本研究以台灣貨櫃吞吐量最大之港口-高雄港為研究主體，探討高雄港若增設第三拖船停泊基地，能使拖船降低多少往返基地之行駛距離，進而降低多少油耗量。本研究以交班時間間隔8小時、12小時兩種情境進行討論，並使用歷史營運資料模擬。本研究之研究目的有二：(1) 若分別在高雄港68號碼頭與71號碼頭設立第三基地後，拖船的總行駛距離是否會減少。(2) 若有減少，本研究將取距離減少較多的碼頭為新增設之第三基地，並模擬拖船在不同航速下，相較於原有兩基地分別能降低多少油耗。
研究結果顯示，在高雄港68號碼頭或71號碼頭設立第三基地，均能減少拖船往返基地行駛距離。然而，交班間隔為8小時時，於68號碼頭增設第三基地，能使拖船往返基地之行駛距離減少4.93%，於71號碼頭增設第三基地，僅能使拖船往返基地之行駛距離減少0.96%；交班間隔為12小時時，於68號碼頭增設第三基地，能使拖船往返基地之行駛距離減少4.95%，於71號碼頭增設第三基地，僅能使拖船往返基地之行駛距離減少0.93%。因此68號碼頭是較佳的第三基地選擇。
在選定68號碼頭為第三基地後，本研究模擬在不同的航速之下的油耗量。不管在何種船速下，增設第三基地後均能使拖船往返基地之油耗下降。無論交接班間隔為8小時或12小時，均以航速在12節減少最多：在交接班間隔為8小時能減少7.31公噸，相當於減少5.09%之油耗量；在交接班間隔為12小時能減少6.87公噸，相當於減少5.1%之油耗量。因此本研究認為應於68號碼頭設立第三基地，並建議拖船往返基地避免以全速航行，使高雄港能降低燃油汙染及港務公司非必要的燃油消耗，成為一個環境、財務永續並重的綠色港口。

This study mainly focuses on the largest port in terms of cargo throughput in Taiwan- Kaohsiung Port, mostly discussing how much cruising distance and fuel consumption of tugboats could be reduced if an additional third tugboat home base in Kaohsiung Port is introduced. Two after shift intervals scenarios are being considered: 8 hours and 12 hours. This study has two research objectives: (1) selects the terminal that can reduce the most cruising distance as a third home base. (2) After adding the third home base, this research simulates the fuel consumption and compares the results with that of the two current home bases.
The research results are as follows: Under 8 hours after shift interval scenarios, the cruising distance reduces by up to 4.93% when a third home base is added at terminal # 68, whereas the cruising distance of the tugboat reduces by only 0.96% when the additional home base is at terminal # 71. Under 12 hours after shift interval scenario, cruising distance reduces by up to 4.95% when adding the third home base at terminal # 68, whereas the cruising distance reduces by only 0.93% when the additional at terminal # 71. Therefore, terminal number 68 is considered to be a better location for the third tugboat home base.
After selecting terminal # 68 as a third tugboat home base, this study calculates the fuel consumption under different tugboat cruising speed scenarios. Regardless if whether the after shift interval is 8 hours or 12 hours, fuel consumption can be reduced by 12 knot cruising speed at most. Under 8 hours and 12 hours scenarios, the fuel consumption can be reduced by 5.09% and 5.1%, respectively. Thus, this research recommends that by setting the third home base at terminal number 68 and by avoiding maximum cruising speed will reduce pollution and unnecessary fuel consumption, hence making Kaohsiung Port become the most sustainable green port.

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