多重代理人系統應用於輕軌列車運行調度模擬之研究

輕軌運輸系統相較於其他軌道運輸系統而言，具有造價成本低、施工期短、路權選用彈性高之特性，其運量亦可達中運量水準，因此已成為我國各縣市政府推動捷運建設的另一替選方案。目前國內尚無輕軌運輸系統的實際營運經驗，多數文獻偏重於平面輕軌優先號誌課題之探討。因此本研究之模擬模式，除考量平面交叉路口特性之外，亦考量不同路權之影響，探討延誤產生時，如何因應延滯情境而啟動營運策略，維持服務品質。本研究以多重代理人系統為基礎，依照系統功能性與服務對象，劃分出列車、車站、路口與區域路權等四種代理人，其功能分別為：列車運行控制、判斷車站之停等時間、判斷優先號誌啟動與否、監督管理範圍內之代理人與判斷調度策略屆主動與否。未來整體系統架構係設定輕軌車輛為鋼輪鋼軌系統，以GPS為車輛定位系統，並具備車載通訊設備與軌旁定位設施，列車運行則為移動閉塞制；車站區分為一般車站與轉運站；優先號誌雖以絕對優先為主，但於情境分析時納入條件優先；營運策略則有站間趕點與縮短班距。

關鍵字

輕軌運輸系統；多重代理人系統；優先號誌

並列摘要

Comparing with other rail transit systems, LRT (Light Rail Transit) has become a better alternative to construct MRT in Taiwan because of its advantages such as low cost, short period of construction, flexibility of ROW (Right of Way) and similar capacity with a medium-capacity transit system. So far there is no LRT in operation in Taiwan and most of research studies are full of discussions surrounding the signal priority for LRT at intersections. Therefore, the proposed simulation model in this study aims at providing better LRT operation strategies to ensure service quality in case of delay occurrences for scenarios with signal priority conditions and different types of ROW: According to system functions and objects to be served, four types of agent including trains, stations, intersections and regions are classified based on multi-agent systems. The functions are used to control train movement, determine waiting time at stations, give signal priority and implement operation strategies with concerned agents. The proposed LRT technical system architecture consists of wheel-rail rolling stock, GPS-based on board equipment, communication network among train, a control center and track-side facilities. Moving Automatic-blocking System is also assumed as the train control system. Stations are classified into general stations and transfer stations. An absolute priority-based signal strategy will be used in this study, while partial signal priority strategy is only used for scenario analysis. Two types of operation strategy are recommended: one is to speed up to reduce running time and the other is to shorten headway.