來蒐集資訊實屬不易。本研究對於車流量之推估，是在有限的車輛偵
器條件下， 流 係 網
經過實例測試，證實本研究模式推估之正確性。
5.1 結
究之結 ：
的
區域的車流量範圍，其他區域的則無法較準確的推估出來。
由於礙於經費限制，因此要在一般道路上每個路段皆佈設偵測器
測 利用路段 量間之關 ，推估出路 中每個路段的車流 量範圍。
論
本研 論如下
1. 在路網中，不需要在每個路段皆佈設偵測器，即可利用本研究所 構建的模式推估求出未佈設偵測器路段之流量。
2. 本模式推估出的路段車流量範圍大小與路網中偵測器佈設的位置 與密度有極大的關係。如果路網中，偵測器佈設密度低，則所推 估出流量範圍大的路段占較大之百分比；反之，當路網中偵測器 佈設密度高時，則所推估出流量範圍小的路段則占較大之百分 比，亦即所推估出的流量較為準確。
3. 從測試的結果發現，在路網中佈設偵測器時，以分散佈設為原則，
不要集中佈設在某個特定的區域。否則會造成只能得到路網中某 特定
5.2 建議
料來源，如能加入其他的資料來 探針車的話，應能在同樣的偵測器數量 本研究之建議如下：
1. 目前僅以路段流量間之關係，從已設偵測器之路段推估未佈設偵 測器路段之流量，未來如能在推估的階段加入一些模式，應能增 加推估之準確性。
2. 目前僅以偵測器之資料作為資 源，如：計程車、公車等 下增加推估之精度。
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23. 陳建名，「有 GPS 資訊提供下之公車旅行時間之研究」，國立 大學運輸科技與管理學系碩士論文，民國 93 年
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