Do micromobility systems promote public transit usage? Evidence from U.S. Cities
分析了美国100多个城市中微型交通系统数量与公共交通客流量之间的关系，发现2015-2019年间每增加一个微型交通系统，人均公共交通客流量显著增加0.026次，但疫情后效果不显著。
We conduct the first U.S.-wide analysis, which includes over 100 cities, of the relationship between the number of micromobility systems and public transit ridership, which we proxy for using unlinked passenger trips (UPT) per capita. Our main study period is 2015 to 2019, during which we find that an additional micromobility system is associated with a statistically significant increase in UPT per capita of 0.026 (p < 0.01), which represents 1.2% of mean UPT per capita. Evaluating these effects by type of micromobility system, we find that only e-scooter systems exert a consistently statistically significant positive association. We also find: 1) that the effect is larger in less populated urban areas and; 2) when examining this effect after the COVID-19 pandemic (2022 to 2023), effects are insignificant or marginally significant. This implies micromobility systems complemented public transit before the pandemic, but the effect afterwards is less clear.