現在各道路管線埋設已近飽和，故設置位置之選擇更行困難，管線單位資料不全，施工時缺乏相互間溝通聯繫，以致經常挖損其他單位管線衍生許多問題，有鑑於此自共同管道法頒布後，乃致力於研究如何有效地利用道路下之狹小空間，在現今之環境下解決共同管道設置路線及位置。
本研究藉由地理資訊系統與管線資料結合，利用地理資訊系統作為輔助工具進行電腦化及科學化之規畫分析，透過Arcview Analysis決定共同管道設置路線。考量管線設置成本、遷移成本、挖掘成本再以數學規劃方法與最佳化理論，藉由Lingo軟體求解最佳共同管道設置位置。使設計者節省甚多處理共同管道路線及位置問題希望能解決長久以來為人們所詬病之問題，使決策的過程科學化及透明化。

In the past half centry ,one created the miracle on Taiwan economics because of one’s hard work following this society improvement, every demand is in creasing. However , the puble cables settled for commodities such as tap water , a sewer , electric power ,and gas absolutly have to changed for satifying people’s need and every public development of Government , and this is a foundation of following out the economic development .
For elaborating completely the expecting efficacy of the public constructions and promoting the quality of the enviroment , it depends on the following effective maintenance and preservation .Because of the full cable settled in every route , choosing the correct route for setting becomes more difficult.Without the complete information form other section , and communicating under construction , it happened o lof that one damaged other cable.After having common low , we are deveted to figure out how to use effectively in the narrow and small space under the road , and solve the setting problem on the common route and location in this modern times .
By combiting the information system and the wire information of geography . we analyse the common route by it , and then decide the common route by ArcView Analysis . For considering the capitalized lost of setting , moving and digging , it is the best way to solve the setting of common route by lingo software . Therefore, this helps designer solve the problem in dealing for common route and location .We hope it can really handle the problem , and it lets the decision become scientific and tranpicuous.

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