• 沒有找到結果。

第五章 軸輻網路之直接與轉運路線決策

6.2 建議

1. 由本研究之分析結果可闡釋航商藉聯營合作得擴大航線載運量、增大運 送船型或提高運送頻次,以降低航運成本,解釋實務上航商普遍採用聯 營之經營模式。進一步,基於航商間的合作與競爭影響貨物載運量大小,

可運用構建的模式分析比較不同的航商聯營合作策略,並進而推估航商 利潤,透過利潤分析以評估不同競爭策略之優劣。

2. 在船型與頻次決策部份,構建的模式除進行單一航線的船型與頻次決策 分析,探討超大型貨櫃船投入營運的航運經濟性外,亦可應用以處理實 務上各種船型與頻次決策問題。例如分析各型貨櫃船的潛在市場,探討 高速貨櫃船投入營運的經濟性,以提供航商調整船隊規模與組成,或提 供造船廠做為建造設計船型之參考。

3. 在軸輻網路的路線決策部份,構建的模式除進行直接與轉運路線決策分 析外,亦可應用以探討軸心港間的港埠競爭與港口選擇課題,或者探討 未來超大型貨櫃船投入營運後之運送路線改變課題。

4. 本研究以解析性方法在二維目標值空間上決定雙目標最小化的柏拉圖最 佳解,並分析決策隨主要因素變動之情形,當欲探討的問題較複雜、有 過多的限制條件而無法以解析性方法分析時,可改為建立數學規劃模式 求解。

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附錄:運用模式推估亞太航運網路之可能轉變

貨櫃運輸自 1980 年代以來快速成長,全球港口近十年的貨櫃裝卸量平 均年成長率 10.5%,至 2003 年已達 3 億 1 仟 7 佰萬 TEU。近來貨櫃運輸快 速成長原因,主要因中國加入 WTO 後,歐美國家持續外包(Outsourcing)給 中國大陸進行產品之生產,因而促進貨櫃海運之成長,在中國經貿發展的驅 動力下,預估全球港口貨櫃裝卸量將持續成長,至 2009 年將達 5 億 2 仟 8 佰萬 TEU,年平均成長率 8.9%(Drewry Shipping Consultants[45])。全球各區 域的成長率不同,以亞太地區的成長率最高,而在亞太地區又以中國的表現 最亮眼。

由於全球整體港口貨櫃裝卸量持續上揚,但各區域進展不同,使得貨櫃 航線佈設變動極大。基本上航線佈設隨貨物運送的起迄點而改變,貨物在哪 裡,航線就安排在那裡。特別是目前遠洋貨櫃航線採軸輻網路,航商在航運 網路中選擇數個港埠為軸心港,以大型貨櫃船─母船航行於軸心港間的主航 線,而以小型貨櫃船─集貨船航行於軸心港與地區港埠間的集貨航線,則航 線變動連帶改變軸心港的選擇,使得航線佈設的變化更多、變動更大。

目前亞太地區軸輻系統主要以香港、上海、深圳、釜山、高雄與新加坡 等港口為軸心港。隨著中國經貿的快速發展,不僅中國的上海港與深圳港分 別躍居世界第三、四大貨櫃港,中國其他港埠的成長亦極為驚人,例如青島、

寧波、天津、廣州與廈門等港口的貨櫃裝卸量高達 20%以上。不僅中國沿海 港口貨櫃量大增,亞太地區的軸輻網路亦隨中國經貿發展而改變,愈來愈多 的遠洋航線直接靠泊中國港口,而且這些快速成長的港口對於目前軸心港地 位有取而代之態勢。未來軸心港高雄港與釜山港是否為中國港口所取代?這 是所有航商、港埠經營者或貨櫃場站業者等人所一致關心的課題。在此嘗試 探討此一課題。

由於詳細的貨物載運量統計數據極少,最新的資料更難取得,因此,本 研究欲以構建的路線決策模式分析目前亞太軸輻航運網路的變動,難採數值 分析方式進行,惟透過前一節範例分析的結果,可以推測判斷網路之可能轉 變。由 5.3.2 節第 1 項與圖 34 分析貨物載運量變動對決策的影響得知:當一 集貨區至目的港的貨量增加時,貨物傾向採直接運送。換句話說,當地區貨 量小且貨物經軸心港轉運時,當地港口為集貨港,而當貨量增大至足以安排