在台灣推行機車電動化政策之下，報廢機車的種類由油轉電的過程將對機車回收產業造成衝擊。本研究透過先前研究建立的機車零件清單、ISO22628和UNIFE兩種回收率計算方法，以及實地調查報廢機車處理廠建立三種不同的回收程度情景以計算再使用與回收率（Reuse and recycling rate, RR rate）和再使用與再生利用（Reuse and recovery rate, RRR rate）並和歐盟廢車輛指令的標準進行比較，以及計算塑膠回收率來對比未來的法規要求。另外針對2022至2050年間台灣報廢電動與燃油機車的物質流進行分析，從各回收過程的節點檢視台灣報廢機車處理的改善方向。
在考量台灣現況的BAU (Business as usual) 情景中電動與燃油機車達成了67.5%和82.5%的RR rate，電動機車中的鋰電池和電子零件，以及兩種機車中的複合塑膠零件，是無法進一步提升RR rate的主要障礙。儘管兩種機車大於25%目標的塑膠回收率的結果顯示，在台灣推行歐盟廢車輛指令對於新車回收塑膠使用率的新規範是可行的，但在回收材料的品質不確定性之下。仍要積極進一步提升塑膠的回收率。
台灣報廢機車的物質流回收節點分析顯示，在台灣的回收法規的環境下，報廢機車零件的拆解程度已相當高，且材料回收主要來自人工拆解，但仍有許多拆解的零件最終仍以能源回收處理。在95% RRR rate的目標相較於RR rate容易達成的狀況下，要建立機車製造商與回收處理業者間的緊密合作，建立標準的拆解回收流程，以確保獲得更高品質的回收材料來提升RR rate。

Under Taiwan's policy of electrifying motorcycles, the transition from combustion engine(CEM) to electric motorcycles(EM) will impact the motorcycle recycling industry. This study utilizes a list of motorcycle parts established by previous research, two recycling rate calculation methods (ISO22628 and UNIFE), and field surveys of motorcycle recycling facilities to establish three different recycling level scenarios. These scenarios are used to calculate the Reuse and Recycling Rate (RR rate) and Reuse and Recovery Rate (RRR rate), compare them with EU directive 2000/53/EC, and calculate the recycling rate of plastics to meet future regulatory requirements. Additionally, the study analyzes the material flow of end-of-life (EoL) EM and CEM in Taiwan from 2022 to 2050, examining improvements for the recycling process at various stages.

Considering the current situation in Taiwan under the BAU scenario, EM and CEM achieved RR rates of 67.5% and 82.5%, respectively. The lithium batteries and electronic components in electric motorcycles, along with composite plastic parts in both types of motorcycles, are major obstacles to further increasing the RR rate. Although the results for the recycling rate of plastics exceeding the 25% target indicate that implementing the updated Directive 2000/53/EC for new motorcycle recycled plastic usage in Taiwan is feasible, the uncertainty of recycled material quality remains a challenge that necessitates further enhancement of plastic recycling rates.

The material flow analysis of EoL motorcycles in Taiwan shows that under Taiwan’s recycling regulations, the disassembly level of motorcycle parts is already quite high, with material recycling primarily from manual disassembly. However, many disassembled parts still end up being processed for energy recovery. Given that achieving the 95% RRR rate goal is easier than the RR rate, it is necessary to establish close cooperation between motorcycle manufacturers and recycling processors to standardize the disassembly and recycling process, ensuring the acquisition of higher quality recycled materials to enhance the RR rate.

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