Chen Peng, Jiao Junfeng, Xu Mengyuan, Gao Xu, Bischak Chris
College of Transportation Engineering, Tongji University, Shanghai, China.
Urban Information Lab, The University of Texas at Austin, Austin, TX, USA.
J Transp Geogr. 2018 Jun;70:265-274. doi: 10.1016/j.jtrangeo.2018.06.015. Epub 2018 Jul 5.
This study investigates the effects of sidewalk modification and bike lane accommodation on students' active travel to schools. The modeling framework assumes that a student's choice for the mode of travel to school is impacted by numerous factors such as neighborhood crime rates, traffic safety, built environment amenities, and socio-demographic factors. A generalized linear model is employed to capture longitudinal changes in the mode share of students who walk or bike to school based on data collected from 53 schools in the city of Seattle, Washington. The modeling results indicate that (1) enhanced sidewalk modifications and bike lane accommodations encourage students walking and biking to school; (2) the implementation of Seattle's student assignment plan helps promote students walking to school possibly due to the change from school choice to neighborhood-based school assignment; (3) the size of the school attendance area is not significantly correlated with students' active travel activities, while the size of school enrollment is negatively associated with walking; (4) in school areas with high employment density, biking to school may be a more attractive option for students; (5) greater crosswalk density may encourage more students to walk to school; (6) the density of bike crashes is negatively associated with students biking to school. In terms of policy implications, transport planners should continually promote walking and biking supportive environments and implement policies to encourage active student travel.
本研究调查了人行道改造和自行车道设施对学生步行或骑车上学的影响。该建模框架假设，学生选择上学出行方式受多种因素影响，如邻里犯罪率、交通安全、建成环境便利设施以及社会人口因素等。基于从华盛顿州西雅图市53所学校收集的数据，采用广义线性模型来捕捉步行或骑车上学的学生出行方式份额的纵向变化。建模结果表明：（1）强化人行道改造和自行车道设施会鼓励学生步行和骑车上学；（2）西雅图学生分配计划的实施有助于促进学生步行上学，这可能是由于从学校选择制转变为基于邻里的学校分配制；（3）学校招生区域的大小与学生的主动出行活动没有显著相关性，而学校入学人数的规模与步行呈负相关；（4）在就业密度高的学校区域，骑车上学对学生来说可能是更具吸引力的选择；（5）更高的人行横道密度可能会鼓励更多学生步行上学；（6）自行车事故密度与学生骑车上学呈负相关。在政策影响方面，交通规划者应持续推动支持步行和骑车的环境，并实施政策鼓励学生主动出行。
