Despite fewer cars on roads during the COVID-19 pandemic, deaths associated with motor vehicle collisions in New York City and Seattle remained largely unchanged in 2020. Using police data on weekly counts of collisions, we compared trends in 2020 with those of 2019, while controlling for the reduction of traffic volumes and seasonal weather conditions. Results of difference-in-differences estimation suggest that during the early months of the pandemic, or March-May, the incidence rates of severe or fatal injury crashes related to speeding increased by nearly 8 times in Seattle and more than 4 times in New York City. In the rest of 2020, they were still significantly higher than what would be expected in the absence of the pandemic. This research suggests that in similar situations that depress travel demand (e.g., another pandemic), policymakers should formulate plans to reduce speeding which may prevent an upswing in severe injuries and fatalities.

中文翻译：

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2020 年 COVID-19 大流行期间超速和交通相关的伤亡事故：西雅图和纽约市的案例

尽管在 COVID-19 大流行期间道路上的汽车有所减少，但纽约市和西雅图与机动车碰撞相关的死亡人数在 2020 年基本保持不变。我们使用警方关于每周碰撞次数的数据，将 2020 年的趋势与 2019 年的趋势进行了比较，而控制交通量和季节性天气条件的减少。差异估计的结果表明，在大流行的前几个月，即 3-5 月，与超速相关的严重或致命伤害事故的发生率在西雅图增加了近 8 倍，在纽约增加了 4 倍以上。城市。在 2020 年余下的时间里，它们仍显着高于没有大流行的情况下的预期。这项研究表明，在抑制旅行需求的类似情况下（例如，另一种流行病），