While many professionals support bicycling for transportation to reduce traffic congestion and improve public health, many potential cyclists see the risks from traffic injuries as a major barrier. The purpose of this paper is to investigate the impact of bicycle facilities on perceptions of bikeability, and how these perceptions vary among different groups. Data comes from surveys (N = 2157) deployed in ten study neighborhoods as part of two research projects. Respondents were asked to rate a series of images of hypothetical roadways in terms of perceived comfort, perceived safety, and willingness to try bicycling. Latent-class regression was used to model these responses, with bicycle facility type and roadway characteristics as explanatory variables and sociodemographics and attitudinal factors (car preference, bike enjoyment, risk tolerance, and anti-exercise) as covariates for class membership. A recurring theme among the presented solutions is the emergence of two pro-bicycle classes - risk-embracing and risk-cautious - together with a pro-car class. Results indicate that the impact of protected bicycle facilities on perceptions are much higher for the pro-bike/risk-cautious group. The major implication of these findings is that there likely exists a sizeable segment of the population that, although perhaps just as interested in bicycling as the typical pro-bicycle class, is more cautious in their perceptions of comfort and safety. Those belonging to this subgroup generally view minimal facilities as much more unsafe and uncomfortable than their risk-accepting counterparts, but have comparable perceptions regarding high-quality protected bicycle facilities.

尽管许多专业人员支持骑自行车进行运输以减少交通拥堵并改善公共卫生，但许多潜在的骑自行车者将交通伤害的风险视为主要障碍。本文的目的是研究自行车设施对骑车感受的影响，以及这些看法在不同群体之间的差异。数据来自在两个研究项目中部署在十个研究社区中的调查（N = 2157）。要求受访者根据感觉舒适度，安全性和尝试骑自行车的意愿对一系列假想道路图像进行评分。潜伏类回归用于对这些响应进行建模，以自行车设施类型和道路特征作为解释变量以及社会人口统计学和态度因素（汽车偏好，自行车享受，风险承受能力，和反运动）作为类成员的协变量。在提出的解决方案中，经常出现的主题是出现了两个赞成自行车的类别-风险包容和风险谨慎-以及赞成汽车类别。结果表明，对于赞成骑行/风险谨慎的群体，受保护的自行车设施对感知的影响要大得多。这些发现的主要含义是，可能有相当一部分人口虽然对骑自行车的兴趣与典型的亲自行车类一样，但对舒适性和安全性的看法更为谨慎。属于这一亚组的人通常认为，最小的设施比接受风险的同类设施更不安全和不舒服，但对于高质量的受保护自行车设施却有着可比的看法。