Colorado School of Public Health, Colorado State University, Fort Collins, USA; Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, USA.
Colorado School of Public Health, Colorado State University, Fort Collins, USA; Department of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, USA.
Environ Res. 2021 Nov;202:111709. doi: 10.1016/j.envres.2021.111709. Epub 2021 Jul 16.
Bike-sharing systems (BSS) are short-term bike rentals that can be borrowed from one location and retired to another at the conclusion of the trip. In 2019, 109,589 BSS trips were made each day in the U.S, and half of those in New York City (NYC).
This study aims to quantify the health risks and benefits of BSS in the U.S. and NYC.
This study followed a quantitative health impact assessment approach to estimate the risks and benefits of BSS. Specifically, we quantified the health impacts of physical activity, air pollution, and traffic incidents. We analyzed all the trips made by BSS in the U.S. and NYC. Input data on transport, traffic safety, air quality, and physical activity were collated from public records and scientific publications. We modeled the health impacts on adult users related to mortality, disease incidence, disability-adjusted life years (DALYs), and health economic impacts (related to morbidity and mortality).
We estimated that in the U.S. BSS trips resulted in an annual reduction of 4.7 premature deaths, 737 DALYs, and 36 million $USD in health economic impacts, mainly derived from the increment in physical activity. In NYC, we estimated an annual reduction of 2 premature deaths, 355 DALYs, and 15 million $USD in health economic impacts.
BSS in the U.S. and NYC provide a health benefit for bicyclists. Improvements in air quality and traffic safety across U.S. cities will maximize the health benefits of BSS.
共享单车系统（BSS）是一种短期自行车租赁服务，可以在旅行结束时从一个地点借用并归还到另一个地点。2019 年，美国每天有 109589 次 BSS 出行，其中一半发生在纽约市（NYC）。
本研究旨在量化美国和纽约市共享单车系统的健康风险和益处。
本研究采用定量健康影响评估方法来估计共享单车系统的风险和益处。具体而言，我们量化了身体活动、空气污染和交通事故的健康影响。我们分析了美国和纽约市所有的 BSS 出行。交通、交通安全、空气质量和身体活动方面的数据输入是从公共记录和科学出版物中收集的。我们建立模型，分析与共享单车系统相关的成年人健康影响，包括死亡率、疾病发病率、残疾调整生命年（DALYs）和健康经济影响（与发病率和死亡率相关）。
我们估计，在美国，BSS 出行每年减少了 4.7 例过早死亡、737 个 DALYs 和 3600 万美元的健康经济影响，主要来自身体活动的增加。在纽约市，我们估计每年减少了 2 例过早死亡、355 个 DALYs 和 1500 万美元的健康经济影响。
美国和纽约市的共享单车系统为骑自行车者提供了健康益处。美国各城市空气质量和交通安全的改善将最大限度地提高共享单车系统的健康效益。
