都會區永續發展目標下之運具分配比例

The Most Sustainable Transport Modal Split Ratio of Metropolitan Area

許添本(Tien-Pen Hsu) ； 劉欽瑜(Ching-Yu Liu)

《都市交通》 19卷2期 (2004/06) Pp. 3-18

https://doi.org/10.29774/UT.200406.0001

摘要

發展永續運輸，必須有一衡量機制，以衡量運輸發展的永續現況及預測未來趨勢。由於運具分配比例可反映私人運具使用情形及其可能帶來的負面影響（空氣污染、噪音、能源消耗及交通肇事等），故可用來判定各都市之運輸系統是否永續，也易於應用來決定如何達成永續。因此，本研究首先透過運具分配與永續運輸之關聯分析，建構都會區永續運輸目標下最適運具分配數學規劃模式；用以求解在永續目標下之最適運具分配比例。研究結果顯示，以人口數約為230萬的高雄都會區為例，最符合永續發展目標下，理想的運具比例分別為徒步與腳踏車合計佔68.5%，公車佔31.5%及完全不使用機動車，亦即機動車比例佔0%。依據此來設定一理想的目標值做為永續發展的理想值，則可用來評估一個運輸系統的永續水準。故以近似值方式，設定一組理想的永續運具分配比，其為徒步與腳踏車合計為70%，大眾運輸為30%，機動車輛為0%。當一個城市的實際運具比例與之相距越遠則越不永續，如此可以界定一個永續運輸水準的指標。

關鍵字

永續發展 ； 數學規劃 ； 運具分配比例 ； 永續運輸水凖

並列摘要

In order to measure the sustainable level, an indicator system is needed. Because the modal split ratio can represent a transport system usage situation, the optimal modal split ratio under consideration with sustainable development objective can be seen as the most sustainable modal split. In this paper, a mathematical programming model is formularized for solving the most sustainable modal split.. Resulted from the model, the optimal modal split of sustainable development is the walking and cycling of 68.5%; the bus of 31.5%; and no motorized trip of 0%. Basing on it, the ideal sustainable modal split ratio for creating the assessment model of sustainable level is set as the non-motorized mode shares 70%; the public mass transit shares 30% and motorized vehicle shares 0%. Using parameter of the distance of existing modal split away from the ideal level, the index of sustainability is created and can be adopted to assess the development situation of a metropolitan area.

並列關鍵字

Sustainable Development ； Mathematical Programming ； Modal Split ； Sustainable Transportation Level

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