This study evaluated changes in cycling trips before and after the construction of an urban greenway in Vancouver, Canada. Urban cycling has gained in popularity as a healthy and environmentally friendly mode of transport. Carsharing is also on the rise globally, and it has the potential to disrupt urban mobility, including cycling and public transit. In this study, we hypothesized that cycling trips will increase after the opening of the greenway for residents living within 300 meters of the greenway compared to those living further away. We also posit ed that carsharing membership would have a positive impact on cycling uptake. Data were drawn from a three-year natural experiment study (2012–2015) of the Comox-Helmcken Greenway (“Comox Greenway”) in Vancouver. An experimental-and-control design wasemployed to compare pre-post differences in cycling trips for residents within 300 m of the greenway (experimental group, n = 239) and those further away (control group, n = 285). The opening of the greenway resulted in a 251% increase in cycling trips for the experimental group compared to the control group. Ethnically white subjects reported 130% more cycling trips than non-white subjects, and those aged 65 and older reported 79% fewer cycling trips than younger age cohorts. Carshare membership reduced the number of cycling trips after the greenway opening. Results suggest that greenways could be an effective strategy to boost urban cycling, and that carsharing programs may have a countervailing effect on cycling. The findings support recent initiatives to reappropriate road space in urban areas for cycling and walking due to the COVID-19 pandemic.

这项研究评估了加拿大温哥华城市绿道建设前后自行车出行的变化。城市自行车作为一种健康，环保的交通方式而日益普及。全球范围内的汽车共享也在不断增加，并且有可能破坏包括自行车和公共交通在内的城市交通。在这项研究中，我们假设居住在绿道300米以内的居民相比居住在绿道之外300英里的居民，单车旅行会在绿道开放后增加。我们还假设，汽车共享会员资格将对自行车的使用产生积极影响。数据来自温哥华的Comox-Helmcken Greenway（“ Comox Greenway”）的一项为期三年的自然实验研究（2012-2015年）。n  = 239）和距离较远的人（对照组，n  = 285）。与对照组相比，绿道的开放使实验组的自行车旅行次数增加了251％。种族白人受试者报告的骑车旅行比非白人受试者多130％，而65岁及65岁以上的人报告的自行车旅行比年轻同龄人少79％。绿道开放后，汽车共享会员资格减少了骑车旅行的次数。结果表明，绿道可能是促进城市骑行的有效策略，并且汽车共享计划可能会对骑行产生抵消作用。这些发现支持了近期因COVID-19大流行而重新分配城市道路空间用于骑自行车和步行的举措。