, the CORSIM simulation program is used toproduce the MOE (measure of efficiency), and the program of TRANSYT-7F is usedto provide the timing plan for the signal network, It is therefore this researcha well designed and thorough experiment test. During the testing process, theGIS plays the role to provide the network characteristics which enhances theinterface of data provision and the display of output. In addition, thedevelopment of the Tainan City's signal GIS will later help to test thevalidation of the research result. Through coordination with ciyt signal controldivision, the result of the study is regarded as valid and solid by engineeringjudgement.
起訖頁 1-30
關鍵詞 號誌群組地理資訊系統直交表系統模擬Signal groupingGISOrthogonal array, Systems simulation
刊名 運輸學刊  
期數 200109 (13:3期)
出版單位 中華民國運輸學會
該期刊-下一篇 整體運輸計畫體制化與法制化之初探
 

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