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<p>Electric shared micromobility has been widely promoted around the world in recent years. However, whether it is environmentally friendly remains unclear. Taking the dockless electric bike sharing (DEBS) program in Tianjin, China, as an example, this study combined a questionnaire survey and a life cycle assessment approach to examine the impact of DEBS promotion on user travel behavior changes and greenhouse gas (GHG) emissions. The results show that the sustainability of DEBS trips improves with increasing travel distance. Overall, DEBS mileage mainly replaced car travel (48.41%) and public transit travel (41.75%), followed by shared pedal bike (6.49%). On average, approximately 24.93–51.15&#xa0;g CO<sub>2</sub>-eq can be reduced based on per kilometer of DEBS travel. However, promoting DEBS among young and low-income groups, such as students, may increase GHG emissions. The maximum emission reduction of DEBS can be expected to reach approximately 78–86&#xa0;g CO<sub>2</sub>-eq/pkm with continuous operational efficiency improvement. It is worth noting that the DEBS bike upgrade worsened its sustainability performance. By providing a full spectrum of traffic mode substitution structures caused by DEBS and investigating the impact of product upgrades on the sustainability of DEBS, this study not only contributes to a better understanding of the changes in travel behavior and environmental impacts brought about by DEBS but also provides a valuable reference for improving the sustainability of urban mobility.</p>

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Is dockless electric bike sharing an environmentally friendly mode of transportation?

  • 期刊论文

  • 发表日期：

    2025年7月3日

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  • Shouheng Sun,
  • Yiran Wang,
  • Myriam Ertz

摘要

Electric shared micromobility has been widely promoted around the world in recent years. However, whether it is environmentally friendly remains unclear. Taking the dockless electric bike sharing (DEBS) program in Tianjin, China, as an example, this study combined a questionnaire survey and a life cycle assessment approach to examine the impact of DEBS promotion on user travel behavior changes and greenhouse gas (GHG) emissions. The results show that the sustainability of DEBS trips improves with increasing travel distance. Overall, DEBS mileage mainly replaced car travel (48.41%) and public transit travel (41.75%), followed by shared pedal bike (6.49%). On average, approximately 24.93–51.15 g CO2-eq can be reduced based on per kilometer of DEBS travel. However, promoting DEBS among young and low-income groups, such as students, may increase GHG emissions. The maximum emission reduction of DEBS can be expected to reach approximately 78–86 g CO2-eq/pkm with continuous operational efficiency improvement. It is worth noting that the DEBS bike upgrade worsened its sustainability performance. By providing a full spectrum of traffic mode substitution structures caused by DEBS and investigating the impact of product upgrades on the sustainability of DEBS, this study not only contributes to a better understanding of the changes in travel behavior and environmental impacts brought about by DEBS but also provides a valuable reference for improving the sustainability of urban mobility.