Cost-Benefit Assessment of Introducing Electric Scooter Sharing into Kaohsiung

[[abstract]]國人機車持有率高，產生的空氣污染為都會區主要的移動空氣污染源之一。環保意識抬頭，為減緩地球暖化的問題，政府積極推動電動機車的購買，然電池續航力及充電便利性一直是民眾不願騎乘與不敢購買電動機車的主要原因。本研究為增加民眾使用電動機車的意願，於高雄市左營區加入共享電動機車租賃系統，使捷運出站後轉程接駁的運具多了一項選擇，並以成本效益分析方法評估其可行性。公車與公共腳踏車為高雄捷運接駁的轉乘運具，公車班距長候車時間久，騎乘公共腳踏車到較遠的點民眾意願低。本研究利用電動機車的環保且具移動的便利性，以共享的概念做為接駁運具為出發點，解決前述公車等候時間及腳踏車接駁距離的限制，選擇在人潮往返平均的左營地區設置5個租賃站點，若每小時使用電動機車共享系統往返左營捷運站的需求人數為58人時，透過成本效益分析方法評估經濟效益的可行性，可發現其淨現值與益本比皆顯示具可投資的經濟效益，內部報酬率為25.98%；經敏感度分析後發現當需求量少於42人、平均騎乘距離低於3公里、租賃場站總數高於12站時，結果顯示為不具投資的經濟效益。本研究結果可提供政府發展共享電動機車租賃系統時的一項基本參考依據。[[abstract]]Motorcycle ownership in Taiwan is very high; pollution from motorcycle is major mobile sources of air pollution in the city. Governments promote electric scooters actively to mitigate the problem of air pollution. However, the results are poor due to uncertainty of battery life and accessing charging station. We propose an electric-scooter-sharing system in Zuoying to increase the intention of using electric scooter.Bus and bike-sharing are currently MRT access mode in Kaohsiung. The current bus headway is not frequent enough; the bike-sharing may avoid long waiting time of a passenger but connects only neighbor area of MRT station. Electric scooter is suitable to connect farther places and furthermore an environmental friendly access mode in urban area. Thus, we expect that the electric-scooter-sharing system is a proper MRT accessing mode. To evaluate this idea, MRT Zuoying station is chosen and totally five electric scooter rental stations were planned. If the travel demand via electric-scooter-sharing system is 58 persons per hour from and to Zuoying MRT station, cost-benefit analysis shows this system is feasible to implement; the internal rate of return is 25.98%. If the demand decreases to 42 persons per hour, traveling distance is less then 3 kilometer per person or rental stations are more than 12, the system is unfeasible