台北市棋盤式公車路網與現況公車路網之效益評估比較

Abstract

公車系統向來為台北市重要大眾運輸工具，但這些年來，公車一直未能隨 著經濟發展的腳步一同邁進，反而現在面臨乘客大量流失的命運。為求有 效解決台北市公車營運困境，改善都市交通擁擠，交通部運輸研究所最近 規劃台北市棋盤式公車路網，然而，該棋盤式公車路網之效益如何在該報 告書中並未詳予評估，究竟此一路網能否帶給台北市民新希望，這是一個 有趣的課題，因此，本研究的最主要目的即在於棋盤式公車路網與現況公 車路網之績效。本研究首先探討公車路網評估之重要變數，接著建立公車 路網評估指標，共分三大層面包含六項指標：１﹒使用者：平均旅行時間 、平均旅行成本２﹒業者：每班次平均週轉時間３﹒管制者（政府）：路 網彎繞度指標、路網密度指標、公車系統總成本由於實際路網非常複雜， 需藉由套裝軟體TRANPLAN來模擬真實狀況，輸入路網資料，進行交通量指 派工作，並將其部份輸出結果，經由整理、計算成為路網之評估指標。最 後結果顯示，在六項指標中，棋盤式公車路網全部優於現況公車路網，表 示棋盤式公車路網應當是可行的。 Bus system is one of the major transit system in Taipei city. But it is facing now a serious decrease in passengers . In order to improve the bus operation and traffic congestion in Taipei . The Institute of Transportation , Ministry of Transportation and Communications has planned a grid bus network in Taipei city recently . However , the performance of that grid bus network hasn't been evaluated in that report . The main purpose of the thesis is to evaluate and compare the performance between grid bus network and present bus network . At first , this research establishes six evaluation indices of bus network whivh can be divided into three groups : 1 . User : average travel time , average travel cost 2 . Operator : average turnover time per bus 3 . Regulator (government) : circuity of network , density of network , total cost of bus system . Due to the complication of real network , this research secondly simulates the Taipei case by the package of TRANPLAN , whereby the evaluation indices are established. Finally , it is concluded from the evaluation indices that grid bus network is better than present bus network and that grid bus network plan could be a practicable plan in Taipei city.