Improved bicycle infrastructure has become increasingly common in the United States as cities seek to attract new riders, including the demographic who do not feel comfortable riding with motor vehicle traffic. A key tool in designing low-stress networks is the use of separated or protected bicycle lanes, and intersections are the critical links. This paper presents an analysis of the perceived level of comfort of current and potential bicyclists from 277 survey respondents who rated 26 first-person video clips of a bicyclist riding through mixing zones, lateral shifts, bend-in, bend-out, and protected intersection designs. A total of 7,166 ratings were obtained from surveys conducted at four locations in Oregon, Minnesota, and Maryland, including urban and suburban locations. Survey respondents were categorized into four groups based on their response to attitudes and bicycling behavior by cluster analysis. Descriptive analysis and regression modeling results find that designs that minimize interactions with motor vehicles, such as fully separated signal phases and protected intersections, are rated as most comfortable (72% of respondents rated them as very comfortable or somewhat comfortable). Mean comfort drops off significantly for other designs and interactions with turning vehicles result in lower comfort ratings though there are differences for each design. Importantly, as the exposure distance, measured as the distance a person on a bicycle is exposed to traffic, increases the comfort decreases.

随着城市寻求吸引新的骑手，包括不适应机动车辆交通的人群，自行车基础设施的改善在美国已变得越来越普遍。设计低应力网络的关键工具是使用分开的或受保护的自行车道，而交叉路口是关键的环节。本文对277名受访者的当前和潜在自行车手的舒适度进行了分析，他们对骑乘者在混合区，侧移，弯入，弯出和受保护的交叉路口骑行的26个第一人称视频剪辑进行了评分设计。通过在俄勒冈州，明尼苏达州和马里兰州的四个地点（包括城市和郊区）进行的调查，总共获得7,166个评分。根据受访者对态度和骑车行为的反应，通过聚类分析将其分为四类。描述性分析和回归建模结果发现，将与机动车互动（例如完全分离的信号相位和受保护的交叉路口）最小化的设计被评为最舒适（72％的受访者将其评定为非常舒适或有些舒适）。对于其他设计，平均舒适度会大大降低，并且与转弯车辆的相互作用会降低舒适度，尽管每种设计存在差异。重要的是，随着暴露距离（以骑自行车的人暴露于交通中的距离来衡量），舒适性降低。描述性分析和回归建模结果发现，将与机动车互动（例如完全分离的信号相位和受保护的交叉路口）最小化的设计被评为最舒适（72％的受访者将其评定为非常舒适或有些舒适）。对于其他设计，平均舒适度会大大降低，并且与转弯车辆的相互作用会降低舒适度，尽管每种设计存在差异。重要的是，随着暴露距离（以骑自行车的人暴露于交通中的距离来衡量），舒适性降低。描述性分析和回归建模结果发现，将与机动车互动（例如完全分离的信号相位和受保护的交叉路口）最小化的设计被评为最舒适（72％的受访者将其评定为非常舒适或有些舒适）。对于其他设计，平均舒适度会大大降低，并且与转弯车辆的相互作用会降低舒适度，尽管每种设计存在差异。重要的是，随着暴露距离（以骑自行车的人暴露于交通中的距离来衡量），舒适性降低。对于其他设计，平均舒适度会大大降低，并且与转弯车辆的相互作用会降低舒适度，尽管每种设计存在差异。重要的是，随着暴露距离（以骑自行车的人暴露于交通中的距离来衡量），舒适性降低。对于其他设计，平均舒适度会大大降低，并且与转弯车辆的相互作用会降低舒适度，尽管每种设计存在差异。重要的是，随着暴露距离（以骑自行车的人暴露于交通中的距离来衡量），舒适性降低。