應用雲端計算概念於即時路口動態號誌控制之研究

Appling Cloud Computing Concepts to Real-Time Traffic Signal Control

有鑑於都市交通狀況日益複雜，因此發展路口動態號誌控制模式，將有助於交通控制趨向智慧化與即時性。近年雲端技術發展快速，如能將雲端服務優勢與即時控制技術加以緊密結合，達到即時決策與控制之路口動態號誌控制，將可發揮路口號誌分析及改善道路壅塞問題之功用。本研究利用路段偵測器獲得的車流資訊進而累積推估台北車站附近交通分區的起迄需求量，再以路徑式均衡指派演算法獲得路徑流量，進而計算各路口轉向交通量以求得臨界動線流率比，再計算即時號誌週期與時誌計畫。路口號誌控制器以資訊傳輸方式下載各時制，進行即時動態號誌控制。本研究之成果，對於即時路口動態號誌控制具有極大的參考價值與助益。

Currently urban traffic conditions increasingly complex, the development of dynamic signal control mode, for traffic control purposes tend to be more capable of wisdom and immediacy. In recent years, the rapid development of cloud services technology, such as the advantages of the instant can be the cloud services control technology to be closely integrated with real-time decision making and dynamic intersection signal control, will be able to exert the way of the signal analysis and improvement of the road congestion problem . In this study, road traffic information obtained by the detector and accumulate near the Taipei Railway Station reckoning OD traffic demand partition, and then assigned by a path based equalizer algorithm to obtain the path flows, and then calculates the flow ratios of critical movements, finally according the above information to calculated signal timing plan. Traffic controller download real-time signal information is proposed in this study, for the future of real-time dynamic intersection signal control will contribute to the future.