How well has the recent expansion of bicycling networks advanced transportation justice through appropriate distribution across the socioeconomic/demographic (SED) spectrum? Furthermore, does the installation of bicycling facilities lead to SED changes in a neighborhood or vice versa? We longitudinally assess 11,010 miles of bicycling facilities over ten years (2010–2019) in 11,293 block groups across 29 U.S. cities by facility type. Findings suggest inequalities in bicycling facility installation with People of Color (POC) experiencing the lowest rates of overall facility installation. However, bike lane installation was concentrated in lower-income areas (both POC and White). The causality relationships between bicycling facilities and SED changes were weak and largely non-significant. Income increases were followed by bicycling facility installations more so than increases in White populations were followed by bicycling facility installations. SED changes were more correlated with later bicycling facility installation than the inverse, suggesting that bicycling facilities were not linked to displacement.

通过在社会经济/人口 (SED) 范围内进行适当的分配，最近自行车网络的扩展在多大程度上促进了交通公平？此外，自行车设施的安装是否会导致社区的 SED 变化，反之亦然？我们在 10 年（2010 年至 2019 年）内按设施类型对美国 29 个城市的 11,293 个街区组中 11,010 英里的自行车设施进行了纵向评估。调查结果表明自行车设施安装方面的不平等，有色人种 (POC) 的整体设施安装率最低。然而，自行车道的安装集中在低收入地区（POC 和 White）。自行车设施与 SED 变化之间的因果关系很弱，而且基本上不显着。收入增加之后是自行车设施安装，而不是白人人口增加之后自行车设施安装。SED 的变化与后来的自行车设施安装的相关性高于相反，表明自行车设施与位移无关。